Updated on 2024/12/19

写真a

 
Chao Jinhui
 
Organization
Faculty of Science and Engineering Professor
Other responsible organization
Information and System Engineering Course of Graduate School of Science and Engineering, Master's Program
Electrical Engineering and Information Systems Course of Graduate School of Science and Engineering, Doctoral Program
Contact information
The inquiry by e-mail is 《here》
External link

Degree

  • 工学博士 ( 東京工業大学 )

Research History

  • 1996.4 - 　

    中央大学理工学部教授

  • 1992.4 - 1996.3

    中央大学理工学部助教授

  • 1989.10 - 1992.3

    東京工業大学電気電子工学科助手

Professional Memberships

  • 電子情報通信学会

  • IEEE

  • EUSIP

  • IACR

  • NOLTA

  • SITA

  • 情報処理学会

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Papers

  • Definition and Estimation of Dimension in Facial Expression Space Reviewed

    Masashi Shinto, Reiner Lenz, Jinhui Chao

    Human-Computer Interaction. Theory, Methods and Tools. M. Kurosu (Ed.): HCII 2021   LNCS ( 12762 )   604 - 621   2021

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    It has recently been shown that the facial expression space as a psychophysical image space is a Riemann space where the metric tensor is defined by the JND discrimination thresholds at every point in the space. The major obstacle to understand this space is how to estimate the metric tensor in high dimensions which requires an inaccessible number of psychophysical experiments. In this paper we address two fundamental issues: methods to estimate the Riemann metric tensor in a high dimensional space and how to define and to determine the effective dimensions of Riemann spaces and psychophysical spaces. We introduce new definitions for these dimensions and novel algorithms for estimating the high dimensional Riemann metric tensor and for dimension reduction to low dimensional subspaces. We apply these algorithms to the facial expressions space. The Riemann metric tensor of the high dimensional facial expression space is estimated from psychophysical measurements of JND data. We apply these methods to investigate the facial expression space. We estimate the effective dimension (together with upper and lower bounds) of Riemann manifolds and psychophysical spaces.

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  • A New Algorithm to Find Isometric Maps for Comparison and Exchange of Facial Expression Perceptions Reviewed

    Masashi Shinto, Jinhui Chao

    Human-Computer Interaction. Theory, Methods and Tools. M. Kurosu (Ed.): HCII 2021   LNCS ( 12762 )   592 - 603   2021

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    Recently transformations between psychophysical spaces of different individuals found applications in various perceptional studies such as color science and facial expressions. These spaces are known to be Riemann spaces of which the Riemann metric tensor is defined by JND discrimination thresholds at every point. In particular, a map between these spaces preserving subjective differences is called an isometry or distance-preserving map. Until now, algorithms to compute such a map assumed the Riemann metric tensor or hyperellipsoids of JND thresholds, therefore demand a large number of measurements. They can only obtain an isometry in a restricted form without uniqueness and difficult to apply to high dimensions. In this paper, we propose a new algorithm to compute a local isometry in general form without restrictions between Riemann/psychophysical spaces. We only need JND threshold data points more than the dimension of the space by solving a linear equation system which achieves uniqueness of the solution and statistical /numerical stability. We apply the algorithm to shown examples for comparison and exchange between facial expression perceptions of different observers.

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  • Dimension Estimation and Topological Manifold Learning Reviewed

    Hajime Tasaki, Reiner Lenz, Jinhui Chao

    Proceedings of IJCNN 2019 - International Joint Conference on Neural Networks   ( N-19673 )   2019.7

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    Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：978-1-7281-2009-6/$31.00 ©2019 IEEE  

    We describe a framework which can be used to investigate the geometrical structure of datasets in high-dimensional spaces. Understanding these geometrical properties
    is essential in machine learning in general. An application which
    has received much attention recently is the investigation of adversarial examples which can be easily identified by humans
    but which are misleading neural networks.
    . We argue that a key concept in the analysis is the dimension
    of a manifold. Many machine learning methods use dimension
    reduction techniques to understand or classify the input data
    We point out different definitions of a dimension of a manifold. We use tools from the theory of topological manifolds to introduce local, or intrinsic and global dimensions. We introduce a framework for dimension estimation and topological manifold learning based on the measure ratio method to estimate the dimensions and structure of the data manifold. As
    an illustration we use images of handwritten digits and points of
    a Klein-bottle embedded in a five-dimensional space. We compare
    the results obtained by the measure ratio method with the well-known local-principal component analysis estimation.

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  • How to Compare and Exchange Facial Expression Perceptions Between Different Individuals with Riemann Geometry Reviewed

    Masaki Shinto, Jinhui Chao

    Human-Computer Interaction. Recognition and Interaction Technologies} M. Kurosu (Ed.): HCII 2019   LNCS ( 11567 )   155 - 167   2019

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    Facial expression recognition has been a major theme in
    researches of human-centric science and technology. An open question
    remained is that it is difficult to find an objective representation for
    facial expressions so that one can compare perceptions between differ ent individuals. It is partially due to that psychological spaces of facial
    expressions until now were built from subjective evaluations such as SD
    score or Affective grid, in which it is difficult to find correspondence
    between physical stimuli and psychological responses. Recently, Sumiya
    et al. built a psychophysical facial expression space by measuring JND
    thresholds in the facial image space, which define the space as a Rie mann manifold [7]. In this paper, we present algorithms to compare and
    exchange facial expression perceptions between individuals using isome try or a distance-preserving map between the Riemann spaces.

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  • Transform Facial Expression Space to Euclidean Space Using Riemann Normal Coordinates and Its Applications Reviewed

    Runa Sumiya, Jinhui Chao

    Human-Computer Interaction. Recognition and Interaction Technologies M. Kurosu (Ed.): HCII 2019   LNCS ( 11567 )   168 - 178   2019

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    It is reported recently in [1] on construction of the psychophysical space of facial expressions through measurement of JND thresholds in the space. It is shown that the facial expression space is, in fact, not a Euclidean space but a Riemann space of which the Riemann metric is defined by the JND thresholds. In this paper, we shown how to transform the facial expression space to Euclidean space in a way to preserve geometry such as distances and angles in the Riemannian space. We build the Riemann normal coordinate system in the facial expression
    space, which can be regarded as a generalized polar coordinate system
    consisted of geodesics emanating from the origin and concentric circles
    with the radius measured by geodesic distances. Results by applying the
    above method to the JND data in [1] are shown together with application
    to expression recognition.

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  • Measurement of JND Thresholds and Riemannian Geometry in Facial Expression Space Reviewed

    Runa Sumiya, Reiner Lenz, Jinhui Chao

    20th International Conference, HCI International 2018, Las Vegas, NV, USA, July 15-20, 2018, Proceedings, Part I, M. Kurosu (Ed.): HCI 2018,   LNCS 10901   453 - 464   2018

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    Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Springer  

    DOI： 10.1007/978-3-319-91238-$7_37$

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  • On implementation of GHS attack against elliptic curve cryptosystems over cubic extension fields of odd characteristic Reviewed

    Naoki Hashizume, Fumiyuki Momose, Jinhui Chao

    Contemporary Mathematics   701   125 - 150   2018

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    Language：English   Publishing type：Part of collection (book)   Publisher：American Mathematical Society  

    In this paper, we present algorithms implementing the GHS attack against Elliptic curve cryptosystems (ECC). In particular, we consider two large classes of elliptic curves over cubic extension fields of odd characteristic which have weak covering curves against GHS attack, whose existence have been shown recently [17], [18], [19], [20]. We give algorithms to compute the defining equation of the covering curve and to transfer the DLP from the elliptic curve to the Jacobian of the covering curve. An algorithm to test if the covering curve is hyperelliptic is also given in the appendix.

    DOI： 10.1090/conm/701/14144

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  • Examination of classifying hoaxes over SNS using Bayesian Network Reviewed

    Ryutaro Ushigome, Takeshi Matsuda, Michio Sonoda, Jinhui Chao

    CANDAR 2017: The Fifth International Symposium on Computing and Networking   2017.11

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  • Simplex-based dimension estimation of topological manifolds Reviewed

    Hajime Sasaki, Reiner Lenz, Jinhui Chao

    Proc. International Conference on Pattern Recognition 2016   3598 - 3603   2016.11

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  • Color image ownership protection based on spectral domain watermarking using QR codes and QIM Reviewed

    Luis Rosales-Roldan, Jinhui Chao, Mariko Nakano-Miyatake, Hector Perez-Meana

    Multimedia Tools and Applications   67 ( 3 )   1 - 22   2016.8

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  • Modeling, Measuring, and Compensating Color Weak Vision Reviewed

    Satoshi Oshima, Rika Mochizuki, Reiner Lenz, Jinhui Chao

    IEEE Transactions on Image Processing   25 ( 6 )   2587 - 2600   2016.3

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  • Color-weak compensation using local affine isometry based on discrimination threshold matching Reviewed

    Rika Mochizuki, Takanori Kojima, Reiner Lenz, Jinhui Chao

    JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION   32 ( 11 )   2093 - 2103   2015.11

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    We develop algorithms for color-weak compensation and color-weak simulation based on Riemannian geometry models of color spaces. The objective function introduced measures the match of color discrimination thresholds of average normal observers and a color-weak observer. The developed matching process makes use of local affine maps between color spaces of color-normal and color-weak observers. The method can be used to generate displays of images that provide color-normal and color-weak observers with a similar color difference experience. It can also be used to simulate the perception of a color-weak observer for color-normal observers. We also introduce a new database of measurements of color discrimination threshold data for color-normal and color-weak observers obtained at different lightness levels in CIELUV space. The compensation methods include compensations of chromaticity using local affine maps between chromaticity planes of color-normal and color-weak observers, and one-dimensional (1D) compensation on lightness. We describe how to determine correspondences between the origins of local coordinates in color spaces of color-normal and color-weak observers using a neighborhood expansion method. After matching the origins of the two coordinate systems, a local affine map is estimated by solving a nonlinear equation, or singular-value-decomposition (SVD). We apply the methods to natural images and evaluate their performance using the semantic differential (SD) method. (C) 2015 Optical Society of America

    DOI： 10.1364/JOSAA.32.002093

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  • Construction of display profiles using simplicial maps and application to color reproduction of displays Reviewed

    Masashi Yamamoto, Jinhui Chao

    Proceed. of AIC2015 (Association Internationale de la Couleur), AIC Middle Meeting at Tokyo, 2015   2015.6

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  • Riemann Geometric Color-Weak Compensation for Individual Observers|rn|HCI International 2014 Conference, Universal Access in Human-Computer Interaction. Applications and Services, LNCS: 8514, pp.121-131, HCI2014. Reviewed

    Takanori Kojima, Rika Mochizuki, Reiner Lenz, Jinhui Chao

    Proceedins of HCI International 2014 Conference, Universal Access in Human-Computer Interaction. Applications and Services   LCN-8514   121 - 131   2014.6

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  • Preference for Color-Enhanced Images Assessed by Color Deficiencies Reviewed

    Yi-Chun Chen, Yunge Guan, Tomoharu Ishikawa, Hiroaki Eto, Takehiro Nakatsue, Jinhui Chao, Miyoshi Ayama

    COLOR RESEARCH AND APPLICATION   39 ( 3 )   234 - 251   2014.6

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：WILEY-BLACKWELL  

    In this study, we propose color images with color enhancement for congenital red-green color deficiency on the basis of the model proposed by Mochizuki et al. [In Terrassa, Spain: Proceedings for CGIV, Springfield VA: IS&T 2008;208-213] with the aim of facilitating color customization in displays used by color-deficient observers. Three types of color enhancements for deficiency were addressed in this study: colors were enhanced along the protan confusion line (i.e., P-enhancement), deutan confusion line (i.e., D-enhancement), and a line between the protan and deutan confusion lines (i.e., mix-enhancement). We investigated the color-enhanced image that is most preferred by each group of protan, deutan, and normal observers. Protan and deutan in this study indicate observers that are both dichromats and anomalous trichromats. Nine protan, nine deutan, and six normal observers participated in the experiment. The results showed that among the three types of color enhancements, the D-enhancement provided the best performance for protan observers. For deutan observers, all three types provided effective enhancement, although the P- and mix-enhancements were slightly better than the D-enhancement. Our results indicated that color enhancement increases the preference evaluations of protan and deutan observers. (c) 2013 Wiley Periodicals, Inc. Col Res Appl, 39, 234-251, 2014; Published Online 20 February 2013 in Wiley Online Library (). DOI 10.1002/col.21795

    DOI： 10.1002/col.21795

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  • Invariants of 3D images and face authentication Reviewed

    Hiroto Sasaki, Jinhui Chao

    Proceedings, 2013 International Workshop on Smart Info-Media Systems in Asia (SISA2013)   122 - 127   2013.10

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  • Elliptic curves with weak coverings over cubic extensions of finite fields with odd characteristic Reviewed

    Fumiyuki Momose, Jinhui Chao

    Journal of Ramanujan Math. Soc.   28 ( 3 )   299 - 357   2013.3

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  • Preference of Images with Color Enhancement Assessed by Color Anomalous and Normal Observers Reviewed

    Yi-Chun Chen, Yunge Guan, Tomoharu Ishikawa, Hiroaki Eto, Takehiro Nakatsue, Jinhui Chao, Miyoshi Ayama

    Proceedings of CSAJ2012, International Conference of Color Science |rn|Association of Japan.   2012.5

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  • Color-Weakness Compensation using Riemann Normal Coordinates Reviewed

    Satoshi Oshima, Rika Mochizuki, Reiner Lenz, Jinhui Chao

    2012 IEEE INTERNATIONAL SYMPOSIUM ON MULTIMEDIA (ISM)   175 - 178   2012

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    We introduce normal coordinates in Riemann spaces as a tool to construct color-weak compensation methods. We use them to compute color stimuli for a color weak observers that result in the same color perception as the original image presented to a color normal observer in the sense that perceived color-differences are identical for both. The compensation is obtained through a color-difference-preserving map, i.e. an isometry between the 3D color spaces of a color-normal and any given color-weak observer. This approach uses discrimination threshold data and is free from approximation errors due to local linearization. The performance is evaluated with the help of semantic differential (SD) tests.

    DOI： 10.1109/ISM.2012.42

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  • Fast color-weakness compensation with discrimination threshold matching Reviewed

    Rika Mochizuki, Satoshi Oshima, Jinhui Chao

    Computational Color Imaging , CCIW2011   LCN-6626   176 - 187   2011.8

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  • 色弁別閾値を基準とした新しい色弱補正法の提案 Reviewed

    望月理香, 中村竜也, 趙晋輝

    電子情報通信学会論文誌   J94-A ( 2 )   127 - 137   2011.2

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  • リーマン正規座標系を用いた色空間における色差保存写像の構築と色弱補正への応用 Reviewed

    大島哲, 望月理香, 趙晋輝

    電子情報通信学会論文誌   J94-D ( 1 )   68 - 76   2011.1

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  • Exact Compensation of Color-Weakness with Discrimination Threshold Matching Reviewed

    Rika Mochizuki, Satoshi Oshima, Reiner Lenz, Jinhui Chao

    UNIVERSAL ACCESS IN HUMAN-COMPUTER INTERACTION: APPLICATIONS AND SERVICES, PT 4   6768   155 - 164   2011

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    Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：SPRINGER-VERLAG BERLIN  

    In this paper we describe a novel compensation algorithm for color-weakness based on a new, objective criterion to compare normal observers and color-weak observers, using Riemann geometric properties of color spaces. The criterion is to match the color discrimination thresholds of average, normal observers and a colorweak observer. The method uses local and global isometry theory and provides the two groups of observers with the same color-difference experience. A one-dimensional compensation and simulation of color-weakness is shown as an application of the general approach to the Brettel color-blind model. The 2D and 3D compensations and simulations are illustrated in chromaticity planes and full color spaces.

