1. Papers in Proceedings (Refereed)

  1. T. Ikeguchi, K. Aihara, T. Matozaki, S. Itoh and T. Utsunomiya:
    ``Fractal Dimensional and Lyapunov Spectral Analysis on Electroencephalographic (EEG) Potentials,''
    Proceedings of Makuhari International Conference of High Technology, % Makuhari Convention Center, Chiba, JAPAN, pp.107-110, January 1991.

  2. T.Ikeguchi, M. Adachi, K. Judd and K. Aihara:
    ``A Chaotic Neuron Model and Its Network Dynamics,''
    Proceedings of The Second Symposium on Nonlinear Theory and Its Applications, % Shikanoshima, Fukuoka, JAPAN, July 15-17, Vol.1, pp.39-42, July 1991.

  3. T. Ikeguchi, M. Adachi and K. Aihara :
    ``Chaotic Neural Networks and Associative Memory,''
    Proceedings of International Workshop on Artificial Neural Network, % Granada, SPAIN, pp.17-24, September 1991.

  4. T. Ikeguchi and K. Aihara :
    ``Associative Dynamics in Chaotic Neural Networks,''
    Proceedings of IEEE International Joint Conference on Neural Network, % Westin Stanford and Westin Plaza, Singapore, November 18-21, Vol.3, pp.2282-2287, November 1991.

  5. T. Ikeguchi, K. Hatamoto and K. Aihara :
    ``Associative Memory and Chaotic Neural Networks,''
    Proceedings of International Symposium on Information Physics, % Kyushu Institute of Technology, Iizuka, Fukuoka, Japan, % July 12-15, pp.28-35, July 1992.

  6. T. Ikeguchi and K. Aihara :
    ``An Analysis of Electroencephalographic Potentials by Deterministic Nonlinear Prediction,''
    Proceedings of 2nd International Conference on Fuzzy Logic and Neural Networks, % Iizuka, Fukuoka, Japan, July 17-22, Vol.2, pp.967-970, July 1992.

  7. K. Hatamoto, T. Ikeguchi, T. Matozaki and K. Aihara:
    ``Dynamics of Chaotic Neural Networks and its Application to Associative Memory,''
    Proceedings of 1992 Symposium on Nonlinear Theory and Its Application, % Yumoto Fujiya Hotel, Hakone, Kanagawa, Japan, July 14-16, pp.25-28, July 1992.

  8. T. Ikeguchi and K. Aihara :
    ``An Analysis of Chaotic Neurodynamics by Deterministic Nonlinear Prediction,''
    Proceedings of IEEE International Joint Conference on Neural Networks, % Beijing, CHINA, November 3-6, Vol.2, pp.575-580, November 1992.

  9. K. Hatamoto, T. Ikeguchi, T. Matozaki and K. Aihara :
    ``An Analysis of Associative Dynamics in Chaotic Neural Networks,''
    Proceedings of 1992 IEEE International Joint Conference on Neural Networks, % Beijing, CHINA, November 3-6, Vol.2, pp.603-608, November 1992.

  10. T. Ikeguchi and K. Aihara :
    ``Nonlinear Modeling of biological time series,''
    Proceedings of The Seventh TOYOTA conference, Toyota Mikkabi Creative Center, % Mikkabi, JAPAN, October 31-November 3, pp.29-1 - 29-4, October 1993.

  11. S. Kimoto, T. Ikeguchi, T. Matozaki and K. Aihara:
    ``Deterministic Chaos and its Stationary Analysis,''
    Proceedings of The Seventh TOYOTA conference, % Toyota Mikkabi Creative Center, Mikkabi, Japan, % October 31-November 3, pp.29-1 - 29-4, October 1993.

  12. T. Ikeguchi, K. Judd, K. Aihara and T. Matozaki : (Invited Talk)
    ``Performance Evaluation of Deterministic Nonlinear Predictions,''
    Proceedings of 1993 International Symposium on Nonlinear Theory and its Applications, % Sheraton Waikiki Hotel, HAWAII, U.S.A., December 5-10, Vol.1, pp.263-268, December 1993.

  13. M. Takeshima, Y. Kobayashi, T. Ikeguchi, T. Matozaki and T. Irie:
    ``On the problems of box-counting algorithm and its improved method,''
    Proceedings of 1993 International Symposium on Nonlinear Theory and its Applications, % Sheraton Waikiki Hotel, HAWAII, U.S.A., December 5-10, Vol.1, pp.287-290, December 1993.

  14. S. Kimoto, T. Ikeguchi, K. Aihara and T. Matozaki :
    ``A Continuous Stationary Analysis with KM$_2$O-Langevin Equations,''
    Proceedings of 1993 International Symposium on Nonlinear Theory and its Applications, % Sheraton Waikiki Hotel, HAWAII, U.S.A., December 5-10, Vol.3, pp.967-970, December 1993.

