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I J C N N' 9 31 NA G 0Y A

PROCEEDINGS OF 1993 INTERNATIONAL JOINT CONFERENCE ON NEURAL NETWORKS

VOLUME 1 OF 3

NAGOYA CONGiRESS CENTER OCTOBER 25-2!9,1993,

CO-sponsored by A Japanese Neural Network Society IEEE Neural Networks Council (NNC) &a (JNNS)

International Neural Network Society ENNS European Neural Network Society (ENNS) (& (INNS)

E The Society of Instrument and Control The Institute of Electronics, Information and 3 Engineers (SICE) Eic Communication Engineers (IEICE) Chubu Bureau of International Trade and Industry Aichi Prefecture City of Nagoya Nagoya Chamber of Commerce and Industry Chubu Economic Federation Nagoya Industrial Science Research Institute The Chubu Industrial Advancement Center I JCNN'93-NAGOYA

Supported by

ADVANTEST CORPORATION Nippondenso Co., Ltd. CORPORATION Company, Limited CAS10 SCIENCE PROMOTION FOUNDATION OSAKA GAS CO., LTD. CHUBU ELECTRIC POWER CO., INC. FUNDAMENTAL RESEARCH LABORATORIES Fuji Co., Ltd. Research Foundation for the Electrotechnology of Chubu FWJITSU LIMJTED RICQH CO., LTD. PHOTONICS K.K. Senri International Information Institute HAYAO NAKAYAMA FOUNDATION FOR SCIENCE & TECHNOLOGY AND CULTURE Corporation , Ltd. SUMITOMO ELECTRIC INDUSTRIES, LTD. IBM Japan, Ltd. Support Center for International Communications Foundation Advanced Telecommunications Technology Research1 International Information Science Foundation The Asahi Glass Foundation Japan Broadcasting Corporation The Japan Iron and Steel Federation Science and Technical Research Laboratories The Telecommunications Advancement Foundation Makita Corporation The Electric Power Co., Ltd. Matsushita Electric Industrial Co., Ltd. TOHO GAS CO., LTD. CORPORATION TOKYO GAS CO., LTD. MITSUBISHI HEAVY INDUSTRIES, LTD. Corporation NEC Corporation Research and Development Group TOYOTA MOTOR CORPORATION NIPFQN TELEGRAPHAND TELFSHNE CORF'OFU'IYON

In cooperation with

Acoustical Society of Japan Japan Society for Industrial and Applied Mathematics Architectural Institute of Japan Japan Society for Precision Engineering Atomic Energy Society of Japan Japan Society for Simulation Technology Audio-visual Information Research Group Japan Society for Software Science and Technology Behaviormetric Society of Japan Japan Society of Applied Physics Biophysical Society of Japan Japan Socitey of Civil Engineers Information Processing Society of Japan Japan Society of Mechanical Engineers InInstitute of Electrical Engineers of Japan Japan Society of Institute of Image Electronics Engineers of Japan Medical Electronics and Biological Engineering Institute of Systems, Control and Information Engineers Japanese Cognitive Science Society Institute of Television Engineers of Japan Japanese Society for Artificial Intelligence International Foundation for Artificial Intelligence Operations Research Society of Japan Iron and Steel Institute of Japan Physical Society of Japan Japan Association for Medical Informatics Robotics Society of Japan Japan Ergonomics Research Society Society for Fermentation and Bioengineering, Japan Japan Neuroscience Society Society of Automotive Engineers of Japan, Inc. Japan Society for Aeronautical and Space Sciences Society of Chemical Engineers, Japan Japan Society for Fuzzy Theory and Systems

iii WELCOME REMARKS TO IJCNN'93-NAGOYA

Welcome to the International Joint Conference on Neural Networks (IJCNNP3-NAGOYA). It is our great pleasure to have an opportunity to host the IJCNN193-NAGOYA,the largest and the first conference in Japan in the area of the Neural Networks cosponsored by all the major neural networks societies and councils in the world. Nagoya and its surroundings have many electro-mechanical industries. The area, as one of the industrial technology centers of the world, has been involved in the research and development of innovative technologies and has applied them to actual products. We believe that the neural networks technology is one of the key technologies bringing us a prosperous future. Recent development of Neural Networks technology, together with the results from the Fuzzy Logic and the Genetic Algorithms, has emerged a1 new paradigm that enables flexible and efficient information processing. This conference aims to give an opportunity to the leading researchers spread among various fields for discussing the perspectives and the future trend of the field. The technical sessions including the round table discussion and the special session on "Real World Computing Program," contain the recent important results in both theoretical and application research in the field. You surely enjoy the sessions and discussions. We would like to thank the members of our committees, who have done excellent jobs for this conference, We do hope that this conference will be very successful and fruitful to all of you and will contribute to the development of this emerging technology.