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  • Preference of Color Images with Color-weak Correction Assessed by Color Anomalous and Normal Observers Reviewed

    Yi-Chun Chen, Yunge Guan, Tomoharu Ishikawa, Hiroaki Eto, Takehiro Nakatsue, Jinhui Chao, Miyoshi Ayama

    IDW'11: PROCEEDINGS OF THE 18TH INTERNATIONAL DISPLAY WORKSHOPS, VOLS 1-3   1863 - 1866   2011

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    In this study, we propose color images with color-weak correction on the basis of Mochizuki's model with an aim to achieve color customization in displays for color anomalous observers. The study results show that color-weak correction is effective in increasing the preference scores of protan and deutan observers.

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  • On curvature of color spaces and its implication" Reviewed

    Kohei Toko, J. Chao, R.Lenz

    Proceedings of CGIV2010, 5th European Conference on Colours in Graphics, Imaging, and Vision   393 - 398   2010.6

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  • KANSEI Evaluation of Color Images Corrected for Color Anomalies assessed by Deuteranomalous and Normal Observers Reviewed

    Yi-Chun Chen, Yuko Takahashi, Yunge Guan, Tomoharu Ishikawa, Hiroaki Eto, Takehiro Nakatsue, Jinhui Chao, Miyoshi Ayama

    IDW'10: PROCEEDINGS OF THE 17TH INTERNATIONAL DISPLAY WORKSHOPS, VOLS 1-3   363 - 366   2010

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    In order to examine whether the 'color-weak correction' is effective to the evaluation of KANSEI properties for color deficient observers, six kinds of test images corrected with 5 levels of color-weakness were assessed by normal and anomalous trichromat. In some images, the best performance is occurred at the strong degree of correction for deuteranomalous indicating the effectiveness of color-weak correction.

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  • Iwasawa decomposition and computational riemannian geometry Reviewed

    Reiner Lenz, Rika Mochizuki, Jinhui Chao

    Proceedings - International Conference on Pattern Recognition   4472 - 4475   2010

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    We investigate several topics related to manifold-techniques for signal processing. On the most general level we consider manifolds with a Riemannian Geometry. These manifolds are characterized by their inner products on the tangent spaces. We describe the connection between the symmetric positive-definite matrices defining these inner products and the Cartan and the Iwasawa decomposition of the general linear matrix groups. This decomposition gives rise to the decomposition of the inner product matrices into diagonal matrices and orthonormal and into diagonal and upper triangular matrices. Next we describe the estimation of the inner product matrices from measured data as an optimization process on the homogeneous space of upper triangular matrices. We show that the decomposition leads to simple forms of partial derivatives that are commonly used in optimization algorithms. Using the group theoretical parametrization ensures also that all intermediate estimates of the inner product matrix are symmetric and positive definite. Finally we apply the method to a problem from psychophysics where the color perception properties of an observer are characterized with the help of color matching experiments. We will show that measurements from color weak observers require the enforcement of the positive-definiteness of the matrix with the help of the manifold optimization technique. © 2010 IEEE.

    DOI： 10.1109/ICPR.2010.1086

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  • Color-reproduction using Riemann normal coordinates Reviewed

    Satoshi Ohshima, Rika Mochizuki, J.Chao, Reiner Lenz

    Computational Color Imaging, Second International Workshop, CCIW 2009   LCN-5646   140 - 149   2009.6

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  • An invariant metric on the manifold of second order moments Reviewed

    Reiner Lenz, Satoshi Oshima, Rika Mochizuki, Jinhui Chao

    2009 IEEE 12th International Conference on Computer Vision Workshops, ICCV Workshops 2009   1923 - 1930   2009

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    We introduce an invariant metric in the space of symmetric, positive definite matrices and illustrate the usage of this space together with this metric in color processing. For this metric closed-form expressions for the distances and the geodesics, (ie. the straight lines in this metric) are available and we show how to implement them in the case of matrices of size 2x2. In the first illustration we use the framework to investigate an interpolation problem related to the ellipses obtained in the measurements of just-noticeable-distances. For two such ellipses we use the metric to construct an interpolating sequence of ellipses between them. In the second application construct a texture descriptor for chromaticity distributions. We describe the probability distributions of chromaticity vectors by their matrices of second order moments. The distance between these matrices is independent under linear changes of the coordinate system in the chromaticity space and can therefore be used to define a distance between probability distributions that is independent of the coordinate system used. We illustrate this invariance, by way of an example, in the case of different white point corrections. ©2009 IEEE.

    DOI： 10.1109/ICCVW.2009.5457517

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  • Color-weak correction by discrimination threshold matching Reviewed

    Rika Mochizuki, Tatsuya Nakamura, Jinhui Chao, Reiner Lenz

    Proceedings of CGIV2008, 4th European Conference on Color in Graphics, Imaging, and Vision   208 - 213   2008.6

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  • Riemann geometry for color characterization and mapping Reviewed

    J. Chao, R. Lenz, Daisuke Matsumoto, Tatsuya Nakamura

    Proceedings of CGIV2008, 4th European Conference on Color in Graphics, Imaging, and Vision   277 - 282   2008.6

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  • A scale-space Reeb-graph of topological invariants of images and its applications to content identification Reviewed

    Jinhui Chao, Shintaro Suzuki

    Proceedings of Scale Space and Variational Methods in Computer Vision, SSVM-2007   4485   338 - 349   2007.6

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  • Security analysis of hyper/superelliptic curves against Weil descent attack Reviewed

    T. Iijima, J. Chao, S. Tsujii

    Proceedings of Mexican Conference on Information Security 2006, Proceedings of IEEE Computer Society   ( C-334 )   2006.6

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  • Lie代数曲面モデルの詳細度制御付きJava Viewer Reviewed

    相良直哉, 桑原明栄子, 牧野光則, 趙晋輝

    芸術科学会論文第21回NICOGRAPH論文コンテスト論文集   79 - 84   2005.11

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  • A Surface Model Based on a Fibre Bundle of 1-Parameter Groups of Hamiltonian Lie algebra Reviewed

    Jinhui Chao, Fangxing Lee

    Proceedings of ICIP2005   2005.9

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  • A Visually Interactive Deformation of Surfaces Defined by Linear Lie Algebra with Extraction of Invariants Reviewed

    Mariko Kaneko, Naoya Sagara, Mitsunori Makino, Jinhui Chao

    Proceedings of NOLTA2005   449 - 452   2005.9

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  • An Adaptive Mesh Generation for Surface Model Based on a Fibre Bundel of 1-Parameter Groups Reviewed

    Naoya Sagara, Mitsunori Makino, Jinhui Chao

    Proceedings of NOLTA2005   445 - 448   2005.9

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  • A scale-space Reeb-graph of topological invariants of images and its applications to copyright protection Reviewed

    Jinhui Chao, Shintaro Suzuki

    Proceedings of NOLTA2005   437 - 440   2005.9

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  • Improving the performance of Support Vector Machine by learning of feature maps Reviewed

    Ken Wada, Hironori Saito, Hiroshi Tsukahara, Jinhui Chao

    Special sesstion: Kernel Methods: Theory, Implementation and Application, ICNN & B05. Int. Conf. on NN and Brain, 2005, Bejing   2005.9

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  • 種数2の超楕円曲線に対するHarley加算アルゴリズムの一般型 Reviewed

    杉崎大樹, 松尾和人, 趙晋輝, 辻井重男

    情報通信研究機構季報.「情報セキュリティ特集」   51 ( 1/2 )   111 - 118   2005.4

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  • A generalized Harley Algorithm for genus two hyperelliptic curves Reviewed

    Hiroki Sugizaki, Kazuto Matsuo, Jinhui Chao, Shigeo Tsujii

    Journal of the National Institute of Information and Communication Technology   52 ( 1 )   111 - 117   2005.2

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  • An extension of GHS Weil descent attack Reviewed

    T Iijima, M Shimura, J Chao, S Tsujii

    IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES   E88A ( 1 )   97 - 104   2005.1

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG  

    The Weil descent attack, suggested by Frey. has been implemented by Gaudry, Hess and Smart (the so-called GHS attack) on elliptic curves over finite fields of characteristic two and with composite extension degrees. Recently, Diem presented a general treatment of the GHS attack to hyperelliptic curves over finite fields of arbitrary odd characteristics. This paper shows that Diem's approach can be extended to curves of which the function fields are cyclic Galois extensions. In particular, we show the existence of GHS Weil restriction, triviality of the kernel of GHS conorm-norm homomorphism, and lower/upper bounds of genera of the resulting curves.

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  • Improvements of addition algorithm on genus 3 hyperelliptic curves and their implementation Reviewed

    M Gonda, K Matsuo, K Aoki, J Chao, S Tsujii

    IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES   E88A ( 1 )   89 - 96   2005.1

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    Genus 3 hyperelliptic curve cryptosystems are capable of fast-encryption on a 64-bit CPU, because a 56-bit field is enough for their definition fields. Recently, Kuroki et al. proposed an extension of the Harley algorithm, which had been known as the fastest addition algorithm of divisor classes on genus 2 hyperelliptic curves, on genus 3 hyperelliptic curves and Pelzl et al. improved the algorithm. This paper shows an improvement of the Harley algorithm on genus 3 hyperelliptic curves using Toom's multiplication. The proposed algorithm takes only I + 70M for an addition and I + 71M for a doubling instead of I + 76M and I + 74M respectively, which are the best possible of the previous works, where I and M denote the required time for an inversion and a multiplication over the definition field respectively. This paper also shows 2 variations of the proposed algorithm in order to adapt the algorithm to various platforms. Moreover this paper discusses finite field arithmetic suitable for genus 3 hyperelliptic curve cryptosystems and shows implementation results of the proposed algorithms on a 64-bit CPU. The implementation results show a 160-bit scalar multiplication can be done within 172mus on a 64-bit CPU Alpha EV68 1.25 GHz.

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  • An Adaptive Mesh Generation of Surfaces Defined by Lie Algebra and its Visualization toward Intelligent Communication System Reviewed

    Naoya Sagara, Mitsunori Makino, Jinhui Chao

    Proceedings of IEEE TENCON2004   ( WD-05-5 )   2004.11

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  • Copyright tracing Using Invariants of Images Reviewed

    Jinhui Chao, Shintaro Suzuki

    Proceedings of IEEE International Conference on Image Processing, ICIP2004   2183 - 2186   2004.10

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  • A fibre bundle model of surfaces and its generalization Reviewed

    Jinhui Chao, Jongdae Kim

    Proceedings of the 17th International Conference on Pattern Recognition ICPR2004, Cambridge University   1   2004.8

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  • Analysis on Error Surface and Fast Algorithms of Multichannel Quadratic Volterra Adaptive Filters Reviewed

    J. Chao

    Proceedings of MWSCAS2004, IEEE Midwest Symposium on Circuits and Systems   2004.7

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  • A new surface model based On a fibre-bundle of 1-parameter groups Reviewed

    Jinhui Chao, Jong Dae Kim, Atsushi Nagakura

    Proceedings of International Conference on Multimedia and Expo. ICME2004   2004.6

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  • On definitions and construction of uniform color space Reviewed

    J Chao, Osugi, I, M Suzuki

    CGIV 2004: SECOND EUROPEAN CONFERENCE ON COLOR IN GRAPHICS, IMAGING, AND VISION - CONFERENCE PROCEEDINGS   55 - 60   2004

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    A uniform color space has, according to various literature, two definitions: (1) a global uniform color space is a space in which perceptional color difference agrees with the Euclidean distance; (2) a local uniform color space is a space in which discrimination elliptics/ellipsoids are unit circles/spheres everywhere. Unfortunately, it seemed that the relationship between them was not well understood and uniform color spaces have been constructed following these two different definitions independently. In this paper, we discuss the issue from a point of view of global Riemannian geometry and show that these two uniform color spaces are actually equivalent.
    Giving perceptive metric in a color space, an efficient algorithm is shown to construct a "pollar coordinate system" for the color space, which is the image of the pollar coordinate system in its uniform space.

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  • Baby step giant step algorithms in point counting of hyperelliptic curves Reviewed

    K Matsuo, JH Chao, S Tsujii

    IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES   E86A ( 5 )   1127 - 1134   2003.5

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    Counting the number of points of Jacobian varieties of hyperelliptic curves over finite fields is necessary for construction of hyperelliptic curve cryptosystems. Recently Gaudry and Harley proposed a practical scheme for point counting of hyperelliptic curves. Their scheme consists of two parts: firstly to compute the residue modulo a positive integer m of the order of a given Jacobian variety, and then search for the order by a square-root algorithm. In particular, the parallelized Pollard's lambda-method was used as the square-root algorithm, which took 50CPU days to compute an order of 127 bits. This paper shows a new variation of the baby step giant step algorithm to improve the square-root algorithm part in the Gaudry-Harley scheme. With knowledge of the residue modulo m of the characteristic polynomial of the Frobenius endomorphism of a Jacobian variety, the proposed algorithm provides a speed up by a factor m, instead of rootm in square-root algorithms. Moreover, implementation results of the proposed algorithm is presented including a 135-bit prime order computed about 15 hours on Alpha 21264/667 MHz and a 160-bit order.

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  • Reconstruction Algorithm for Convex Polygonal Objects from RCS Values Reviewed

    Kenji Ono, Hiroshi Shirai, Mitsunori Makino, Jinhui Chao

    Proceedings of the Progress in Electromagnetics Research Sysmposium 2003 (PIERS2003)   2003.1

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  • Analysis of Volterra ADF and Fast RLS algorithm Reviewed

    Jinhui Chao

    Proceeding of The 6th International Conference on Signal Processing (ICSP02)   2002.9

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  • Meshing technology with quality assurance for curved surfaces defined by linear Lie algebra Reviewed

    Shin-Ichi Kawano, Mitsunori Makino, Shinya Ishii, Jinhui Chao

    Systems and Computers in Japan   33 ( 10 )   64 - 73   2002.9

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：John Wiley \& Sons, Inc., ISSN 0882-1666  

    A high-quality triangular meshing is proposed for surfaces defined by linear Lie algebra. It is known that linear Lie algebra can define a variety of surfaces including a certain type of nonalgebraic surfaces as well as algebraic ones. Therefore, it is also applicable to the field of computer vision. However, in a case of visualizing efficiently such surfaces by computer graphics, an adaptive approximation of the surfaces is necessary. In this paper, by considering fluctuation of the normal vector in the neighborhood of an obtained point on the surface, an adaptive meshing algorithm is presented, which holds high-quality approximation of the object. © 2002 Wiley Periodicals, Inc. Syst. Comp. Jpn.

