Yu Nishiyama (Ph.D.)

[Japanese | English ]

Affiliation :Dept. of Computational Intelligence and Systems Science, Tokyo Institute of Technology, Japan
Lab : Sumio Watanabe Group in Precision and Intelligence Lab., Tokyo Institute of Technology.
Supervisor : Prof. Sumio Watanabe.
Mailing Address : Mailbox R2-5, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8503, Japan
Email : nishiyudesu(at)cs.pi.titech.ac.jp
Phone : +81-45-924-5018

Current Research Interests : Statistical Learning Theory, Machine Learning, Statistical Mechanical Informatics, Brain Information Processing, Statistical Physics.
Research Topics :
Curriculum Vitae Publication List

NEWS


Activities

  • 2008 12/20

    Y. Nishiyama, Y. Tonosaki, S. Watanabe, "A CDMA Multiuser Demodulation Algorithm Based on NCCCP"
    IEICE Technical Report, vol.108, No.372, pp.49-54, December, 2008. (Japanese)

  • 2008 12/15〜12/17

    Y. Nishiyama "An Extension of the CCCP Algorithm for the Kikuchi Free Energy",
    DEX-SMI2008, December, 2008. (Japanese)

  • 2008 10/29〜10/31

    Y. Nishiyama, Y. Tonosaki, S. Watanabe, "An Extension of the CCCP Algorithm for the Kikuchi Free Energy and A CDMA Multiuser Demodulation Algorithm",
    11th Workshop on Information-Based Induction Sciences (IBIS2008), A19, October, 2008. (Japanese)

  • 2008 9/3〜6

    "Generalization of Concave and Convex Decomposition in Kikuchi Free Energy",
    Yu Nishiyama, Sumio Watanabe, Proc. of ICANN2008, LNCS 5163, pp.51-60, Prague, Czech Republic, September, 2008. paper(pdf), slide(pdf)

  • 2008 6/22〜26

    "On the Minima of Bethe Free Energy in Gaussian Distributions",
    Yu Nishiyama, Sumio Watanabe, Proc. of ICAISC2008, LNAI 5097, pp.1075-1086, Zakopane, Poland, June, 2008. paper(pdf), poster(pdf)

  • 2008 3/22〜26

    Y. Nishiyama, S. Watanabe, "An Extension of the CCCP Algorithm for the Kikuchi Free Energy",
    63rd Annual Meeting, Physical Society of Japan, 25pPSB-4, March, 2008. (Japanese)

  • 2008 3/12〜14

    Y. Nishiyama, S. Watanabe, "An Extension of CCCP Algorithm for Bethe Free Energy",
    IEICE Technical Report, vol.107, No.542, pp.85-90, March, 2008. (Japanese)

  • 2008 1/15〜16

    Y. Nishiyama, S. Watanabe, "Analytical and Numerical Solutions of Bethe Approximation in Normal Distributions",
    IEICE Technical Report, vol.107, No.413, pp.1-6, January, 2008. (Japanese)

  • 2007 11/5〜7

    Y. Nishiyama, S. Watanabe, "Theoretical Analysis of Bethe Approximation in Gaussian Distribution",
    Proceedings of 10th Workshop on Information-Based Induction Sciences (IBIS2007), pp.177-183, November, 2007. (Japanese)

  • 2007 9/9〜13

    Y. Nishiyama, S. Watanabe, "Theoretical Analysis of Accuracy of Gaussian Belief Propagation",
    Proc. of ICANN2007, Part I, LNCS 4668, pp.29-38, Porto, Sep., 2007. paper(pdf) slide(ppt)

  • 2007 5/21

    Y. Nishiyama, S. Watanabe, "Theoretical Analysis of Accuracy of Belief Propagation in Gaussian Models",
    IEICE Technical Report, vol.107, No.50, pp.23-28, May, 2007. paper(pdf)

  • 2007 5/21

    Y. Nishiyama, S. Watanabe, "Stochastic Complexity of Complete Bipartite Graph-Type Boltzmann Machines in Mean Field Approximation",
    Electronics and Communications in Japan, John Wiley & Sons, vol.90, No.9, pp.1-9, 2007.

  • 2006 10/3〜6

    Y. Nishiyama, S. Watanabe, "Asymptotic Behavior of Stochastic Complexity of Complete Bipartite Graph-type Boltzmann Machines",
    Proc. of ICONIP2006, Part I, LNCS 4232, pp.417-426, Hong Kong, Oct., 2006. paper(pdf) slide(ppt)

  • 2006 7/14

    Y. Nishiyama, S. Watanabe, "Asymptotic Behavior of Free Energy of General Boltzmann Machines in Mean Field Approximation",
    IEICE Technical Report, vol.106, No.163, pp.1-6, July, 2006. (Japanese)