Visualization of a picture for information science and computer science

2010 Fiscal Year Self-evaluation Report

• Project/Area Number: 20240020
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Sensitivity informatics/Soft computing
• Research Institution: The University of Tokyo
• Principal Investigator: OKADA Masato The University of Tokyo, 大学院・新領域創成科学研究科, 教授 (90233345)
• Project Period (FY): 2008-04-08 – 2013-03-31
• Keywords: 情報統計力学 / 可視化 / 次元圧縮 / クラスタリング / 大規模データ

Research Abstract

本研究の目的は,経験や学習から形成されるヒトの心の中の描像(picture)を,数値計算や計測のデータから客観的手法で可視化する手法を研究することである.具体的には,情報科学と計算機科学での描像を,物理学のスピン系で発展した手法を用いて可視化する

Research Products

• [Journal Article] Extracting state transition dynamics from multiple spike trains using hidden Markov models with correlated Poisson distribution (2010)
  • Author(s): K.Katahira, J.Nishikawa, K.Okanoya, M.Okada
  • Journal Title: Neural Computation Vol.22, No.9 Pages: 2369-2389
  • Peer Reviewed
• [Journal Article] Visualization of multi-neuron actiity by simultaneous optimization of clustering and dimension reduction (2010)
  • Author(s): N.Matsumoto, S.Akaho, Y.Sugase-Miyamoto, M.Okada
  • Journal Title: Neural Networks Vol.23, No.6 Pages: 743-751
  • Peer Reviewed
• [Journal Article] Mismatched decoding in the brain (2010)
  • Author(s): M.Oizumi, T.Ishi, K.Ishibashi, T.Hosoya, M.Okada
  • Journal Title: Journal of Neuroscience Vol.30, No.13 Pages: 4815-4826
  • Peer Reviewed
• [Journal Article] Applying manifold learning to plotting approximate contour trees (2009)
  • Author(s): S.Takahashi, I.Fujishiro, M.Okada
  • Journal Title: IEEE Transactions on Visualization and Computer Graphics Vol.15, No.6 Pages: 1185-1192
  • Peer Reviewed
• [Journal Article] Variational Bayesian mixture model on a subspace of exponential family distributions (2009)
  • Author(s): K.Watanabe, S.Akaho, S.Omachi, M.Okada
  • Journal Title: IEEE Transactions on Neural Networks Vol20, No.11 Pages: 1783-1796
  • Peer Reviewed
• [Presentation] Effects of Synaptic Weight Diffusion on Learning in Decision Making Networks (2010)
  • Author(s): K.Katahira, K.Okanoya, M.Okada
  • Organizer: Neural Information Processing Systems (NIPS 2010)
  • Place of Presentation: Vancouver, Canada.
  • Year and Date: 2010-12-08
• [Presentation] Switching state space model for simultaneously estimating state transitions and nonstationary firing rates (2010)
  • Author(s): K.Takiyama, M.Okada
  • Organizer: Neural Information Processing Systems (NIPS2010)
  • Place of Presentation: Vancouver, Canada.
  • Year and Date: 2010-12-06
• [Presentation] 階層的な記憶パターンを持つ自己相関型連想記憶モデルのPCAによる解析 (2010)
  • Author(s): 塩塚丁二郎, 永田賢二, 福島孝治, 岡田真人, 井上真郷
  • Organizer: 電子情報通信学会技術報告(NC2009-158.)
  • Place of Presentation: 玉川大学
  • Year and Date: 2010-03-11
• [Presentation] 混合ベルヌーイ分布を用いたクラスタリングによる連想記憶モデルの解析 (2010)
  • Author(s): 永田賢二, 福島孝治, 塩塚丁二郎, 井上真郷, 岡田真人
  • Organizer: 電子情報通信学会技術報告(NC2009-159.)
  • Place of Presentation: 玉川大学
  • Year and Date: 2010-03-11
• [Presentation] A general framework for investigating how far the decoding process in the brain can be simplified (2008)
  • Author(s): M.Oizumi, T.Ishii, K.Ishibashi, T.Hosoya, 岡田真人
  • Organizer: Neural Information Processing Systems (NIPS2008)
  • Place of Presentation: Vancouver, Canada.
  • Year and Date: 2008-12-10
• [Presentation] A Bayesian Approach for Extracting State Transition Dynamics from Multiple Spike Trains (2008)
  • Author(s): K.Katahira, J.Nishikawa, K.Okanoya, M.Okada
  • Organizer: Neural Information Processing Systems (NIPS2008)
  • Place of Presentation: Vancouver, Canada.
  • Year and Date: 2008-12-09