研究者詳細 - 田村　宏樹

Immune system is a network of cells, tissues, and organs that work together to defend the body against attacks by foreign invaders. Self/nonself discrimination ability based on the pattern recognition of molecular is a key feature in the defense of the host organism. T and B lymphocytes (we also call them T cells and B cells respectively) are two main types of immune cells which play principal roles in immune response. They express receptors on their surfaces to determine a given antigen. In this paper, we use metaphors extracted from natural immune systems and propose an artificial immune system model by considering both T cells dependent antigen recognition and T cells independent antigen recognition. We illustrate the ability of the proposed model in clustering analog patterns and recognizing noisy binary patterns. Simulation results are presented in support of the model and compared the results with that of other artificial immune models. © Medwell Online, 2006.

Scopus

Objective Function Adjustment Algorithm for Combinatorial Optimization Problems

TAMURA Hiroki, ZHANG Zongmei, TANG Zheng, ISHII Masahiro

IEICE transactions on fundamentals of electronics, communications and computer sciences 89 ( 9 ) 2441 - 2444 2006年9月

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：一般社団法人電子情報通信学会

An improved algorithm of Guided Local Search called objective function adjustment algorithm is proposed for combinatorial optimization problems. The performance of Guided Local Search is improved by objective function adjustment algorithm using multipliers which can be adjusted during the search process. Moreover, the idea of Tabu Search is introduced into the objective function adjustment algorithm to further improve the performance. The simulation results based on some TSPLIB benchmark problems showed that the objective function adjustment algorithm could find better solutions than Local Search, Guided Local Search and Tabu Search.

Objective Function Adjustment Algorithm for Combinatorial Optimization Problems 査読あり

H. Tamura,Z. Zhang,Z. Tang,M. Ishii

IEICE Trans. on Fundamentals Vol.E89-A ( No.9 ) 2441 - 2444 2006年9月

記述言語：英語掲載種別：研究論文（学術雑誌）

Stereograms that consist of Veridical Image for One Eye and Lightness Afterimage for the Other Eye 査読あり

M. Ishii,Z. Tang,H. Tamura

Vision Sciences Society 6th Annual Meeting No. 654 2006年5月

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

目的関数調整法を用いたスケジューリング問題の一解法査読あり

田村宏樹,唐政,石井雅博,山下雅史

電子情報通信学会論文誌D Vol.J89-D ( No.5 ) 901 - 910 2006年5月

記述言語：日本語掲載種別：研究論文（学術雑誌）

Affinity Based Lateral Interaction Artificial Immune System 査読あり

H. Dai,Z. Tang,Y. Yu,H. Tamura

IEICE Trans. Inf. & Syst., Vol.E89-D ( No. 4 ) 1515 - 1524 2006年4月

記述言語：英語掲載種別：研究論文（学術雑誌）

Immune System Inspired Model and its Applications（共著）査読あり

H. Dai, Z. Tang, H. Tamura, Y. Yu

International Journal of Soft Computing 1(1) ( 1 ) 22 - 29 2006年3月

記述言語：英語掲載種別：研究論文（学術雑誌）

組合せ最適化問題に対する目的関数調整戦略の研究

田村宏樹

九州大学　システム情報　工博乙第0082号 2006年1月

記述言語：日本語掲載種別：研究論文（その他学術会議資料等）

多入力FG-MOSFETを用いた線形可変抵抗回路の設計と解析

串間宗夫, 淡野公一, 外山貴子, 田村宏樹, 稲葉基, 石塚興彦

電気関係学会九州支部連合大会講演論文集 2006 ( 0 ) 451 - 451 2006年

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：電気・情報関係学会九州支部連合大会委員会

DOI： 10.11527/jceeek.2006.0.451.0

多入力FG-MOSFETを用いた多値SRAMセルの構成に関する考察

串間宗夫, 淡野公一, 外山貴子, 田村宏樹, 稲葉基, 石塚興彦

電気関係学会九州支部連合大会講演論文集 2006 ( 0 ) 452 - 452 2006年

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：電気・情報関係学会九州支部連合大会委員会

DOI： 10.11527/jceeek.2006.0.452.0

Avoiding the Local Minima Problem in Backpropagation Algorithm with Modified Error Function（共著）査読あり

W. Bi, Z. Tang, X. Wang, H. Tamura

IEICE Trans. on Fundamentals Vol.E88-A ( 12 ) 3645 - 3653 2005年12月

記述言語：英語掲載種別：研究論文（学術雑誌）

An immune network with TH cell function and its applications to pattern recognition

Hiroki Tamura, Satoshi Ukon, Zheng Tang, Masahiro Ishii

Electronics and Communications in Japan (Part III) 88 ( 10 ) 12 - 22 2005年10月

記述言語：英語掲載種別：研究論文（学術雑誌）

Improving Local Optima of Local Search with Adjustable Multipliers（共著）査読あり

Z. Zhang, H. Tamura, Z. Tang, J. Ma

Proc. of 2005 Symposium on Nonlinear Theory and Its Application 2005年10月

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

Lagrangian Object Relaxation Neural Network for Combinatorial Optimization Problems（共著）査読あり

H. Tamura, Z. Zhang, M. Ishii, Z. Tang

Neurocomputing ( 68 ) 297 - 305 2005年10月

記述言語：英語掲載種別：研究論文（学術雑誌）

An immune network with T<inf>H</inf>cell function and its applications to pattern recognition

Tamura H., Ukon S., Tang Z., Ishii M.

Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi) 88 ( 10 ) 12 - 21 2005年10月

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi)

The immune function of living bodies has gained attention in engineering applications in a variety of fields. The authors proposed an immune network based on the immune response and researched its application to pattern recognition. The T H cell (helper T cell) that recognizes antigens in the immune response possesses diversity in order to fight various antigens and the function called interaction that communicates mutual information for correctly recognizing the antigens. The T H cell function successfully performs self-defense against unknown antigens. This paper proposes an immune network with the T H cell function added to an immune network we previously proposed. Specifically, we modeled the interaction and diversity functions of the T H cell in the matching process between input patterns and memory patterns. The proposed immune network is applied to a pattern recognition system of the alphabet and compared to a conventional method by numerical simulations. The proposed immune network exhibits lower incorrect recognition and rejections, and further improvement in the recognition rate over a conventional immune network by employing the process modeling the T H cell function. © 2005 Wiley Periodicals, Inc.

DOI： 10.1002/ecjc.20162

Scopus

Empirical Horopter determined by fusion time（共著）査読あり

M. Ishii, H. Tamura, Z. Tang

Vision Sciences Society 5th Annual Meeting 2005年5月

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

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