    DOI： 10.1002/scj.1158

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  • On construction of uniform color spaces Reviewed

    M. Suzuki, J. Chao

    IEICE Transactions on Fundamentals   E85-A, ( 9 )   2097 - 2106   2002.9

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  • Meshing Technology with Quality Assurance for Curved Surfaces Defined byLinear Lie Algebra Reviewed

    Shin-ichi Kawano, Mitsunori Makino, Shinya Ishii, Jinhui Chao

    Systems and Computers in Japan   33 ( 10 )   64 - 73   2002.9

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  • Invariant Extraction and Segmentation of 3D Objects with Linear Lie Algebra Model Reviewed

    Masaki Suzuki, Jinhui Chao

    IEICE Trans. on Information Systems (D)   E85-D, ( 8 )   1306 - 1313   2002.8

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  • Generalization Performance of pyramid network and its generalization performance Reviewed

    Miho Hoshino, Jinhui Chao

    Proceeding of IJCNN2002   2002.7

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  • Analysis and fast RLS algorithm of quadratic Volterra adaptive filters Reviewed

    Jinhui Chao

    Proceedings of 2002 IEEE 14-th International Conference on Digital|rn|Signal Processing,, DSP2002   II   749 - 752   2002.7

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  • Determination of Endomorphism Type of Jacobian Varieties of Hyperelliptic Curves over Finite fields Reviewed

    Kazuto Matsuo, Jinhui Chao, Shigeo Tsujii

    Transactions of IEICE, Foundamentals, (A)   J85-A ( 6 )   677 - 690   2002.6

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  • 側抑制による変位モデルを用いた幾何学錯視の実現と主観的視空間の内在幾何学'' Reviewed

    趙晋輝, 宮田泰彦, 吉田真一, 鈴木正樹, 岸上徹

    電子情報通信学会論文誌(A)   J85-A ( 4 )   481 - 489,   2002.4

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  • Invariant extraction and segmentation of 3D objects using linear lie algebra model Reviewed

    JH Chao, M Suzuki

    2002 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOL I, PROCEEDINGS   205 - 208   2002

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    This paper first presents robust algorithms to extract invariants of the linear Lie algebra model from 3D objects. In particular, an extended 3D Hough transform is presented to extract accurate estimates of the normal vectors. The Least square fitting is used to find normal vectors and representation matrices. Then an algorithm of segmentation for 3D objects is shown using the invariants of the linear Lie algebra. Both distributions of invariants, in the invariant space and on the object surface, are used to produce clusters and edge detection.

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  • A fast convergence algorithm of Volterra adaptive filters Reviewed

    JH Chao, S Uno, T Kubota, A Inomata

    ELECTRONICS AND COMMUNICATIONS IN JAPAN PART III-FUNDAMENTAL ELECTRONIC SCIENCE   85 ( 4 )   56 - 65   2002

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    Volterra nonlinear adaptive filters are known to be superior, having characteristics of general applicability to nonlinear systems and global convergence which is guaranteed by a gradient adaptive calculating algorithm. How ever, such convergence can become slow and unstable easily when Volterra nuclei are dense. In this paper, the authors have derived theoretically important properties of the error curve shape of Gaussian signal inputs in a second-order Volterra nonlinear adaptive filter. On the basis of these analytical results, a fast convergence algorithm using a corrected direction and a renewed amplitude of an optimal weighting coefficient vector for white signal inputs and colored signal inputs is proposed and its efficacy is verified by computer simulations. (C) 2001 Scripta Technica.

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  • An improved baby step giant step algorithm for point counting of hyperelliptic curves over finite fields Reviewed

    K Matsuo, JH Chao, S Tsujii

    ALGORITHMIC NUMBER THEORY   2369   461 - 474   2002

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    Counting the number of points of Jacobian varieties of hyperelliptic curves over finite fields is necessary for construction of hyperelliptic curve cryptosystems. Recently Gaudry and Harley proposed a practical algorithm for point counting of hyperelliptic curves. Their algorithm consists of two parts: firstly to compute the residue modulo an integer m of the order of a given Jacobian variety, and then search for the order by a square-root algorithm. In particular, the parallelized Pollard's lambda-method was used as the square-root algorithm, which took 50CPU days to compute an order of 127 bits.
    This paper shows a new variation of the baby step giant step algorithm to improve the square-root algorithm part in the Gaudry-Harley algorithm. With knowledge of the residue modulo m of the characteristic polynomial of the Frobenius endomorphism. of a Jacobian variety, the proposed algorithm provides a speed up by a factor m, instead of rootm in square-root algorithms. Moreover, implementation results of the proposed algorithm is presented including a 135-bit prime order computed in 16 hours on Alpha 21264/667 MHz.

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  • 3次元Lie代数曲面モデルの適応的高品質メッシュ化に関する研究'

    佐野太保, 牧野光則, 趙晋輝

    シミュレーション学会誌（解説論文）   Vol.20 ( No.3 )   67 - 74   2001.9

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  • 井草不変量を用いた超楕円曲線暗号の構成について' Reviewed

    松尾和人, 芳賀智之, 趙 晋輝, 辻井重男

    電子情報通信学会論文誌(A)   Vol.J84-A ( No.8 )   1045 - 1053   2001.8

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  • A Multilayer RBF network and its supervised learning Reviewed

    Jinhui Chao, Miho Hoshino, Tasuku Kitamura, Ken Masuda

    Proceeding of IJCNN2001, Washinton DC   1195 - 2000   2001.7

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  • A new pyramid network and its generalization performance Reviewed

    Jinhui Chao, Miho Hoshino, Tasuku Kitamura, Ken Masuda

    Proceeding of IJCNN2001   2811 - 2816   2001.7

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  • Error surface analysis and fast RLS adaptive algorithm of quadratic Volterra ADF Reviewed

    Jinhui Chao, Atsushi Inomata, Tomonori Kubota, Shinpei Uno

    Proceeding of NSIP2001, CD Rom, the 2001 IEEE-EURASIP Nonlinear Signal|rn|and Image Processing Workshop   ( TuePmOr6 )   2001.6

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  • A multilayer RBF network and its supervised learning Reviewed

    JH Chao, A Hoshino, T Kitamura, T Masuda

    8TH INTERNATIONAL CONFERENCE ON NEURAL INFORMATION PROCESSING, VOLS 1-3, PROCEEDING   3   1366 - 1371   2001

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    In this paper a general form of multilayer RBF networks is introduced. A complete supervised training rules for parameters are also presented. To achieve global convergence we apply a global optimazation algorithm called magic-brush method. This network is then generalized to a pyramid network. Simulations shown higher representation and generalization capability of the proposed networks comparing with the RBF and multilayer networks with sigmoid activation functions.

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  • A. high quality mesh generation for surfaces defined by Hamiltonian Lie algebra Reviewed

    Y Yamamoto, H Sano, M Makino, J Chao

    IEEE REGION 10 INTERNATIONAL CONFERENCE ON ELECTRICAL AND ELECTRONIC TECHNOLOGY, VOLS 1 AND 2   226 - 231   2001

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    Recently, the research on computer graphics (CG) has been actively studied and developed. Namely, many surface/solid models have been proposed in the field of computer aided geometric design as well as the one of CG. Since it is difficult to visualize the complex shape exactly, an approximation by generating a set of meshes is usually used. Therefore it is important to guarantee the quality of the approximation in consideration of the computational cost.
    In this paper, an adaptive mesh generation algorithm will be proposed for a surface defined by Lie algebra, which is useful in the field of computer vision. The proposed algorithm considers the variation of normal vectors around the calculated point on the surface. By the method a set of meshes for the surface can be generated adaptively and automatically with high quality at low computational cost.

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  • 線形リー代数による曲面に対する品質保証付きメッシュ作成技法 Reviewed

    河野眞一, 牧野光則, 石井進也, 趙晋輝

    電子情報通信学会論文誌（D-11）   J83-D-II ( 12 )   2707 - 2715   2000.12

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  • A new model of animation using Reeb graph

    M.Suzuki, H.Tamakawa, M.Makino, J.Chao

    Proc. Nolta2000, Dresden   2   603 - 607   2000.10

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  • Riemannian geometric modeling of subjective color space in polychromatic perception Reviewed

    J.Chao M.Suzuki

    Proc. Of international Conterence on Color in Graphics and Image Processing, CGIP2K   201 - 205   2000.10

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  • Riemannian geometric modelling of subjective color space in polychromatic perception

    Masaki Suzuki, Jinhui Chao

    Proc. Nolta2000, Dresden   2   119 - 123   2000.10

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  • 接と法ベクトル場の線形リー代数を用いた物体の不変な表現と認識方式 Reviewed

    趙晋輝, 鳥谷彰, 箕輪研二

    電子情報通信学会論文誌（D-11）   J83-D-II ( 9 )   1870 - 1878   2000.9

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  • Fast RLS algorithm for quadratic Volterra adaptive filters Reviewed

    J.Chao, T.Kubota, S.Uno

    Proc. Of Eusipco2000   142 - 145   2000.9

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  • Hierarchical invariant representation of spatial topology of 3D objects and its application to object recogntion Reviewed

    J.Chao, M.Nakajima, S.Okada

    Proc. Of ICPR' 2000   1   920 - 923   2000.9

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  • Fast construction of secure discrete logarithm problems over jacobian varieties Reviewed

    J.Chao, K.Matuo, S.Tsujii

    Information Security for Global Information Infrastructures   241 - 251   2000.8

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Proc. Of Sixteenth Annual Working Conference On Information Security Qing Sihan, Eloff Jan H.P.(Edt) Kluwer Academic Pub  

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  • Riemannian geometric modeling of subjective color space using lateral inhibition network Reviewed

    M.Suzuki J.Chao

    Proc. Of The Fourth Assian Fuzzy Systems Symposium (AFSS2000)   1   115 - 119   2000.7

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  • 立方特異単体による3次元物体の復元と位相不変量による認識 Reviewed

    趙晋輝, 中山丈二, 原健司, 中島将揮

    電子情報通信学会論文誌(D-II)   J83-D-II ( 5 )   1215 - 1223   2000.5

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  • Volterra形非線形FIR適応フィルタの高速収束算法に関する考察 Reviewed

    趙晋輝, 宇野晋平, 久保田智規, 猪股篤

    電子情報通信学会論文誌(A)   J83-A ( 4 )   370 - 378   2000.4

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  • Construction of hyperelliptic curves with CM and its application to cryptosystems Reviewed

    JH Chao, K Matsuo, H Kawashiro, S Tsujii

    ADVANCES IN CRYPTOLOGY ASIACRYPT 2000, PROCEEDINGS   1976   259 - 273   2000

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    Construction of secure hyperelliptic curves is of most important yet most difficult problem in design of cryptosystems based on the discrete logarithm problems on hyperelliptic curves. Presently the only accessible approach is to use CM curves. However, to find models of the CM curves is nontrivial. The popular approach uses theta functions to derive a projective embedding of the Jacobian varieties, which needs to calculate the theta functions to very high precision. As we show in this paper, it costs computation time of an exponential function in the discriminant of the CM field. This paper presents new algorithms to find explicit models of hyperelliptic curves with CM. Algorithms for CM test of Jacobian varieties of algebraic curves and to lift from small finite fields both the models and the invariants of CM curves are presented. We also show that the proposed algorithm for invariants lifting has complexity of a polynomial time in the discriminant of the CM field.

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  • CMテストとリフティングによる安全な楕円暗号系の構成法 Reviewed

    趙晋輝, 側高幸治, 中村理, 辻井重男

    電子情報通信学会論文誌(A)   J82-A-8   1261 - 1268   1999.8

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  • Volterra形非線型適応フィルタの誤差曲面と収束特性の解析 Reviewed

    趙晋輝, 猪股篤

    電子情報通信学会論文誌(A)   J82-A-6   809 - 816   1999.6

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  • Generation of 3D objects Using Lie Algebra Models Based on Curvarture+Analysis and Comperison with B-splline fitting Reviewed

    J.Chao, J.Ura

    Proceedings of 1999 International Conference on Image Processing , ICIP' 99   4   366 - 370   1999.6

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  • Invariant Recognition and Segmentation of 3D Objects Using Lie Algebra Models Reviewed

    J.Chao, S.Ishii

    Proceedings of 1999 International Conference on Image Processing , ICIP' 99   1   550 - 554   1999.6

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  • On Non-Uniformness Of Color Spaces In Polydhromatic Perception Reviewed

    J.Chao, M.Suzuki

    Proceedings of 1999 International Conference on Image Processing, ICIP' 99   4   314 - 318   1999.6

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  • Construction of secure ellipic curves with CM tests and lifting Reviewed

    J.Chao, O.Nakamurra, K.Sobataka, S.Tsujii

    K. Ohta d. Pei(eds.)   1514   95 - 109   1998.10

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  • Convergence analysis and fast converging algoring algorithms for Volterra ADF Reviewed

    J.Chao, A.Inomata, S.Uno

    Procedings of EUROSISCO' 98   1998.8

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  • Invariaant Object Repressentation and Recognition Using Lie Algebrras of Tangential and Normal Vector Fields Reviewed

    J.Chao, A.Karasudani, T.Shimada, K.Minowa

    Proc. Of IEEE International Workshop on Model-Based 3D Image Analysis   3 - 12   1998.1

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  • Efficient construction of secure hyperelliptic dixcrete logarthm problems Reviewed

    J.Chao, N.Matsuda, S.Tsujii

    Informations and Communication SecurityY. Han, T. Okamoto, S. Qing   1334   292 - 301   1997.11

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  • Realization of gemetric illusion and gemetry of visual with neural network Reviewed

    J.Chao Y.Miyata, S.Yoshida

    Artificial Neural Networks-ICANN97   1327   255 - 260   1997.10

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  • Invariant object representation and recognition using linear Lie algebra of visual vector fields Reviewed

    J.Chao, A.Karasudani, K.Minowa

    Springer-Verlag Lecture Notes Computer Sicience   1311   11 - 284-291   1997.9

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  • Convergence analysis of Volterra adapteve filters Reviewed

    J.Chao, A.Inonata

    Proceedings of ISCAS'97   IV   2477 - 2480   1997.6

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  • Design of secure elliptic curves over extension fields with CM field method Reviewed

    J.Chao, K.Harada, N.Matsuda, S.Tsujii

    Proceedings of PRAGO-CRYPTO'96   93 - 108   1996.10

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  • Cuicial singular simplex model for 3D objects and Fast computation of homology guoups Reviewed

    J.Chao, J.Nanayama

    Proceedings of the 13th International conference on pattern recognition   D-190-195   1996.5

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  • Realization of Geometric Illusions and Investigation of Instrinsic Geometry of Visual Space Through Neural Networks Reviewed

    Jinhui Chao, Miyata Yasuhiko, Shigeo Tsujii

    Proceedings of International Conference on Neural Information Processing(ICONIP'95)   690 - 693   1995.10

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  • Design of cryptographically secure elliptic curves over extention fields with CM field method Reviewed

    Jinhui Chao, Kohji Harada, Shigeo Tsujii

    Proceedings of The Third International Confenrence on Finite Fields and Application   ( 69 )   1995.7

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  • Invariant representation and recognition of 3D objects with Lie algebra of perceptional vector fields Reviewed

    Jinhui Chao, Akira Karasudani, Kenji Minowa, Shigeo Tsujii

    Proceedings of IEEE International Symposium on Nonlinear Signal and Image Processing(NSIP'95)   Ⅱ   690 - 693   1995.6

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  • 安定性と大域収束性を保証するIIR型適応アルゴリズムの一提案 Reviewed

    趙晋輝, 佐藤輝幸, 辻井重男

    電子情報通信学会論文誌(A)   J78-A ( 2 )   227 - 235   1995.2

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  • 勾配型適応アルゴリズムの統一的考察と一次、二次モーメントの収束解析 Reviewed

    趙晋輝, 川辺忍, 辻井重男

    電子情報通信学会論文誌(A)   J78-A ( 1 )   21 - 29   1995.1

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  • A New IIR Adaptive Echo Canceler: GIVE Reviewed