a. 24dt Akito Naito Fumio Harashima Chair, Council for Conference Organization Advisory Committee Chair IJCNN'93-NAGOYA IJCNN'93-NAGOYA

95kqM Shun-ichi Amari Toshio Fukuda Organizing Chair Steering Chair IJCNN'93 -NAGOYA IJCNN'9 3-NAGOYA ORGANIZATION OF IJCNN'93-NAGOYA

Council for Shozo Iwasaki, Nippon Telegraph and Telephone Corporation Conference Organization Robert J. Marks 11, University of Washington Kakio Mitsui, The Tokyo Electric Power Co., Ltd. Chair: Tsuneo Nakahara, Sumitomo Electric Industries, Ltd. Akito Naito, Nagoya Chamber of Commerce & Industry Takane Okuno, Aichi Prefecture Shiro Sasaki, Toyota Motor Corporation Vicecochairs: Yoshikazu Sawaragi, Institute of System Research Tetsuo Fujimoto, Nagoya Universio Michiyuki Uenohara, NEC Corporation Takane Okuno, Aichi Prefecture Toshio Hiraiwa, City of Nagoya Organizing Committee Members: Hajime Akutsu, Chubu Economic Federation Shun-ichi Amari, University of Tokyo Chair: Toshio Fukuda, Nagoya University Shun-ichi Am&, University of Tokyo Fumio Harashima, University of Tokyo Nariaki Ida, Nagoya Industrial Science Research Secretaries: Ryoji Suzuki, University Tokyo Institute of Yoshiki Kobayashi, Nagoya Chamber Commerce & Minoru Tsukada, Tamagawa Universio of Yoshiki Uchikawa, Nagoya University Industry Kenzo Mochizuki, City of Nagoya Tom Shinohara, Aichi Prefecture Members: Yasuyoshi Suzuki, The Chubu Industrial Advancement Ikuo Anada, Oki Electric Industry Co., Ltd. Center Kuniya Fukuda, Senri International Information Yoshiki Uchikawa, Nagoya University Institute Toshio Fukuda, Nagoya University Secretaries: Akio Fukumura, Chukyo University Kunihiko Fukushima, Osaka University Masayuki Yamada, Aichi Prefecture Nozomu Hoshimiya, Tohoku University Takanori Hirono, City of Nagoya Atsunobu Ichikawa, Institute of Environmental Advisors: Studies Akinobu Yasumoto, Chubu Bureau of International Tokuta Inoue, Toyota Motor Corporation Trade and Industry Tatsuo Ishiguro, NEC Corporation Reiji Suzuki, Aichi Prefecture Takehiro Izumi, Japan Broadcasting Corporation Science and Techical Research Laboratories Takeyoshi Nishio, City of Nagoya Toyohisa Kaneko, IBM Ryuichi Kato, Nagoya Chamber of Commerce & Industry Toshiro Koga, Kyushu University Hisao Kosugi, Chubu Electric Power Co., Inc. Gen Matsumoto, Electrotechnical Laboratory Noboru Miyawaki, Nippon Telegraph and Telephone Advisory Committee Corporation Yoshikazu Nishikawa, Kyoto University Chair: Takashi Okabe, Nippondenso Research Laboratories Fumio Harashima, University of Tokyo Eichi Ono, Mitsubishi Electric Corporation Hidemine Ono, Mitsubishi Heavy Industries, Ltd. Vicecochairs: Morio Onoe, Richo, Co., Ltd. Russell Eberhart, Research Triangle Institute Reiji Sano, Matsushita Research Institute, Tokyo, Inc. Teuvo Kohonen, Helsinki University of Technology Tadashi Sasaki, Sharp Corporation Paul Werbos, National Science Foundation Shigeru Sato, Laboratories Ltd. Jun-ichi Shimada, Electrotechnical Laboratory Members: Hiroshi Shimizu, University of Tokyo Hideo Aiso, Noboru Sugie, Nagoya University Katsuhiko Fuji, Kobe Steel Ltd. Yoshiji Suzuki, K.K. Toshio Hiraiwa, City of Nagoya Tsutomu Takada, Nippon Steel Corporation Kenji Hiwatashi, Myojo University Seiichi Takayanagi, Toshiba Corporation Takemochi Ishii, The Tokyo Electric Power Co., Ltd. Yasutsugu Takeda, Hitachi, Ltd. Masao Ito, The Institute of Physical and Chemical Hiroaki Tanaka, Tokyo Gas CO,Ltd. Research (RIKEN)