    Jihui Chao, Shinobu Kawabe, Shigeo Tsujii

    IEEE Journal on selected Areas in Communications   12 ( 9 )   1530 - 1529   1994.12

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  • On Design of Elliptic Curves with Controllable Lower Boundary to Reduction Attacks Reviewed

    Jihui Chao, Kazuo Tanada, Shigeo Tsujii

    Advances in Cryptology, CRYPTO-94, Lecture Notes in Computer Science   839   50 - 56   1994.9

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  • New Results on Stability Theory of Time-varying Linear Systems Reviewed

    Jinhui Chao, Teru Sato, Kohichi Sakaniwa, Shigeo Tsujii

    Proceedings of IEEE International Symposium on Circuits and Systems(ISCAS'94)   Ⅴ   245 - 248   1994.5

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  • Convergence Analysis of Gradient Adaptive Alogorithms Reviewed

    Jinhui Chao, Shinobu Kawabe, Shigeo Tsujii

    Proceedings of IEEE International Symposium on Circuits and Systems(ISCAS'94)   Ⅱ   41 - 44   1994.5

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  • Aquisition of Global Topology for 3D Objects Through Local Competition Reviewed

    Jinhui Chao, Kenji Minowa, Shigeo Tsujii

    Proceedings of European Conference on Artificial Neural Networks(ICANN'94)   1460 - 1463   1994.4

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  • A Stable and Globally Convergent IIR OEM Adaptive Filter Reviewed

    Jinhui Chao, Teru Sato, Kohichi Sakaniwa, Shigeo Tsujii

    Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, (ICASSP'94)   Ⅲ   101 - 104   1994.4

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  • Does the brain have a Lie algebra machine cortex? -Invariant Recognition of Objects Using Lie Algebra of Perceptional Vector Fields Reviewed

    Jinhui Chao, Kenji Minowa, Shigeo Tsujii

    Proceedings of 1991 International Symposium on Nonlinear Theory and Applications(NOLTA'93)   1347 - 1350   1993.12

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  • A Stable and Globally Convergent IIR OEM ADF Reviewed

    Jinhui Chao, Teru Sato, Kohichi Sakaniwa, Shigeo Tsujii

    Proceedings of IEEE International Workshop on Intellegent Signal Processing and Communication Systems(IS-PACS'93)   132 - 137   1993.11

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  • An artificial neural network which can see geometric illusions in human vision Reviewed

    Jinhui Chao, Tohru Kishigami, Kenji Minowa, Shigeo Tsujii

    Proceedings of 1991 IEEE and INNS Joint International Conference on Neural Networks(IJCANN'93)   2209 - 2212   1993.11

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  • On Discrete Logarithm Problems over Elliptic Curves with p-divisible Groups Reviewed

    Jinhui Chao, Hiroyuki Ikemoto, Katsuo Tanata, Shigeo Tsujii

    Proceeding of the 1993 Japan-Korea Workshop on Cryptography and Information Security(JW-CIS93)   99 - 104   1993.10

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  • A SIMPLE ID-BASED SCHEME FOR KEY SHARING Reviewed

    S TSUJII, JH CHAO, K ARAKI

    IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS   11 ( 5 )   730 - 734   1993.6

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    This paper proposes a new, noninteractive ID-based key sharing scheme based on a method of iterative elimination of additive random numbers.

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  • Unsupervised Learning of 3D Objects Conserving Global Topological Order Reviewed

    Jihui Chao, Kenji Minowa, Shigeo Tsujii

    Transactions of the IEICE   E76-A ( 5 )   749 - 753   1993.5

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  • Illusions in Human Vision and Artificial Neural Networks Reviewed

    Jinhui Chao, Kenji Minowa, Kishigami, Shigeo Tsujii

    Proceedings of 1992 IEEE Asia-Pacific Conference on Circuits and Systems   148 - 151   1992.12

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  • Global Self-organization for 3D Objects with Local Competitive Learning Reviewed

    Jinhui Chao, Kenji Minowa, Shigeo Tsujii

    Proceedings of 1992 IEEE and INNS Joint International Conference on Neual Networks(IJCNN'92)   Ⅱ of Ⅲ   722 - 727   1992.11

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  • A NEW GLOBAL OPTIMIZATION METHOD - ROLLING-STONE SCHEME AND ITS APPLICATION TO SUPERVISED LEARNING OF MULTILAYER PERCEPTRONS Reviewed

    J CHAO, W RATANASUWAN, S TSUJII

    ARTIFICIAL NEURAL NETWORKS, 2, VOLS 1 AND 2   2, Ⅰ   395 - 398   1992

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  • REALIZATION OF GEOMETRIC ILLUSIONS IN HUMAN VISION WITH ARTIFICIAL NEURAL NETWORKS Reviewed

    JH CHAO, T KISHIGAMI, K MINOWA, S TSUJII

    IEEE INTERNATIONAL CONFERENCE ON SYSTEMS ENGINEERING   511 - 514   1992

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  • A NEW IIR ADAPTIVE ECHO CANCELER - GIVE Reviewed

    JH CHAO, S KAWABE, S TSUJII

    IEEE INTERNATIONAL CONFERENCE ON SYSTEMS ENGINEERING   547 - 551   1992

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  • CONVERGENCE ANALYSIS OF GRADIENT ADAPTIVE ALGORITHMS FOR ARBITRARY INPUTS WITHOUT INDEPENDENCE ASSUMPTION Reviewed

    JH CHAO, S KAWABE, S TSUJII

    IEEE INTERNATIONAL CONFERENCE ON SYSTEMS ENGINEERING   556 - 559   1992

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  • UNSUPERVISED LEARNING OF 3D OBJECTS CONSERVING GLOBAL TOPOLOGICAL ORDER Reviewed

    J CHAO, K MINOWA, S TSUJII

    IEEE INTERNATIONAL CONFERENCE ON SYSTEMS ENGINEERING   24 - 27   1992

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  • On How to Find Minima in Finite Times of Search for Multi-layer Perceptron Training Reviewed

    Jinhui Chao, Wijak Ratanaswan, Shigeo Tsujii

    Internatiotnal Joint Conference on Neural Networks   1991.11

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  • A New ID-Based Key Sharing System Reviewed

    Shigeo Tsujii, Jinhui Chao

    Proceedings of CRYPTO'91   6 - 18-26   1991.8

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  • A STABLE AND DISTORTION-FREE IIR ECHO AND HOWLING CANCELER Reviewed

    JH CHAO, S TSUJII

    IEEE TRANSACTIONS ON SIGNAL PROCESSING   39 ( 8 )   1812 - 1821   1991.8

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    The use of an IIR echo canceler and howling canceler with series-parallel structure will result in signal distortion during "double-talk" periods after stoppage of adaptation. Current methods to eliminate this distortion, by switching to a fixed parallel structure or by cascading an equalizer, require a stability test which costs O(N2) multiplications per sampling period.
    This paper proposes a new configuration for an IIR adaptive echo and howling canceler, which consists of a 2-channel maximum entropy lattice filter and its inverse filter. The echo is canceled by the adaptive lattice filter, while the signal distortion is eliminated by the inverse lattice. With stability guaranteed without the necessity of testing, the new structure costs O(N) multiplications per sampling period. The new algorithm can also be greatly simplified for white input cases.

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  • Adaptive Crosstalk Cancellation Based on Recursive Prediction Error Method Reviewed

    Ping Huang, Jinhui Chao, Shigeo Tsujii

    The Transactions of the IEICE   E74 ( 7 )   1927 - 1934   1991.7

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  • A New IIR Adaptive Echo Canceler: GIVE Reviewed

    Jinhui Chao, Shinobu Kawabe, Shigeo Tsujii

    Proceedings of Joint Technical Conference on Circuits/Systems, Computers and Communications   82 - 87   1991.7

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  • Convergence Analysis of Gradient Adaptive Algorithms for Arbitrary Inputs Reviewed

    Jinhui Chao, Shinobu Kawabe, Shigeo Tsujii

    International Symp. on Electronics and Information Sciences Digest   15 - 1-8   1991.6

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  • 多重チャネル間の漏話除去に関する考察 Reviewed

    黄平, 趙晋輝, 辻井重男

    電子情報通信学会論文誌   J74-A ( 1 )   136 - 138   1991.1

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  • A New Global Optimization Method and Supervised Learning of Multi-layer Neural Networks Reviewed

    Jinhui Chao, Wijak Ratanaswan, Shigeo Tsujii

    The Transactions of the IEICE   E73 ( 11 )   1796 - 1799   1990.11

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  • A FAST ADAPTIVE FILTER ALGORITHM USING EIGENVALUE RECIPROCALS AS STEPSIZES Reviewed

    JH CHAO, H PEREZ, SG TSUJII

    IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING   38 ( 8 )   1343 - 1352   1990.8

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  • Stability Theory of Linear Discrete Time-varying Systems Reviewed

    Jinhui Chao, Kohichi Sakaniwa, Shigeo Tsujii

    ISSPA'90 Proceedings   295 - 298   1990.8

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  • 適応信号処理における跳躍アルゴリズムの提案 Reviewed

    趙晋輝, エクトルペレス, 辻井重男

    電子情報通信学会論文誌   J73-A ( 7 )   1196 - 1206   1990.7

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  • フィードバックを考慮した音響系エコーハウリングキャンセラに関する検討 Reviewed

    趙晋輝, 黄平, 辻井重男

    電子情報通信学会論文誌   J72-A ( 11 )   1715 - 1723   1989.11

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  • ESTIMATION AND SYNTHESIS OF SINGULAR VECTOR AUTOREGRESSIVE PROCESSES OVER COMPONENT SPACES Reviewed

    JH CHAO, SG TSUJII

    SIGNAL PROCESSING   18 ( 3 )   313 - 326   1989.11

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  • A NEW CONFIGURATION FOR ECHO CANCELLER ADAPTABLE DURING DOUBLE TALK PERIODS Reviewed

    JH CHAO, S TSUJII

    IEEE TRANSACTIONS ON COMMUNICATIONS   37 ( 9 )   969 - 974   1989.9

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  • EXACTLY STABLE IIR MIMO IDENTIFICATION ALGORITHMS Reviewed

    JH CHAO, SG TSUJII

    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS   36 ( 6 )   880 - 884   1989.6

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  • Stability of Time-Varying Systems with Adaptively Estimated Transfer Function Reviewed

    Jinhui Chao, Kohichi Sakaniwa, Shigeo Tsujii

    Electronics Letters   25 ( 7 )   481 - 482   1989.3

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  • A New IIR Adaptive Filter Structure Realized in Parallel Form with Prefiltering Reviewed

    Jinhui Chao, Hector Perez, Shigeo Tsujii

    International Conference on Communication Systems   1   101 - 105   1988.11

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  • A Fast Block Adaptive Filter Algorithm Using Eigenvalues Reciprocals as Stepsizes Reviewed

    Jinhui Chao, Hector Perez, Shigeo Tsujii

    International Conference on Communication Systems   1   424 - 428   1988.11

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  • On Stability of Timevarying Systems - When the Transfer Function is Adaptively Estimated Reviewed

    Jinhui Chao, Shigeo Tsujii, Kohichi Sakaniwa

    International Symposium on Information Theory   THB6   191 - 192   1988.6

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  • A Fast Adaptive Algorithm Using Eigenvalues Reciprocals as Stepsizes Reviewed

    Jinhui Chao, Hector Perez, Shigeo Tsujii

    International Symposium on Information Theory   MC6   55   1988.6

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  • A Stable and Distortion-free Echo and Howling Canceler Reviewed

    Jinhui Chao, Shigeo Tsujii

    ICASSP Proceedings   D6-19   1620 - 1623   1988.4

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  • ダブルトーク期間において制御可能な3端子対エコーキャンセラの提案 Reviewed

    趙晋輝, 辻井重男

    電子情報通信学会論文誌   J71-A ( 2 )   379 - 386   1988.2

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  • Estimation of Singular Vector AR Processes over Components Spaces Reviewed

    Jinhui Chao, Shigeo Tsujii

    Asilomar Conference on Signals, Systems and Computers   MP2-4   1988.1

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  • NEW CONFIGURATION OF ECHO CANCELER ADAPTABLE DURING DOUBLE TALK Reviewed

    J CHAO, S TSUJII

    ELECTRONICS LETTERS   23 ( 24 )   1314 - 1316   1987.11

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  • A New Configuration for Echo Canceler Adaptable during Double Talk Reviewed

    Jinhui Chao, Shigeo Tsujii

    GLOBECOM'87 Conference Record   2   1361 - 1365   1987.11

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  • 2-Channel Lattice Filterを利用した新しいIIR形適応アルゴリズム Reviewed

    黒沢馨, 趙晋輝, 辻井重男

    電子通信学会論文誌   J68-B ( 11 )   1223 - 1228   1985.11

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  • An IIR Type Echo Canceler Using 2-channel Lattice Filter Reviewed

    Kaoru Kurosawa, Jinhui Chao, Shigeo Tsujii

    GLOBECOM'84 Conference Record   1   203 - 208   1984.11

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Books

  • 暗号理論と楕円曲線

    辻井重男, 笠原正雄編著（ Role： Joint author）

    森北出版  2008.9 

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    Total pages：251   Responsible for pages：61   Language：Japanese   Book type：Scholarly book

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  • 情報セキュリティー暗号・認証・倫理まで

    辻井重男, 笠原正雄（ Role： Joint author）

    昭晃堂  2003.1 

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    Total pages：213   Responsible for pages：8   Language：Japanese   Book type：Scholarly book

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  • 「情報工学辞典」「楕円曲線」

    趙晋輝（ Role： Joint author）

    2001.4 

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    Language：Japanese   Book type：Dictionary, encyclopedia

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  • 適応信号処理(209p.) 5, 6章分担

    辻井, 久保田, 古川（ Role： Sole author）

    昭晃堂  1995.4 

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  • 第5章、適応アルゴリズムの拡張、第1節 跳躍アルゴリズム、第6章、ニューラルネットワーク

    井重（ Role： Sole author）

    昭晃堂  1995.4 

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    Responsible for pages：107-113,145-207   Language：Japanese   Book type：Scholarly book

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  • ディジタル信号処理ハンドブック(525p.) 10章分担

    編集委員会（ Role： Sole author）

    オーム社  1993.4 

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  • デジタル信号処理ハンドブック第10章、適応信号処理

    分担執筆（ Role： Sole author）

    オーム社  1993.1 

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    Responsible for pages：193-201   Language：Japanese   Book type：Scholarly book

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MISC

  • R.Avanzi, C.Doche, T.Lange, K.Nguyen and F. Vercauteren : Handbook of hyperelliptic curve cryptography. Reviewed

    趙晋輝, 松尾和人, 百瀬文之

    数学   61 ( 4 )   433 - 436   2009.10

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  • Recent topics on hyperelliptic cryptography Invited Reviewed

    Jinhui Chao

    RIMS Kokyuroku, Kyoto University ''Algebraic Aspects of Coding Theory and Cryptography"   1420   174 - 182   2005.4

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  • 代数曲線上の公開鍵暗号 Invited Reviewed

    松尾和人, 有田正剛

    情報処理、特集「電子社会を推進する暗号技術」   45 ( 11 )   1114 - 1116   2004.11

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  • 代数曲線暗号 Reviewed

    松尾和人, 有田剛, 趙晋輝

    日本応用数理学会論文誌   13 ( 2 )   231 - 243   2003.2

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    This paper is a survey on the state-of-the-art of cryptosystems based on the discrete logarithm over algebraic curves on finite fields. The issue on security of these systems against various attacks are firstly considered. Then fast addition algorithms and efficient point counting algorithms for Jacobian varieties of algebraic curves are discussed. These algorithms, although are necessary for construction of algebraic curve cryptosystems, had not been available until very recently. This paper also surveys the known results and the recent advances of related number theoretic algorithms and new developments in construction of algebraic curve cryptosystems.