VU Shizuo Tatsuoka, Corporation Ltd. Takashi Omori, Tokyo University of Agriculture and Yoto Tonouchi, City of Nagoya Technology Kan Ura, University of Tokyo Noboru Onishi, Nagoya University Shiro Usui, Toyohushi University of Technology Hide-aki Saito, Tamagawa University Seiichi Watanabe, Sony Corporation Noboru Sugie, Nagoya University Koji Yada, CSK Research Institute Corporation Ryoji Suzuki, University of Tokyo Eiji Yodogawa, Kogakuin University Minoru Tsukada, Tamagawa University Yoshiki Uchikawa, Nagoya University Shiro Usui, Toyohashi University of Technology Fund Raising Committee

Chair: General Affair Committee Shozo Iwasaki, Nippon Telegraph and Telephone Corporation Chair: Fumihito Arai, Nagoya University Secretaries: Kunihiro Kato, Nippon Telegraph and Telephone Members: Corporation Shunichiro Oe, University of Tokushima Ryoji Suzuki, University of Tokyo Yukio Sato, Nagoya Institute of Technology Takanori Shibata, Mechanical Engineering Laboratory Members: Katsuhiko Fujii, Kobe Steel Ltd. Tokuta Inoue, Toyota Motor Corporation Finance Committee Yasuo Kato, NEC Corporation Masaya Nakajima, Matsushifa Research Institute Tokyo, Chairs: Inc. Hide-aki Saito, Tamagawa University Takashi Okabe, Nippondenso Research Laboratories Roy S. Nutter Jr., West Virginia University Eichi Ono, Mitsubishi Electric Corporation Hiroshi Ow&, Chubu Electric Power Co., Inc. Members: Ryoichi Sugioka, Fujitsu, Ltd. Koyu Fukunishi, Hitachi, Ltd. Seiichi Takayanagi, Toshiba Corporation Shintaro Ishijima, Tokyo Metropolitan Institute of Yasutsugu Takeda, Hitachi, Ltd. Technology Seiichi Watanabe, Sony Corporation Takayuki Ito, Japan Broadcasting Corporation Science Nobuo Yumoto, Sumitomo Electric Industries, Ltd. and Technical Research Laboratories Kazuo Kyuma, Mitsubishi Electric Corporation Eiji Yodogawa, Kogakuin University Steering Committee Chair: Publicity Committee Toshio Fukuda, Nagoya University Chairs: Secretaries: Shiro Usui, Toyohashi University of Technology Kazuhiro Kosuge, Nagoya University Evangelia Micheli-Tzanakou, Rutgers University Fumihito Arai, Nagoya University

Members: Secretary: Shun-ichi Amari, University of Tokyo Akira Iwata, Nagoya Institute of Technology Kunihiko Fukushima, Osaka University Takeshi Furuhashi, Nagoya University Fumio Harashima, University of Tokyo Members: Hideki Hashimoto, University of Tokyo Shozo Fujiwara, NEC Corporation Masanori Idesawa ,University of Electro- Kenkichi Fukurotani, Toyama University Communications Ryoko Futami, Tohoku University Naohiro Ishii, Nagoya Institute of Technology Fumio Hara, Science University of Tokyo Akira Iwata, Nagoya Institute of Technology Hidetoshi Ikeno, Toyohashi University of Technology Hisato Kobayashi, Hosei University Koichi Inoue, Kyoto University Takashi Nagano, Hosei University Koji Ito, Toyohashi University of Technology Takashi Ohara, Nippon Telegraph and Telephone Mitsuo Maeda, Mitsubishi Electric Corporation Corporation Kiyotoshi Matsuoka, Kyushu Institute of Technology Yoichi Okabe, University of Tokyo Yasushi Shimeki, Matsushita Electric Industrial Co., Shigeru Okuma, Nagoya University Ltd. Noboru Sonehara, NU,Human Inte$ace Laboratories Masatoshi Tokita, Kisarazu National College of Social Event Committee Technology Chair: Kazuhiro Kosuge, Nagoya University Publication Committee Member: Chair : Kiyoshi Ohishi, Nagaoka University of Technology Yoichi Okabe, University of Tokyo Members: Tutorial Committee Masanori Idesawa, University of Electro- Communications Chair: Manabu Kitagawa, University of Tokyo Minoru Tsukada, Tamagawa University Masahiko Koike, NEC Corporation Sadayoshi Mikami, Hokkaido University Secretary: Akinori Mori, Tamagawa University Takashi Omori, Tokyo University of Agriculture and Shun-suke Sato, Osaka University Technology Ichiro Tohyama, Nippon Steel Corporation Keigo Watababe, Saga University Members: Kazuo Yana, Hosei University Ken-ichi Hara, Ishinomaki Sensyu University Shuji Yoshizawa, University of Tokyo Hiroshi Harashima, University of Tokyo Ken Kasai, Osaka University Hideki Kawahara, ATR Human Information Processing Exhibits Committee Research Laboratories Shigeyoshi Kawarai, Anritsu Corporation Chairs: Kazuhiro Matsuo, Fujitsu, Ltd. Masanori Idesawa, University of Electro- Takeshi Shima, Toshiba Corporation Communications Mitsuo Wada, National Institute of Bioscience and Shigeru Okuma, Nagoya University Human Technology Tetsuro Yabuta, Nippon Telegraph and Telephone Members: Corporation Toyokazu Mitsuoka, Kisarazu National College of Yoko Yamaguchi, Tokyo Denki University Technology Takeshi Yamakawa, Kyushu Institute of Technology Shigeru Omatsu, University of Tokushima Tatsuya Suzuki, Nagoya University Technical Tour Committee

Local Arrangement Committee Chair: Hideki Hashimoto, University of Tokyo Chair: Yoshiki Uchikawa, Nagoya University Members: Kazutoshi Gohara, Chubu University Secretary: Fumio Kojima, Osaka Institute of Technology Takeshi Furuhashi, Nagoya University

Members: Naohiro Ishii, Nagoya Institute of Technology Akio Ishiguro, Nagoya University Hideaki Kato, Nippondenso Co.,Ltd.