    DOI： 10.11540/jsiamt.13.2_231

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  • 情報通信工学における群論と不変量理論' Invited

    趙晋輝

    電子情報通信学会学会誌（解説論文）   Vol.84 ( No.6 )   379 - 383   2001.6

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  • 楕円暗号へのガイダンス Invited

    辻井重男, 趙晋輝

    電子情報通信学会論文誌(A)   J82-A-8   1200 - 1211   1999.8

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Presentations

  • GHS攻撃の対象となる被覆曲線を持つ楕円曲線の同型類に関する考察」|rn|ISEC2015、3月2日

    細萱, 飯島, 志村, 趙

    電子情報通信学会情報セキュリティ研究会  2015.3 

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  • 色弁別閾値を用いた個人認証方式

    小田倉健介, 趙晋輝

    バイオメトリックス研究会 (BioX)  2015.3 

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  • URL埋め込み型クロスサイトスクリプティング攻撃の特徴検出

    海寳貴人, 松田 健, 園田道夫, 趙 晋輝

    情報処理学会第77回全国大会 6S-04  2015.3 

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  • 線形分類器によるクロスサイトスクリプティング(XSS)の検知に関する考察

    梅原章宏, 松田 健, 園田道夫, 趙 晋輝

    情報処理学会第77回全国大会 6S-05  2015.3 

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  • 潜在曲線を用いた着色によるSQLインジェクション攻撃の特徴の可視化

    藤岡あやか, 松田 健, 園田道夫, 趙 晋輝

    情報処理学会第77回全国大会 6S-06  2015.3 

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  • GHS攻撃の対象となる奇標数素数次数拡大体上の楕円曲線 その2

    飯島努, 趙晋輝

    SCIS2015 暗号と情報セキュリティシンポジウム、|rn|1F2-1.  2015.1 

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  • GHS攻撃の対象となる奇標数素数次数拡大体上の楕円曲線

    飯島努, 趙晋輝

    情報セキュリティ研究会（ISEC）  2014.11 

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  • 単体写像を用いたディスプレイプロファイルの構築と色再現への応用

    山本 真史, 趙 晋輝

    第29回信号処理シンポジウム2015 論文集、P3-8  2014.10 

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  • ゼータ分布を用いたSQLインジェクション攻撃を検知する方法について

    前田すみれ, 園田道夫, 松田 健, 趙 晋輝

    情報処理学会全国大会5K-6  2014.3 

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    佐野綾子, 松田 健, 園田道夫, 趙 晋輝

    情報処理学会全国大会5K-7  2014.3 

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  • 中間一致攻撃の計算量削減法の提案

    伊藤祐樹, 洲崎智保, 峯松一彦, 角尾幸保, 趙晋輝

    2014年暗号と情報セキュリティシンポジウム  2014.1 

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  • GHS攻撃の対象となる奇標数素数次数拡大体上楕円曲線の完全分類

    細萱隆之, 飯島努, 志村真帆呂, 趙晋輝

    2014年暗号と情報セキュリティシンポジウム、SCIS2014 4F2-1  2014.1 

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  • 主成分分析を用いた分類器によるSQLインジェクション攻撃の自動検出法

    園田道夫, 松田健, 小泉大城, 趙 晋輝

    FIT2013 第12回情報科学技術フォーラム L-002  2013.9 

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  • k-匿名化手法の効率向上に関する一提案"

    渡邉奈津美, 土井洋, 趙 晋輝

    情報処理学会 第75回全国大会講演論文集 2Z2, p.3-514  2013.3 

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  • 奇標数有限体の３次拡大体上、種数２曲線の被覆曲線の構成

    橋本拓, 飯島努, 志村真帆呂, 趙晋輝

    2012年 日本応用数理学会研究部会連合発表会|rn|「数論アルゴリズムとその応用」 (JANT) セッション,  2012.3 

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  • 奇標数有限体の３次拡大体上、種数２曲線の被覆曲線の構成

    橋本拓, 飯島努, 志村真帆呂, 趙晋輝

    2012年暗号と情報セキュリティシンポジウムSCIS2012, 1B2-3.  2012.1 

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  • 色弱補正変換画像の好ましさ評価

    陳怡君, 関韻格, 江藤博昭, 中枝武弘, 石川智治, 趙晋輝, 阿山みよし

    日本感性工学会，第13回日本感性工学大  2011.9 

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  • 奇標数3次拡大体上の楕円曲線に対するB.Smith変換を用いた攻撃

    大川 一樹, 飯島 努, 趙晋輝

    電子情報通信学会暗号と情報セキュリティ研究会、ISEC.3/3-5  2011.3 

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  • 拡大体上の楕円曲線のnon-hyperelliptic被覆の構成法に関する考察

    原 弘幸, 飯島 努, 志村 真帆呂, 趙 晋輝

    電子情報通信学会暗号と情報セキュリティ研究会、ISEC.3/3-5  2011.3 

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    佐藤祐一, 森山大輔, 土井 洋, 趙 晋輝

    電子情報通信学会暗号と情報セキュリティ研究会、ISEC.3/3-5  2011.3 

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  • CCCPを用いた最大マージンクラスタリングのカーネル化

    塚原裕史, 高橋宏子, 趙晋輝

    情報処理学会第73全国大会,IPSJ  2011.3 

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  • 類似度の高いファイル構造に基づくマルウェア情報提供システムの提案

    上井 恭輔, 寺田真敏, 趙晋輝

    情報処理学会 コンピュータセキュリティ 研究報告 Vol.2010-CSEC-052  2011.3 

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  • Elliptic curves with weak coverings over cubic extensions of finite fields with even characteristic II

    Mahoro Shimura, Fumiyuki Momose, Jinhui Chao

    2011 SCIS 2C1-3  2011.1 

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  • Security Analysis of Elliptic/hyperelliptic Curves against GHS Attack without Isogeny Condition

    Hirotaka Yoshimori, Tsutomu Iijima, Jinhui Chao

    Proceedings of SCIS2011,2C1-2,  2011.1 

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  • 画像正規化と特徴点抽出を利用した電子透かし方式

    施剛 趙晋輝

    2011年暗号と情報セキュリティシンポジウム1E2-1  2011.1 

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  • 色覚バリアフリーディスプレイに関する基礎研究―色弱者と一般色覚者の比較―

    陳怡君, 関韻格, 江藤博昭, 中枝武弘, 石川智治, 趙晋輝, 阿山みよし

    日本感性工学会，第12回日本感性工学大会  2010.9 

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  • 色空間の曲率に関する考察とその応用

    藤稿航平, 趙晋輝

    電子情報通信学会、映像表現・コンピュータグラフィックス研究会(ITE-AIT)、画像工学研究会(IE), ヒューマンインフォメーション研究会（ITE-HI）  2010.2 

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  • ハッシュ関数MD4に対するChosen Prefix Attackの考察

    宮崎 祐輔, 趙 晋輝

    2010年暗号と情報セキュリティシンポジウム4D1-5  2010.1 

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  • Classification of Elliptic/hyperelliptic Curves with Weak Coverings against GHS Attack without Isogeny Condition

    Tsutomu Iijima, Fumiyuki Momose, Jinhui Chao

    Symposium on Cryptography and Information Security, SCIS2010, 2D2-1  2010.1 

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  • Elliptic curves with weak covering over cubic extensions of finite fields with even characteristic

    Mahoro Shimura, Fumiyuki Momose, Jinhui Chao

    Symposium on Cryptography and Information Security, 1D2-2  2010.1 

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  • リーマン正規座標系を用いた色空間における色差保存写像の構築と色弱補正方式への応用

    大島哲, 望月理香, 趙晋輝

    電子情報通信学会HCGシンポジウム、B4-2  2009.12 

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  • 弱定常確率場の線形モデルによる3D形状表現とその不変特徴量

    高橋祥, 趙晋輝

    電子情報通信学会パターン認識・メディア理解（PRMU）研究会  2009.10 

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  • 色空間の局所等長変換を用いたプリンタの色再現方式に関する考察

    武田智史, 望月理香, 趙晋輝

    日本色彩学会視覚基礎研究会、2009年度第２回研究発表会、3-2  2009.8 

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  • 最大マージンクラスタリングにおけるcutting-planeアルゴリズムへのカーネル法の適用

    高橋宏子, 塚原裕史

    日本神経回路学会第19回全国大会、JNNS2009. P3-14  2009.3 

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  • 静止画像の特徴点を利用した電子透かし

    千葉晃宏, 趙晋輝, 合志清一

    2009年暗号と情報セキュリティシンポジウム4F2-1  2009.1 

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  • Classification of Weil Restrictions Obtained (2, ..., 2) Coverings of P1 without Isogeny Condition in Small Genus Cases

    Tsutomu Iijima, Fumiyuki Momose, Jinhui Chao

    Proceedings of SCIS2009, 2C3-4, 2009  2009.1 

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  • On color-reproduction and color-perception-correction for polychromatics

    R. Mochizuki, J. Chao

    Proceedings of DSP Symposium, 2008, IEICE  2008.11 

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  • Riemann 正規座標系を用いた色弱補正方式

    大島哲, 望月理香, 中村竜也, 趙晋輝

    電子情報通信学会 2008年ソサイエティ大会, A-4-14  2008.9 

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  • デバイスに依存しない色再現方式に関する考察

    藤稿航平, 中村竜也, 望月理香, 趙晋輝

    電子情報通信学会 2008年ソサイエティ大会,A-4-13  2008.9 

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  • Riemann 正規座標系を用いた色弱補正方式

    大島哲, 中村竜也, 望月理香, 趙晋輝

    電子情報通信学会 信学技報-HIP, |rn|ヒューマンインターフェース学会研究報告集,|rn|Vol.10, No.1, pp.119-124,  2008.8 

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  • A Two-Party Hierarchical Identity Based Key Agreement Protocol Without Random Oracles

    森山 大輔, 土井 洋, 趙 晋輝

    Proceedins of SCIS2008, 4D1-1  2008.1 

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  • On Certain Classes of Elliptic Hyper-elliptic Curves with Weak Coverings against GHS Attack

    Tsutomu Iijima, Fumiyuki Momose, Jinhui Chao

    Proceedins of SCIS2008, 2D4-2  2008.1 

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  • 奇標数3次拡大体上の楕円曲線暗号に対するGHS攻撃の実装

    橋詰直紀, 百瀬文之, 趙晋輝

    Proceedins of SCIS2008, 2D3-5.  2008.1 

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  • 尺度空間上の Reeb グラフに基づく画像著作権保護方式の高速化に関する研究

    田中篤志, 趙晋輝

    Proceedins of SCIS2008, 1D2-4  2008.1 

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  • 測地線座標系を用いた均等色空間の構築と色弱補正への応用

    中村竜也, 松本大輔, 趙晋輝

    第22回信号処理シンポジウム，電子情報通信学会，  2007.11 

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  • 局所色弁別閾値を用いた大域色弱写像の推定と色弱補正への応用

    望月理香, 中村竜也, 趙 晋輝

    第22回信号処理シンポジウム，電子情報通信学会  2007.11 

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  • Elliptic and Hyperelliptic curves with Weak Covering against Weil descent attacks (Invited talk)

    J. Chao

    2007 International Workshop on Elliptic Curve Cryptosystems, ECC2007  2007.9 

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  • 色弁別閾値を基準とした色弱の補正法に関する考察 -その２-

    望月理香, 中村竜也, 趙 晋輝

    電子情報通信学会, HIP,|rn|ヒューマンインタフェース学会研究報告集, Vol.9, No.2, pp.137-142,  2007.5 

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  • 色弁別閾値を基準とした色弱の補正法に関する考察

    望月理香, 中村竜也, 趙晋輝

    電子情報通信学会ヒューマン情報処理研究会、|rn|Technical report of IEICE. HIP, Vol.106, No.610, pp.1-6，HIP2006-128，2007．|rn|HCGシンポジウム  2007.3 

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  • 二色型色弱視の補正原理と実現法に関する考察

    望月理香, 中村竜也, 趙晋輝

    電子情報通信学会2007春季総合大会  2007.3 

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  • Classification of Weil restrictions obtained by (2,...,2) coverings of P1

    Fumiyuki Momose, Jinhui Chao

    Proceedings of SCIS2007, 1D2-3  2007.1 

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  • 利用履歴と登録情報を秘匿できるコンテンツ配信・課金方式の考察

    村山 哲晴, 土井, 洋, 真島, 恵吾, 趙 晋輝

    Proceedings of SCIS2007, 3B2-4 2007．  2007.1 

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  • 二色型色弱視の補正原理と実現法に関する考察

    望月理香, 中村竜也, 趙晋輝

    電子情報通信学会第21回信号処理シンポ  2006.11 

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  • 色弱視のモデリングとその補正法に関する一考察

    中村竜也, 望月理香, 趙晋輝

    電子情報通信学会ソサイアティ大会、A-20-8  2006.10 

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  • Invariant Extraction of fibre-bundle model of surface and segmentation

    野地翔, 堀池, 趙

    Symposium on Methods of Image Recognition and Understanding, MIRU  2006.9 

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  • 色弱視のモデリングとその補正法に関する一考察

    中村竜也, 尾崎真帆, 趙晋輝

    日本シミュレーション学会  2006.7 

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  • 色弱視のモデリングと補正法に関する考察

    中村竜也, 尾崎真帆, 趙晋輝

    電子情報通信学会、ヒューマン情報処理研究会、|rn|ヒューマンインタフェース学会研究報告集，Vol8, No.2, pp.43-48  2006.6 

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  • 超楕円曲線上のHarley加算アルゴリズムにおけるResultant計算について

    入海淳, 松尾和人, 趙晋輝, 辻井重男

    電子情報通信学会暗号と情報セキュリティ研究会、信学技報ISEC2006-5, pp.29-35  2006.3 

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  • A secure ID based authenticated key agreement scheme with pairing

    Moriyama Daisuke, Jinhui Chao

    電子情報通信学会暗号と情報セキュリティ研究会、信学技法ISEC2006-3, pp.103-108  2006.3 

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  • On Schorten forms and elliptic/hyperelliptic curves with weak Weil restriction

    Fumiyuki Momose, Jinhui Chao

    Proceedings of SCIS2006, 4C2-1  2006.1 

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  • Security Analysis of Superelliptic Curves against Diem's Algorithm Combined with Weil Descent

    Iijima Tsutomu, Jinhui Chao, Tsujii Shigeo

    Proceedings of SCIS2006, 4C2-2.  2006.1 

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  • ストリーム暗号Pyに用いられるKeySchedulingアルゴリズムの安全性評価

    小木曽, 匡, 下山, 武司 趙 晋輝

    Proceedings of SCIS2006, 3E4-2  2006.1 

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  • 線形Lie代数を用いた3次元形状の対話的変形

    金子真理子, 相良直哉, 牧野光則, 趙晋輝

    芸術科学会第21回NICOGRAPH論文コンテスト論文集, pp.97-102  2005.11 

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  • Lie代数曲面モデルの詳細度制御付きJava Viewer