Industry Forum Committee

Chairs: Hisato Kobayashi, Hosei University Noboru Ohnishi, Nagoya University Member: Kan Ura, University of Tokyo Program Committee Atsushi Iwata, NTT LSI Laboratory Ani1 Jain, Michigan State University, U.S.A. Chair: Michael Jordan, Massachusetts Institute of Technology, Kunihiko Fukushima, Osaka University U.S.A. Hideki Kawahara, ATR Human Informution Processing Cochairs: Research Laboratories Robert Marks, I1 (IEEE NNC), University of Mitsuo Kawato, ATR Human Information Processing Washington, USA. Research Laboratories Harold Szu (INNS), Naval Surface Warfare Center, James Keller, University of Missouri-Columbia, U.S.A. USA. Yoshimasa Kimura, NTT Human Interface Laboratories Rolf Eckmiller (ENNS), University of Bonn, Germany Shinzo Kitamura, Kobe University Noboru Sugie, Nagoya University Hisato Kobayashi, Hosei University Laszlo Koczy, Technical University of Budapest, Secretaries: Hungary Naohiro Ishii, Nagoya Institute of Technology Jan Koenderink, Rijksuniversiteit te Utrecht, Masumi Ishikawa, Kyushu Institute of Technology The Netherlands Takashi Nagano, Hosei University Teuvo Kohonen, Helsinki University of Technology, Finland Members: Bart Kosko, University of Southern California, USA. Kazuyuki Aihara, University of Tokyo Kazuhiro Kosuge, Nagoya University Daniel Amit, Imtituto Nazionale di Fiscu Nucleure, Koji Kurata, Osaka University Universita di Roma, Italy Kazuo Kyuma, Mitsubishi Electric Corporation James Anderson, Brown University, USA. Yann Le Cun, AT&T Bell Laboratories, U.S.A. Yuichiro Anzai, Keio University Soo-Young Lee, Korea Advanced Institute of Science Fumihito Arai, Nagoya University and Technology, Korea Masahiko Arai, Toshibu Corporation Yillbyung Lee, Yonsei University,Korea Kazuo Asakawa, Fujitsu Laboratories Ltd. Ikuo Matsuba, Hitnchi, Ltd. Hideki Asoh, Electrotechnical Laboratory Gen Matsumoto, Electrotechnical Laboratory Norio Baba, Osaka University of Education James McClelland, Carnegie-Mellon University, U.S.A. Sung Bang, Pohang Institute of Science&Technology, Ennio Mingolla, Boston University, U.S.A. Korea Sei Miyake, Japan Broadcasting Corporation Science James Buckley, The Univerity of Alabama at and Technical Research Laboratory Birmingham, U.S.A. Yoichi Muraoka, Waseda University Thomas Caudell, Boeing Computer Services, U.S.A. Seiichi Nakagawa, Toyohashi University of Technology Jai Choi, Boeing Computer Services, USA. Shohachiro Nakanishi, Tokai University Leon Chua, University of California, USA. Kumpati Narendra, Yale University, USA. Leon Cooper, Brown University, U.SA. Kazuhisa Niki, Electrotechnical Laboratory Rodney Cotterill, Technical University of Denmark. Erkki Oja, Lappeenranta University of Technology, Denmark Finland Jerome Feldman, International Computer Science Yoichi Okabe, University of Tokyo Institute, USA. Shigeru Okuma, Nagoya University FranGoise Fogelman-Soulie, Universite' de Paris Sud Takashi Omori, Tokyo University of Agriculture & Centre D'orsay, France Technology Masahiko Fujita, Communication Research Laboratory Noboru Onishi, Nagoya University Shozo Fujiwara, NEC Corporation Nobuyuki Otsu, Electrotechnical Laboratory Toshio Fukuda, Nagoya University Mignon Park, Yonsei University,Korea Ryoko Futami, Tohoku University Andras Pellionisz, NASA Ames Research Center, USA. C. Lee Giles, NEC Research Institute, Inc., USA. Tomaso Poggio, Massachusetts Institute of Technology, Kazutoshi Gohara, Chubu University U.SA. Stephen Grossberg, Boston University, USA. Demetri Psaltis, California Institute of Technology, Madan Gupta, University of Saskatchewan, Canada U.S.A. Dan Hammerstrom, Adaptive Solutions, Inc., U.S.A. Edmund Rolls, University of Oxford, U.K. Hideki Hashimoto, University of Tokyo David Rumelhart, Stanford University, U.S.A. Yoichi Hayashi, Ibaraki University Hide-aki Saito, Tamugawa University Robert Hecht-Nielsen, HNC, Inc., USA. Zong Sha, Chinese Institute of Electronic, Jenq-Neng Hwang, University of Washington, USA. Yasuharu Shimeki, Matsushitu Electric Industrial Co., Masanori Idesawa, The Institute of Physical and Ltd. Chemical Research Shigem Shinomoto, University of Oxford, U.K. Masatoshi Ishikawa, University of Tokyo Sara Solla, AT&T Bell Laboratories, USA. Takayuki Ito, Japan Broadcasting Corporation Science Ryuzo Takiyama, Kyushu University of Design Science and Technical Research Laboratories Keiji Tanaka, The Institute of Physical and Chemical Yoshifusa Ito, Toyohashi University of Technology Research Akira Iwata, Nagoya Institute of Technology John Taylor, King's College, University of London, U.K.

X Hona-Nicolai Teodorescu, Polytechnical University of lasi, Romania Keisuke Toyama, Kyoto Prefectural School of Medcine Minoru Tsukada, Tamagawa University Evangelia Micheli-Tzanakou,Rutgers University, U.S.A. Yoshiki Uchikawa, Nagoya University Yoshinori Uesaka, Science University of Tokyo Yoji Uno, ATR Human Information Processing Research Laboratories Shiro Usui, Toyohashi University of Technology Thomas Vogl, Environmental Research Institute of Michigan, U.SA. Werner von Seelen, Ruhr-University Bochum, Germany Paul Werbos, National Science Foundation, U.S.A. Halbert White, University of California,San Diego, U.SA. Bemard Widrow, Stanford University, USA. Thomas Wolf, Siemens AG, Germany Minoru Yamada, Hitachi, Ltd. Tom Yamaguchi, Utsunomiya University Syozo Yasui, Kyushu lnstitute of Technology Shuji Yoshizawa, University of Tokyo Yi Zhong,Beijing University of Post and Telecommunication, China Hans-Jurgen Zimmermann, lnstitut fiir Wirtschaftswissenscha~en,Germany