    相良直哉, 桑原明栄子, 牧野光則, 趙晋輝

    芸術科学会第21回NICOGRAPH論文コンテスト論文集, pp.79-84  2005.11 

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  • 線形Lie代数モデルを用いた3次元形状の対話的変形操作・表示法

    金子真理子, 相良直哉, 牧野光則, 趙 晋輝

    FIT 2005 K-027  2005.9 

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  • 形状変化を伴うファイバー束物体モデルの適応的メッシュ化

    相良直哉, 桑原明栄子, 牧野光則, 趙 晋輝

    FIT 2005J-048  2005.9 

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  • 測地座標を用いた均等色空間の構築

    松本大輔, 趙 晋輝

    FIT 2005 J-006  2005.9 

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  • MAC生成機能を持つストリーム暗号の安全性評価

    安藤俊介, 下山武司

    電子情報通信学会暗号と情報セキュリティシンポジウムSCIS2005, pp.391－396  2005.1 

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  • On Weil descent of elliptic curves over quadratic extensions

    Fumiyuki Momose, Jinhui Chao, Mahoro Shimura

    Proceedings of SCIS2005, pp.787-792  2005.1 

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  • On security of Superellitpic curves against GHS Weil descent attacks

    Takahiro Oda, Tsutomu Iijima, Mahoro Shimura, Jinhui Chao, Shigeo Tsujii

    Proceedings of SCIS2005, pp.775-780  2005.1 

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  • A scale-space Reeb-graph of topological invariants of images and its |rn|applications to copyright protection

    鈴木慎太郎, 工藤健太郎, 趙晋輝

    Proceedings of SCIS2005, pp.859-864  2005.1 

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  • SVMにおける特徴写像の学習に関する考察

    和田健, 斉藤弘紀, 塚原裕史

    FIT2004、H007  2004.9 

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  • SVMの特徴写像の学習について

    和田 健, 斉藤 弘紀, 趙 晋輝

    電子情報通信学会ニューラルコンピューティング研究会  2004.3 

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  • On surface model based on a fibre bundle of 1-parameter group of hamilton Lie algebra'

    H. Li, J. Chao

    IPSJ SIG Tech. report 2004-CG-114(7), Vol.2004,|rn|No.16,pp.37-42  2004.2 

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  • On differential-topological invariants of image in a scale-space and its applicatio to copyright protection

    Shitaro. Suzuki, J. Chao

    Proceedings of SCIS04, 3D1-3  2004.1 

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  • Improvement of addition algorithm on genus three hyperelliptic curves

    Masaki Gonda, Kazuto Matsuo, Kazumaro Aoki, J. Chao, S. Tsujii

    Proceedings of SCIS04, 3A3-1  2004.1 

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  • An extension of GHS Weil descent attack

    T. Iijima, M. Shimura, J. Chao, S. Tsujii

    Proceedings of SCIS04, 3A2-5  2004.1 

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  • サポートベクターマシンにおける特徴写像の学習について

    斉藤弘紀, 趙 晋輝

    FIT東北大2003 H-025  2003.9 

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  • サポートベクターマシンの埋め込み関数の学習について

    斉藤弘紀, 趙晋輝, 星野美保

    電子情報通信学会NC研究会  2003.3 

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  • カラー画像の位相不変量とそれを利用した著作権保護方式に関する考察

    金 鐘大, 趙 晋輝

    SCIS2003 13A-2  2003.3 

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  • A new surface model based on a fibre bundle of 1-parameter groups

    JongDae Kim, A. Nagakura, J. Chao

    IEICE Tech. Report, IE2002-200, pp.97-102, 2003.  2003.3 

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  • On definitions and construction of uniform color space

    I. Osugi, J. Chao

    Tech. Report of IEICE, ITS2002-50, IE2002-191 (2003-02), pp.47-52, 2003  2003.2 

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  • A generalized Harley algorithm for genus two hyperelliptic curves

    T. Suguzaki, K.Matsuo, J. Chao, S. Tsujii

    SCIS2003 12C-1  2003.1 

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  • On shape synthesis of generalized cynlinders using 1-pamameter groups

    A. Nagakura, JongDae Kim, J. Chao

    Proceeding FIT. IEICE pp.217,  2002.9 

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  • An Exntension of Harley algorithm addition algorithm for hyperelliptic curves over finite fields of characteritic two

    Hiroki Sugizaki, Matsuo, Chao, Tsujii

    ISEC2002-9(2002-5), pp.49-56  2002.5 

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  • 線形リー代数モデルを用いた3次元物体形状の不変量抽出と領域分割

    児玉, 内村, 鈴木, 趙

    映像情報メディア学会技術報告「マルチメディア情報処理」（映情学技報）,ISSN 1342-6893  2002.3 

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  • 線形リー代数モデルを用いた3次元物体形状合成法

    内村, 児玉, 塩田, 鈴木, 趙

    映像情報メディア学会技術報告「マルチメディア情報処理」（映情学技報）,ISSN 1342-6893  2002.3 

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  • 種数2の超楕円曲線上の因子類群の高速演算法に関する考察

    宮本洋輔, 土井洋, 松尾和人, 趙晋輝, 辻井重男

    2002年暗号と情報セキュリティシンポジウムSCIS2002予稿集  2002.1 

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  • SVMネットワークの高速化と拡張に関する考察

    星野, 趙

    電子情報通信学会春季（総合）大会  2002.1 

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  • A high quality mesh generation for surfaces defined by Hamiltonian Lie algebra

    Yuichi Yamanoto, Hiroyasu Sano, Mitsunori Makino, Jinhui Chao

    Proceedings of TENCON 2001, IEEE Region 10 Int. Conf. on Electrical and Electronic Technology. August  2001.8 

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  • A new pyramid network and its generalization performance

    Jinhui Chao, Miho Hoshino, Tasuku Kitamura, Ken Masuda

    Proceeding of IJCNN2001, Washinton DC  2001.7 

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  • Generalization Performance of pyramid network and its generalization performance

    Miho Hoshino, Jinhui Chao

    Proceeding of IJCNN2002  2001.7 

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  • A Multilayer RBF network and its supervised learning

    Jinhui Chao, Miho Hoshino, Tasuku Kitamura, Ken Masuda

    Proceeding of IJCNN2001, Washinton DC  2001.7 

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  • Error surface analysis and fast RLS adaptive algorithm of quadratic Volterra ADF'

    Jinhui Chao, Atsushi Inomata, Tomonori Kubota, Shinpei Uno

    Proceeding of NSIP2001, CD Rom, the 2001 IEEE-EURASIP Nonlinear Signal and Image Processing Workshop, TuePmOr6, Baltimore  2001.6 

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  • A Multilayer RBF network and its supervised learning'Neural Information Processing

    Jinhui Chao, Miho Hoshino

    Fudan University Press/Edited by Liming Zhang, Fanji Gu, Proceeding ICONIP, 2001  2001.4 

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  • 「曲率解析と曲面積分を用いたリー代数により3D物体モデルの形状合成法」

    塩田晋, 浦康一, 本馬剛, 趙晋輝

    電子情報通信学会信学技報  2001.4 

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  • Fast genus two hyperellptic curve cryptosysytems

    松尾, 趙, 辻井

    信学技報ISEC,電子情報通信学会情報セキュリティ研究会  2001.4 

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  • Construction of uniform color space and optimal color quantization

    Ikue Osugi, Masaki Suzuki, Jinhui Chao

    16回電子情報通信学会デジタル信号処理シンポジウム論文集  2001.4 

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  • ピラミドネットワークと多層RBFネットワークによる多層ニューラルネットの表現力と汎化性能の改善について

    星野美保, 趙晋輝

    16回電子情報通信学会デジタル信号処理シンポジウム論文集  2001.4 

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  • Lie代数モデルを用いた3D物体の不変量抽出と領域分割

    児玉, 鈴木

    電子情報通信学会秋季大会  2001.4 

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  • 曲率解析と曲面積分を用いた Lie代数モデルを用いた3D物体の合成

    内村, 塩田

    電子情報通信学会秋季大会  2001.4 

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  • ”ピラミドネットワークと多層RBFネットワークによる多層ニューラルネットの表現力と汎化性能の改善について”

    星野, 趙

    電子情報通信学会秋季大会  2001.4 

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  • 像の位相不変量を用いた著作権保護方式の一考察

    鈴木, 金鐘大, 趙, 辻井

    2002年暗号と情報セキュリティシンポジウムSCIS2002  2001.4 

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  • Construction of Frobenius maps of twists elliptic curves and tis application to elliptic scalar multiplication

    Tsutomu Iijima, Kazuto Matsuo, Jinhui Chao, Shigeo Tsujii

    Proceedings of 2002 Symposium on Cryptography and Information Security, SCIS2002  2001.4 

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  • 「RBFネットワークの多層化とピラミッド型ネットワークの提案」

    星野美保, 北村佐久, 増田健, 鈴木正樹, 趙晋輝

    電子情報通信学会信学技報,ニューロンコンピューティング研究会  2001.4 

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  • ”均等色空間の構築に関する考察”

    大杉, 鈴木

    電子情報通信学会秋季大会  2001.4 

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  • Fast Genus Three Hyperelliptic Curve Cryptosystems

    Junichi Kuroki, Masaki Gonda, Kazuto Matsuo, Jinhui Chao, Shigeo Tsujii

    Proceedings of 2002 Symposium on Cryptography and Information Security, SCIS2002  2001.4 

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  • Improving baby step giant step algorithm for point counting of genus 2 hyperelliptic curves over finite fields

    K. Matsuo, J. Chao, S. Tsujii

    Proceedings of 2002 Symposium on Cryptography and Information Security, SCIS2002  2001.4 

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  • RBFネットワークの多層化とピラミッド型ネットワークの提案

    星野美保, 北村佐久, 増田健, 趙晋輝

    ニューロンコンピューティング研究大会,電子情報通信学会信学技報  2001.3 

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  • 曲率解析と曲面積分を用いたリー代数により3D物体モデルの形状合成法

    塩田晋, 浦康一, 本馬剛, 趙晋輝

    パターン認識とメディア理解研究大会,電子情報通信学会信学技報  2001.2 

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  • 「Reeb Graphによる動画系列の記述法とアニメーションへの適用」

    岡林正純, 鈴木正樹, 牧野光則, 趙晋輝

    2000年電子情報通信学会ソサアティ大会,Oct.名工大、2000  2000.10 

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  • RBFネットワークの多層化とピラミッド型ネットワークの提案

    星野美保, 北村佐久, 増田健, 趙晋輝

    2000年電子情報通信学会ソサアティ大会；論文集  2000.10 

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  • Spline補間と拡張Hough変換を用いた3D物体のリー代数モデルによる物体認識

    塩田晋, 本馬剛, 趙晋輝

    2000年電子情報通信学会ソサアティ大会；論文集  2000.10 

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  • Volterra型非線形適応フィルタの高速で数値安定なRLS算法とその非正規分布入力信号に対する有効性に関する考察

    久保田智規, 宇野晋平, 阿部和正, 趙晋輝

    15回電子情報通信学会デジタル信号処理シンポジウム 論文集  2000.10 

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  • ガウス分布に従わない入力信号に対するVolterra型非線形適応フィルタの高速RLS算法の有効性に関する考察

    阿部和正, 久保田智規, 趙晋輝

    2000年電子情報通信学会ソサアティ大会；論文集  2000.10 

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  • 線形リー代数を用いた曲面の適応的高品質メッシュ生成

    佐野太保, 牧野光則, 趙晋輝

    2000年電子情報通信学会ソサアティ大会  2000.10 

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  • 楕円・超楕円暗号の現状と動向（招待講演）

    趙晋輝

    中大理工学研究所  2000.10 

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  • 楕円暗号のその一般化の動向（招待講演、パネラー）

    趙晋輝

    「高度情報セキュリティ研究プロジェクト成果報告会」,通信放送機構  2000.6 

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  • Recent topics in Modern Cryptography

    Invited Talk./Harvard University, Math. Dept.  2000.2 

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  • 「Jacobi 多様体のCM Typeの計算」

    梅木翼, 細谷光男, 松尾和人, 趙晋輝, 辻井重男

    2000年暗号と情報セキュリティシンポジウム,Proc. of SCIS' 2000  2000.1 

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  • CM多様体のWill Numberの計算と安全な暗号系の設計

    若林秋, 中溝孝則, 松尾和人, 趙晋輝, 辻井重男

    2000年暗号と情報セキュリティシンポジウム,Proc. of SCIS' 2000  2000.1 

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  • Ordinary liftingを用いたCM超楕円曲線の生成

    芳賀智之, 松尾和人, 趙晋輝, 辻井重男

    2000年暗号と情報セキュリティシンポジウム,Proc. of SCIS' 2000  2000.1 

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  • Superelliptic Curveを用いた暗号系の構成

    久保山拓, 神尾一也, 松尾和人, 超晋輝, 辻井重男

    2000年暗号と情報セキュリティシンポジウム,Proc. of SCIS' 2000  2000.1 

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  • 入力信号の白色化を用いたVolterra非線形適応フィルタのRLSアルゴリズム

    久保田智規, 宇野晋平, 阿部和正, 趙晋輝

    電子情報通信学会信学技法,ディジタル信号処理研究会  1999.10 

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  • 楕円曲線の設計法と暗号系への応用（招待講演）

    趙晋輝

    通信放送機構  1999.8 

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  • A Fast Algorithm of Model Lifting for CM Hyperelliptic Curves

    Kazuya Kamio, Hiroto Kawashiro, Jinhui Chao, Shigeo Tsujii

    Proc. Of SICS' 99  1999.1 

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  • Construction of Elliptic Cryptosystems Using Ordinary Liftings

    Mitsuo Hosoya, Kohji Sobataka, Jinhui Chao, Shigeo Tsujii

    Proc. Of SICS' 99  1999.1 

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  • On Lifting of CM Hyperelliptic Curves

    Kazuto Matsuo, Jinhui Chao, Shigeo Tsujii

    Proc. Of SICS' 99  1999.1 

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  • Construction of Elliptic Cryptosystems Using Supersingular Liftings

    Takanori Nakamizo, Kohji Sobataka, Jinhui Chao, Shigeo Tsujii

    Proc. Of SICS' 99  1999.1 

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  • ボルテラ型非線形適応フィルタの高速適応算法の一考察

    久保田智規, 宇野晋平, 趙晋輝

    1998ディジタル信号処理シンポジウム；論文集  1998.10 

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  • CMテストとリフティングによる安全な楕円暗号系の構成法の実現と解析

    側高幸司, 松尾和人, 趙晋輝, 辻井重男

    1998年電子情報通信学会ソサイエティ大会；論文集  1998.9 

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  • 2次Volterra FIR適応フィルタの高速アルゴリズム

    久保田智規, 宇野晋平, 趙晋輝

    電子情報通信学会信学技法,ディジタル信号処理研究会  1998.6 

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  • リーマン幾何学的構造からの単色知覚及び複数色知覚における主観色空間の比較

    鈴木正樹, 趙晋輝

    電子情報通信学会信学技法,ヒューマン情報処理研究会  1998.6 

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  • CMテストとリフティングによる安全な楕円暗号系の構成法の実現と解析

    側高幸司, 松尾和人, 趙晋輝, 辻井重男

    1998年電子情報通信学会総合大会；論文集  1998.4 

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  • CMテストとリフティングによる安全な楕円暗号系の構成法に関する考察

    側高幸司, 中村理, 趙晋輝, 辻井重男

    電子情報通信学会信学技法(1998-03),情報セキュリティ研究会  1998.3 

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  • Consturction of CM hyperelliptic curves using RM families

    川白弘人, 中村理, 趙晋輝, 辻井重男

    電子情報通信学会信学技法,情報セキュリティ研究会  1998.3 

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  • Construction of secure elliptic curves using CM test and lifting

    Kohji Sobataka, Satoshi Nakamura, Jinhui Chao, Fuiyuki Momose, Shigeo Tsujii

    Proceedings of SCIS'98/1998 Symposium on Cryptography and Information Security  1998.1 

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  • Consturuction of CM hyperelliptic curves using RM families

    Masahiro Kawashiro, Satoshi Nakamira, Jinhui Chao, Fumiyuki Mamose, Shigeo Tsujii

    Proceedings of SCIS'98/1998 Symposium on Cryptography and Information Security  1998.1 

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  • Some consideratipn on security of hyperlliptic cryptosystems

    Shingo Kurotani, Kazuto Matsuuo, Jinhui Chao, Shigeo Tsujii

    Proceedings of SCIS'98/1998 Symposium on Cryptography and Information Security  1998.1 

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  • Volterra ADFの高速算法

    1997年ディジタル信号処理シンポジウム；論文集  1997.11 

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  • B-spline補間による線形リー代数の3D物体表現能力の評価

    浦康一, 島田敏弘, 趙晋輝

    電子情報通信学会秋季総合大会；論文集  1997.9 

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  • Hough変換を用いた線形リー代数による3D物体の認識方式の実現

    石井進也, 島田敏弘, 趙晋輝

    電子情報通信学会秋季総合大会;；文集  1997.9 

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  • Migic Brush法を用いた層状ニューラルネットワークの大域収束する学習法に関する考察

    宇野晋平, 趙晋輝

    電子情報通信学会秋季総合大会；論文集  1997.9 

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  • 色彩情報処理における色空間束モデルの提案とファイバ色空間上における等色空間の構築

    鈴木正樹, 清水泰成, 趙晋輝

    電子情報通信学会1997年総合大会；論文集  1997.9 

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  • 相互制御型ニューラルネットを用いた幾何学錯視の逆錯視の実現

    吉田進一, 宮田泰成, 趙晋輝

    電子情報通信学会秋季総合大会；論文集  1997.9 

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  • CMアーベル多様体に基づく暗号系に関する考察

    中村理, 松田規, 趙晋輝, 辻井重男

    電子情報通信学会秋季総合大会；論文集  1997.9 

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  • 物体空間位相の新しい階層的表現法に基づく 3D物体位相の認識

    中島将揮, 岡田紳太郎, 趙晋輝

    電子情報通信学会秋季総合大会；論文集  1997.9 

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  • 3D物体の空間位相の階層的表現法の提案とそれに基づく認識法

    岡田紳太郎, 原健司, 趙晋輝

    1997年映像情報メディア学会年次大会(ITE 97)；論文集  1997.7 

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  • 色彩情報処理における色空間束モデルの提案と測地線射影を用いた色彩情報の最適近似

    鈴木正樹, 清水泰成, 趙晋輝

    1997年映像情報メディア学会年次大会(ITE 97)；論文集  1997.7 

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  • Volterra非線形適応フィルタの収束解析と高速適応算法の一提案

    猪股篤, 宇野晋平, 趙晋輝

    電子情報通信学会信学技法,ディジタル信号処理研究会  1997.6 

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  • 複数色知覚における色空間束モデルの提案と色彩乗法処理における応用

    清水泰成, 鈴木正樹, 趙晋輝

    電子情報通信学会信学技法,ヒューマン情報処理研究会  1997.6 

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  • 3D物体の空間位相の表現方式の提案とそれに基づく認識法

    岡田紳太郎, 原健司, 趙晋輝

    1997年総合大会；論文集,電子情報通信学会  1997.3 

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  • Volterra適応フィルタの収束解析と高速アルゴリズムの提案

    猪股篤, 趙晋輝

    1997年総合大会；論文集,電子情報通信学会  1997.3 

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  • アーベル多用体上の離散対数問題に基づく暗号系の安全性に関する一考察

    黒谷欣吾, 趙晋輝, 辻井重男

    1997年総合大会；論文集,電子情報通信学会  1997.3 

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  • 虚数乗法を有するアーベル多様態を用いる暗号系に関する考察

    中村理, 松田規, 趙晋輝, 辻井重男

    電子情報通信学会信学技法,情報セキュリティ研究会  1997.3 

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  • 結び目の抽出と認識

    岡田紳太郎, 柳沢卓, 原健司, 趙晋輝

    テレビジョン学会全国大会  1997.3 

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  • 色彩情報処理における色空間束モデルの提案と測地線射影による色彩銃砲の最適近似

    清水泰成, 鈴木正樹, 趙晋輝

    1997年総合大会；論文集,電子情報通信学会  1997.3 

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  • 素体上における安全な大種数超楕円曲線の構成法

    佐藤淳一, 松田規, 趙晋輝, 辻井重男

    電子情報通信学会信学技法,情報セキュリティ研究会  1997.3 

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  • CMを有するアベール代数多様態を用いた暗号系に関する考察

    中村理, 松田規, 趙晋輝, 辻井重男

    1997年暗号と情報セキュリティシンポジウム SCIS'97；論文集,電子情報通信学会  1997.1 

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  • アーベル多用体上の離散対数問題に基づく暗号系の安全性に関する考察

    黒谷欣吾, 趙晋輝, 辻井重男

    1997年暗号と情報セキュリティシンポジウム SCIS'97；論文集,電子情報通信学会  1997.1 

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  • 拡大体上におけるアーベル多様態に基づく暗号系の構成法

    松尾和人, 趙晋輝, 辻井重男

    1997年暗号と情報セキュリティシンポジウム SCIS'97；論文集,電子情報通信学会  1997.1 

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  • 幾何学錯視の相互制御型ニューラルネットによる実現と測地線に基づく視空間の大域的幾何学に関する考察

    宮田泰彦, 吉田慎一, 趙晋輝

    ヒューマン情報処理研究会,電子情報通信学会信学技報  1997.1 

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  • 素体上における安全な大種数超楕円曲線の構成法

    佐藤淳一, 松田規, 趙晋輝, 辻井重男

    1997年暗号と情報セキュリティシンポジウム SCIS'97；論文集,電子情報通信学会  1997.1 

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  • Convergence Analysis of Volterra Adaptive Filters

    猪股篤, 趙晋輝

    論文集,第11回ディジタル信号処理シンポジウム講演  1996.11 

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  • 線形及びハミルトンベクトル場のリー代数による3D物体表現に関する考察

    柳沢卓, 岡田紳太郎, 原健司, 趙晋輝

    論文集,第一回映像メディア処理シンポジウム  1996.10 

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  • 2次元画像からの結び目の抽出と位相不変多項式による認識

    柳沢卓, 岡田紳太郎, 原健司, 趙晋輝

    論文集,電子情報通信学会1996年秋季ソサイアティ大会  1996.9 

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  • 相互制御型ニューラルネットワークを用いた色の錯視の現実と色空間の幾何学に関する考察

    清水泰成, 宮田泰彦, 趙晋輝

    論文集,電子情報通信学会1996年秋季ソサイアティ大会  1996.9 

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  • 超楕円曲線上におげる安全な離散対数問題の効率的な構成法に関する考察

    松田規, 趙晋輝, 辻井重男

    電子情報通信学会信学技法,情報セキュリティ研究会  1996.9 

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  • 超楕円曲線上におげる安全な離散対数問題の効率的な構成法に関する考察

    松田規, 趙晋輝, 辻井重男

    論文集,電子情報通信学会1996年秋季ソサイアティ大会  1996.9 

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  • 線形及びハミルトンベクトル場のリー代数による3D物体表現に関する考察

    島田敏弘, 大野慎一, 烏谷彰, 趙晋輝

    論文集,電子情報通信学会1996年秋季ソサイアティ大会  1996.9 

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  • 相互制御型ニューラルネットワークを用いた色の錯視の現実と色空間の幾何学に関する考察

    宮田泰彦, 清水泰成, 趙晋輝

    電子情報通信学会信学技法  1996.8 

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  • ハミルトンベクトルの場のリー代数を用いた3次元物体の不変な表現と認識方式

    烏谷彰, 大野慎一, 趙晋輝

    1996年画像の認識と理解シンポジウム,Proc. of MIRU96,  1996.7 

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  • 立方特異単体による3次元物体の復元・解像度変換と位相不変量による認識

    中山丈二, 原健司, 趙晋輝

    1996年画像の認識と理解シンポジウム,Proc. of MIRU96,  1996.7 

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  • On Tracking of Discontinous Timevariance with Volterra Nonlinear Adaptive Filters

    趙晋輝, 猪股篤

    第10回ディジタル信号処理シンポジウム講演論文集,(社)電子情報通信学会  1995.11 

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  • 拡大体上の暗号学的に安全な楕円曲線の効率的な構成法に関する考察

    趙晋輝, 松田規, 原田幸治, 辻井重男

    1995年秋季ソサイアティ大会講演論文集,(社)電子情報通信学会  1995.9 

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  • 不連続な時間変化を追従する非線形適応フィルタに関する考察

    趙晋輝, 猪股篤

    1995年秋季ソサイアティ大会講演論文集,(社)電子情報通信学会  1995.9 

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  • ハーミルトンベクトル場のリー代数による物体の不変な表現と認識

    趙晋輝, 烏谷彰, 大野慎一

    1995年秋季ソサイアティ大会講演論文集,(社)電子情報通信学会  1995.9 

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  • 立法特異単体複体による3次元物体の復元とホモロジー群の高速計算

    中山丈ニ, 原健司, 趙晋輝

    1995年秋季ソサイアティ大会講演論文集,(社)電子情報通信学会  1995.9 

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  • 適応アルゴリズムの新しい展開

    趙晋輝

    1995年秋季ソサイアティ大会講演論文集,(社)電子情報通信学会  1995.9 

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  • 拡大体上の楕円曲線の構成法に関する考察

    原田幸治, 趙晋輝, 辻井重男

    情報セキュリティと暗号研究会,(社)電子情報通信学会  1995.3 

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  • 特異単体複体による3次元物体の表現とホモロジー群の計算

    趙晋輝, 中山丈ニ

    パターン認識研究会、画像工学研究会,(社)電子情報通信学会  1995.3 

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  • 視覚ベクトル場の線形リー代数を用いた3次元物体の表現と不変な認識方式

    趙晋輝, 烏谷彰

    パターン認識研究会、画像工学研究会,(社)電子情報通信学会  1995.3 

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  • 相互抑制型ニューラルネットによる幾何学錯視の実現と視空間の内在的幾何学に関する考察

    趙晋輝, 宮田泰彦

    ニューラルコンピューティング研究会,(社)電子情報通信学会  1995.1 

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  • Design of elliptic curves over finite fields with CM field method

    K.Harada, J.Chao, S.Tsujii

    The 1995 Symposium on Cryptography and Information Security(SCIS'95)  1995.1 

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  • 競合学習による3次元物体の大局的位相の獲得

    趙晋輝, 中山丈ニ

    第9回ディジタル信号処理シンポジウム講演論文集,(社)電子情報通信学会  1994.12 

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  • 視覚ベクトル場の線形Lie代数を用いた3次元物体の不変な認識

    趙晋輝, 烏谷彰

    第9回ディジタル信号処理シンポジウム講演論文集,(社)電子情報通信学会  1994.12 

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  • 相互抑制型ニューラルネットによる幾何学錯視の実現及び視空間の幾何学に関する研究

    趙晋輝, 宮田泰彦

    第9回ディジタル信号処理シンポジウム講演論文集,(社)電子情報通信学会  1994.12 

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  • 相互抑制型ニューラルネットによる幾何学錯視の実現及び視空間の幾何学に関する研究

    趙晋輝, 宮田泰彦

    1994年電子情報通信学会秋季大会講演論文集,(社)電子情報通信学会  1994.10 

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  • 自己組織ニューラルネットによる3D物体の位相学習とベクトル量子化

    趙晋輝, 中山丈ニ

    1994年電子情報通信学会秋季大会講演論文集,(社)電子情報通信学会  1994.10 

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  • 線形Lie代数を用いた物体の表現と不変な認識(その2)

    趙晋輝, 烏谷彰

    1994年電子情報通信学会秋季大会講演論文集,(社)電子情報通信学会  1994.10 

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  • Topology asquisition for complex 3D objects with a self-organization neural network with local competition

    Jinhui Chao, Jyouji Nakayama

    Proceeding of International Symposium on Nonlinear Theory and Applications (NOLTA'94)/IEICE  1994.10 

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  • Investigation of intrinsic geometry of visual space in geometric illusions through artificial networks

    Jinhui Chao, Yasuhiko Miyata

    Proceeding of International Symposium on Nonlinear Theory and Applications(NOLTA'94)/IEICE  1994.10 

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  • Does the brain have a 'Lie algebra machine' cortex? -Invariant Object Recognition Using Lie Algebra of Perceptual Vector Fields

    趙晋輝, 蓑輪研二, 烏谷彰, 辻井重男

    画像の認識・理解シンポジウム(MIRU'94),(社)情報処理学会、(社)電子情報通信学会  1994.7 

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  • 複雑な物体の大局的位相を学習する自己組織ニューラルネット

    趙晋輝, 中山丈ニ

    1994年電子情報通信学会春季大会講演論文集,(社)電子情報通信学会  1994.3 

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  • Linear Lie代数を用いた物体の表現と不変な認識

    趙晋輝, 烏谷彰

    1994年電子情報通信学会春季大会講演論文集,(社)電子情報通信学会  1994.3 

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  • Reduction攻撃に対して安全な楕円曲線とその構成法

    趙晋輝, 棚田一夫, 辻井重男

    情報セキュリティと暗号研究会,(社)電子情報通信学会  1994.3 

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  • On secure elliptic curves against the reduction attacks and their design strategey

    Jinhui Chao, Kazuo Tanada, Shigeo Tsujii

    The 1994 Symposium on Cryptography and Information Security(SCIS'94)  1994.1 

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  • How to see geometric illusions in human vision through an artificial neural network

    J.Chao, K.Minowa, T.Kishigami, S.Tsujii

    1993年電子情報通信学会秋季大会講演論文集,(社)電子情報通信学会  1993.9 

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  • Invariant Recognition of Objects under Euclidean Motion Using Lie Algebra of Perceptional Vector Fields

    Kenji Minowa, Jinhui Chao, Shigeo Tsujii

    画像工学研究会、パターン認識研究会,(社)電子情報通信学会  1993.3 

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  • On Discrete Logarithm Problems over Elliptic Curves with p-divisible Groups

    Hiroyuki Ikemoto, Jinhui Chao, Shigeo Tsujii

    The 1993 Symposium on Cryptography and Information Security(SCIS'93)  1993.1 

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  • A Simple ID-based Scheme for Key Sharing, 2nd Version

    S.Tsujii, K.Araki, J.Chao

    情報理論研究会、情報セキュリティと暗号研究会,(社)電子情報通信学会  1992.10 

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  • A Simple ID-based Scheme for Key Sharing

    S.Tsujii, J.Chao, K.Araki, T.Sekine

    情報セキュリティ研究会,(社)電子情報通信学会  1992.8 

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  • Kohonen自己組織神経回路網を用いた3次元形状の認知と表現モデル

    趙晋輝, 蓑輪研二, 辻井重男

    秋季全国大会講演論文集,電子情報通信学会  1991.10 

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  • 予備通信不要なID-based暗号化鍵共有の新方式の提案(第2報)

    辻井重男, 西尾弦一, 趙晋輝

    情報セキュリティ研究会技術研究報告,電子情報通信学会  1991.9 

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  • 情報セキュリティシステムの検証・設計に対する知的支援

    辻井重男, 池田保, 趙晋輝

    情報セキュリティ研究会技術研究報告,電子情報通信学会  1991.9 

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  • 任意入力を有する勾配型適応算法の一次と二次モーメントの収束解析と高速収束算法の提案

    趙晋輝, 河辺忍, 辻井重男

    ディジタル信号処理研究会技術研究報告,電子情報通信学会  1991.8 

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  • 跳躍適応アルゴリズムを用いた帯域分割型エコーキャンセラの一検討

    趙晋輝, 柿本達彦, 辻井重男, エクトルペレス

    ディジタル信号処理研究会技術研究報告,電子情報通信学会  1991.8 

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  • Globally Converging Learning of Multilayer Perceptrons

    Jinhui Chao, Wijak Ratanasuwan, Shigeo Tsujii

    非線形理論とその応用学術研究集会論文集,電子情報通信学会  1991.7 

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  • べき積あるいは田中（初）ID鍵共有方式の高信頼性

    辻井重男, 西尾弦一, 趙晋輝

    春季全国大会講演論文集,電子情報通信学会  1991.3 

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  • 有色入力を有する勾配型適応算法の収束解析

    趙晋輝, 河辺忍, 辻井重男

    春季全国大会講演論文集,電子情報通信学会  1991.3 

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  • On Traning Multilayer Perceptrons to Reach Global Minimum in Finite Times of Search

    Jinhui Chao, Wijak Ratanasuwan, Shigeo Tsujii

    春季全国大会講演論文集,電子情報通信学会  1991.3 

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  • 有限回探索で大域的な最小値に収束する最適化法と多層ニューラルネットワークの学習

    趙晋輝, ラタナスワン、ウィチャック, 辻井重男

    ニューロコンピューティング研究会技術研究報告,電子情報通信学会  1990.11 

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  • 勾配型適応算法に関する一考察

    趙晋輝, 河辺忍, 辻井重男

    ディジタル信号処理シンポジゥム講演論文集,電子情報通信学会  1990.11 

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  • On How to Find Global Minima After Finite Times of Searches and Training of Multilayer Perceptions

    Jinhui Chao, Wijak Ratanaswan, Shigeo Tsujii

    ディジタル信号処理シンポジゥム講演論文集,電子情報通信学会  1990.11 

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  • 多重チャネル間漏話の適応除去法に関する一考察

    黄平, 趙晋輝, 辻井重男

    通信方式研究会技術研究報告,電子情報通信学会  1990.10 

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  • A New Global Optimization Method and Supervised Learning of Multi-layer Neural Networks

    趙晋輝, ラタナスワン、ウィチャック, 辻井重男

    秋季全国大会講演論文集,電子情報通信学会  1990.10 

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  • IIR型エコーキャンセラGIVEに関する一検討

    趙晋輝, 河辺忍, 辻井重男

    秋季全国大会講演論文集,電子情報通信学会  1990.10 

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  • IIR型エコーキャンセラGIVEに関する検討(その2)

    趙晋輝, 河辺忍, 辻井重男

    ディジタル信号処理研究会技術研究報告,電子情報通信学会  1990.6 

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  • 時変系の漸近安定条件及び有界性の制御について

    趙晋輝, 坂庭好一, 辻井重男

    春季全国大会講演論文集,電子情報通信学会  1990.3 

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  • 勾配型補助変数法を用いた新しいIIR型エコーキャンセラ

    趙晋輝, 河辺忍, 辻井重男

    春季全国大会講演論文集,電子情報通信学会  1990.3 

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  • 2チャネル格子型フィルタによるIIR型エコーキャンセラの一検討

    趙晋輝, 丸山唯介, 愛甲進一, 辻井重男

    春季全国大会講演論文集,電子情報通信学会  1990.3 

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  • New Results on the Stability of Time-varying Systems

    Jinhui Chao, Kohichi Sakaniwa, Shigeo Tsujii

    ディジタル信号処理シンポジゥム講演論文集,電子情報通信学会  1989.12 

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  • 予測誤差法に基づく漏話除去とノイズキャンセリングに関する考察

    黄平, 趙晋輝, 辻井重男

    ディジタル信号処理シンポジゥム講演論文集,電子情報通信学会  1989.12 

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  • 補助変数法に基づく新しいIIR型エコーキャンセラに関する研究

    趙晋輝, 河辺忍, 辻井重男

    情報理論とその応用シンポジゥム講演論文集,電子情報通信学会  1989.11 

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  • 適応信号処理における跳躍アルゴリズムの提案とその応用

    趙晋輝, エクトルペレス, 辻井重男, 佐古純一

    ディジタル信号処理研究会技術研究報告,電子情報通信学会  1989.8 

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  • 補助変数法に基づく新しいIIR型エコーキャンセラ

    趙晋輝, 河辺忍, 辻井重男

    ディジタル信号処理研究会技術研究報告,電子情報通信学会  1989.8 

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  • 2チャネル格子型フィルタによるIIR型エコーキャンセラの一検討

    趙晋輝, 丸山唯介, 西谷隆夫, 辻井重男

    応用音響研究会技術研究報告,電子情報通信学会  1989.4 

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  • 適応信号処理における跳躍アルゴリズムの提案2

    趙晋輝, エクトルペレス, 辻井重男

    春季全国大会講演論文集,電子情報通信学会  1989.3 

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  • A New Orthogonalized Block ADF Algorithm Using Discrete Cosine Transform

    Jinhui Chao, Hentor Perez, Shigeo Tsujii

    ディジタル信号処理研究会技術研究報告,電子情報通信学会  1988.5 

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  • 多重伝送路におけるチャネル間干渉の適応除去法

    趙晋輝, 辻井重男, 梅澤健

    ディジタル信号処理研究会技術研究報告,電子情報通信学会  1988.5 

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  • フィードバックを考慮した音響系エコーキャンセラに関する考察

    趙晋輝, 黄平, 辻井重男

    ディジタル信号処理研究会技術研究報告,電子情報通信学会  1988.5 

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  • A Fast Adaptive Algorithm Using Eigenvalues Reciprocals as Stepsizes

    Jinhui Chao, Hector Perez, Shigeo Tsujii

    春季全国大会講演論文集,電子情報通信学会  1988.3 

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  • ハウリングキャンセラにおけるダブルトーク問題に対する一対策

    趙晋輝, 黄平, 辻井重男

    春季全国大会講演論文集,電子情報通信学会  1988.3 

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  • "LATIN" 構成による多重干渉信号の分離と推定

    趙晋輝, 辻井重男

    春季全国大会講演論文集,電子情報通信学会  1988.3 

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  • ハウリングキャンセラにおけるダブルトーク問題に対する一対策

    趙晋輝, 黄平, 辻井重男

    ディジタル信号処理シンポジゥム講演論文集,電子情報通信学会  1987.12 

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  • 多重伝送系の適応的チャネル間干渉除去の一手法

    趙晋輝, 梅沢健, 辻井重男

    ディジタル信号処理シンポジゥム講演論文集,電子情報通信学会  1987.12 

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  • ハウリングキャンセラにおけるダブルトーク問題に対する一対策

    趙晋輝, 黄平, 辻井重男

    情報理論とその応用シンポジゥム講演論文集,電子情報通信学会  1987.11 

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  • 多重伝送系の適応的チャネル間干渉除去の一手法

    趙晋輝, 梅沢健, 辻井重男

    情報理論とその応用シンポジゥム講演論文集,電子情報通信学会  1987.11 

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  • A Sufficient Condition or Stability of Time Varying Rational Systems & Application to IIR Adaptive Filtering

    Jinhui Chao, Shigeo Tsujii, Kohici Sakaniwa

    情報理論とその応用シンポジゥム講演論文集,電子情報通信学会  1987.11 

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  • ダブルトーク期間において制御可能な三端子対エコーキャンセラの提案

    趙晋輝, 辻井重男

    回路とシステム研究会技術研究報告,電子情報通信学会  1987.9 

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  • 多チャンネルラティスフィルタによるシステム同定法の実現と信号推定

    趙晋輝, 辻井重男

    情報理論研究会技術研究報告,電子情報通信学会  1987.9 

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  • Canonical Estimation of Singular Vector AR Processes

    Jinhui Chao, Shigeo Tsujii

    回路とシステム研究会技術研究報告,電子情報通信学会  1987.7 

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  • On Estimation of Noncausal Vector AR Processes

    Jinhui Chao, Shigeo Tsujii

    回路とシステム研究会技術研究報告,電子情報通信学会  1987.7 

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  • ダブルトーク期間において制御可能な三端子対エコーキャンセラの提案

    趙晋輝, 辻井重男

    情報・システム部門全国大会講演論文集,電子通信学会  1987.3 

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  • ダブルトーク時に制御可能な三端子対エコーキャンセラの提案

    趙晋輝, 辻井重男

    情報理論研究会技術研究報告,電子通信学会  1987.1 

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  • 退化した場合を含む安定性判別の不要なIIR型多入出力システムの適応同定法

    趙晋輝, 辻井重男

    情報理論研究会技術研究報告,電子通信学会  1987.1 

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  • 三端子対制御方式によるエコーキャンセラ

    趙晋輝, 藤田洋一, 辻井重男

    ディジタル信号処理シンポジゥム講演論文集,電子通信学会  1986.11 

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  • 安定性判別を必要としないIIR型退化MIMOシステムの適応同定法

    趙晋輝, 辻井重男

    情報理論とその応用シンポジゥム講演論文集,電子通信学会  1986.10 

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  • ベクトル信号の要素空間における特異多次元AR過程の推定

    趙晋輝, 辻井重男

    情報理論とその応用シンポジゥム講演論文集,電子通信学会  1986.10 

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  • ベクトル信号の要素を考慮した多次元線形予測と特異多次元AR過程の不偏一致推定

    趙晋輝, 辻井重男

    情報理論研究会技術研究報告,電子通信学会  1986.9 

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  • LMS法の二次モーメントの収束特性についての検討と跳躍アルゴリズム

    趙晋輝, 辻井重男

    回路とシステム研究会技術研究報告,電子通信学会  1986.3 

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  • LMS法と同じ計算量で収束の速い適応アルゴリズム

    趙晋輝, 辻井重男

    情報理論とその応用シンポジウム講演論文集,電子通信学会  1985.12 

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  • 多次元AR過程の退化対策とそのエコーキャンセラへの応用

    趙晋輝, 黒沢馨, 辻井重男

    回路とシステム研究会技術研究報告,電子通信学会  1985.3 

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  • LMS法と同じ計算量で収束の速い適応アルゴリズム

    趙晋輝, 辻井重男

    情報・システム部門全国大会講演論文集,電子通信学会  1985.3 

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  • 2-Channel Lattice Filterを利用した新しいIIR形エコーキャンセラ

    黒沢馨, 趙晋輝, 辻井重男

    通信方式研究会技術研究報告,電子通信学会  1984.3 

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▼display all

Awards

  • IEICE Milestone

    2017.5   IEICE   色弁別閾値を基準とした新しい色弱補正法の提案

    望月理香, 中村竜也, 趙晋輝

  • 電子情報通信学会フェロー

    2013.6   電子情報通信学会   楕円・超楕円暗号理論と色彩情報処理の先駆的研究

    趙晋輝

  • 情報処理学会優秀論文賞

    2013.6   情報処理学会   "k-匿名化手法の効率向上に関する一提案|rn|情報処理学会 第75回全国大会講演論文集 2Z2, p.3-514, 2013."

    渡邉奈津美, 土井洋, 趙 晋輝

  • 喜安善市賞

    2011.6   電子情報通信学会   "「色弁別閾値を基準とした新しい色弱補正法の提案」|rn|電子情報通信学会論文誌 Vol.J94-A, No.2, pp.127-137, Feb. 2011."

    望月理香, 中村竜也, 趙晋輝

  • 電子情報通信学会論文賞

    2011.6   電子情報通信学会   "「色弁別閾値を基準とした新しい色弱補正法の提案」|rn|電子情報通信学会論文誌 Vol.J94-A, No.2, pp.127-137, Feb. 2011."

    望月理香, 中村竜也, 趙晋輝

  • 2005年芸術科学会第21回NICOGRAPH論文コンテスト優秀論文賞

    2005.11   芸術科学会   「Lie代数曲面モデルの詳細度制御付きJava Viewer」

    相良直哉, 桑原明栄子, 牧野光則, 趙晋輝

  • "Jinhui Chao, Miho Hoshino, Tasuku Kitamura, Ken Masuda``A new pyramid network and its generalization performance, pp.2811-2816"

    2001.7   "Proceeding of IJCNN2001, Washinton DC"  

  • Jinhui Chao, Miho Hoshino, Tasuku Kitamura, Ken Masuda``A Multilayer RBF network and its supervised learning, pp.1195-2000

    2001.7   Proceeding of IJCNN2001, Washinton DC  

  • Jinhui Chao, Miho Hoshino, Tasuku Kitamura, Ken Masuda``A new pyramid network and its generalization performance, pp.2811-2816

    2001.7   Proceeding of IJCNN2001, Washinton DC  

  • "Jinhui Chao, Miho Hoshino, Tasuku Kitamura, Ken Masuda``A Multilayer RBF network and its supervised learning, pp.1195-2000"

    2001.7   "Proceeding of IJCNN2001, Washinton DC"  

  • Best Presentation Award

    2001.4   "IJCNN-WCNN International Joint Conference on Neural Networks, IJCNN2002, Washinton. DC"  

  • Best Presentation Award

    2001.4   IJCNN-WCNN International Joint Conference on Neural Networks, IJCNN2002, Washinton. DC  

  • 平成2年度論文賞

    1991.6   電子情報通信学会   「適応信号処理における高速適応アルゴリズムの提案」、電気電子情報通信学会全国大会

    エクトル・ペレス, 辻井重男

  • 平成2年度篠原記念学術奨励賞

    1991.3   電子情報通信学会   時変系の漸近安定条件及び有限性の制御について IIR型エコーキャンセラGIVEに関する一検討

    坂庭好一, 辻井重男, 河辺忍

  • 昭和63年度論文賞

    1989.6   電子情報通信学会   「ダブルトーク時に制御可能な三端子対エコーキャンセラの提案」、電子情報通信学会論文誌Ａ分冊88年２月号

    辻井重男

  • 21世紀を拓く先端技術論文 優秀論文賞

    1989.5   日本工業新聞社   「ダブルトーク時に制御可能な三端子対エコーキャンセラの提案」

    辻井重男

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Research Projects

  • 楕円曲線に基づく安定性の高い暗号システムに関する研究

    1997.4 - 1999.3

    文部科学省  科学研究費補助金（基盤研究C2） 

    　 More details

    Grant type：Competitive

    Grant amount： \2700000

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  • 安定性と大域収束性を保証する新しいIIR型適応信号処理アルゴリズムに関する研究

    1996.4 - 1997.3

    文部科学省  科学研究費補助金（基盤研究C2） 

    　 More details

    Grant type：Competitive

    Grant amount： \1300000

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  • 大域的な収束性と汎化能力を保障する多層人工神経回路網の新しい学習方式に関する研究

    1994.4 - 1995.3

    文部科学省  科学研究費補助金（一般研究C） 

    　 More details

    Grant type：Competitive

    Grant amount： \1100000

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