  15. T. Ikeguchi and K. Aihara:
    ``Estimating correlation dimension from a single-variable time series using a reliable method,''
    Proceedings of the 3rd International Conference on Fuzzy Logic, Neural Nets and Soft Computing, % Iizuka, Japan, August 1-7, pp.487-488, August 1994.

  16. T. Ikeguchi and K. Aihara:
    ``An Analysis of Chaotic Neural Networks by Nonlinear Prediction,''
    Proceedings of 1994 Symposium on Nonlinear Theory and its Applications, % Green Pia Ibusuki, Kagoshima, Japan, October 6-8, pp.153-156, October 1994.

  17. T. Ikeguchi and K. Aihara:
    ``An Analysis of Associative Dynamics of Chaotic Neural Networks with External Stimuli,''
    Proceedings of the International Conference on Dynamical Systems and Chaos, % Tokyo, Japan, eds. N. Aoki, K. Shiraiwa and Y. Takahashi, Vol.1, pp.327-330, %World Scientific, 1994.

  18. T. Ikeguchi and K. Aihara:
    ``Nonlinear Prediction on Squid Axon Response,''
    Proceedings of the International Conference on Neural Networks, % Perth, Australia, November 27 - December 1, Vol.6, pp.3134-3139, 1995.

  19. M. Hasegawa, T. Ikeguchi, T. Matozaki and K. Aihara:
    ``Solving Combinatorial Optimization Problems by Nonlinear Neural Dynamics,''
    Proceedings of 1995 International Conference on Neural Networks, % Perth, Australia, November 27 - December 1, Vol.6, pp.3140-3145, 1995.

  20. T. Ikeguchi and K. Aihara:
    ``Nonlinear Prediction of Interspike Intervals Produced from Dynamical Systems,''
    Proceedings of 1995 International Symposium on Nonlinear Theory and Its Applications, % Las Vegas, U.S.A., December 10 - December 14, Vol.1, pp.121-126, December 1995.

  21. S. Ogawa, T. Ikeguchi, T. Matozaki and K. Aihara:
    ``Nonlinear Modeling by Radial Basis Function Networks,''
    Proceedings of 1995 International Symposium on Nonlinear Theory and Its Applications, % Las Vegas, U.S.A., December 10 - December 14, Vol.2, pp.829-832, December 1995.

  22. M. Hasegawa, T. Ikeguchi, T. Matozaki and K. Aihara:
    ``Optimizing Image Segmentation by Chaotic Dynamics,''
    Proceedings of 1995 International Symposium on Nonlinear Theory and Its Applications, % Las Vegas, U.S.A., December 10 - December 14, Vol.2, pp.1009-1012, 1995.

  23. T. Ikeguchi and K. Aihara:
    ``Nonlinear Prediction on Seismic Events in Japan,''
    Proceedings of 1996 International Symposium on Nonlinear Theory and Its Applications, % Kouchi, Japan, Oct.7-9, pp.285 - 288, October 1996.

  24. M. Hasegawa, T. Ikeguchi and K. Aihara:
    ``Solving Traveling Salesman Problems using A Heuristic Method with Chaotic Dynamics,''
    Proceedings of 1996 International Symposium on Nonlinear Theory and Its Applications, % Kouchi, Japan, Oct.7-9, pp.337-340, October 1996.

  25. A. Tomisaki, T. Ikeguchi and T. Matozaki:
    ``Deterministic Nonlinear Prediction of Time Series by Radial Basis Function Networks,''
    Proceedings of 1996 International Symposium on Nonlinear Theory and Its Applications, % Kouchi, Japan, Oct.7-9, pp.341-344, October 1996.

  26. T. Matozaki, A. Tanishita and T. Ikeguchi:
    ``Image Enhancement of Chest Radiography using Wavelet Analysis,''
    Proceedings of the 18 th Annual International Conference IEEE Engineering in Medicine and Biology Society, 3, November 1996.

  27. T. Ikeguchi, M. Satoh and T. Matozaki:
    ``The 3-Dimensional Clumsy Painter Method for Extracting Brain Regions from MRI,''
    Proceedings of the 18th Annual International Conference IEEE Engineering in Medicine and Biology Society, 36, October 1996.

  28. M. Yanase, M. Hasegawa, T. Ikeguchi and T. Matozaki:
    ``Extraction of Brain Tissues by Non-parametric Region Growing Method,''
    Proceedings of the 18th Annual International Conference IEEE Engineering in Medicine and Biology Society, 121, November 1996.

  29. T. Ikeguchi, K. Aihara and M. Hasegawa:
    ``An Analysis of Dynamics of Chaotic Neural Networks and Its Application to Combinatorial Optimization,''
    Proceedings of Artificial Life and Robotics, % Beppu, B-Con Plaza, February 18-20, February 1997.

  30. M. Hasegawa, T. Ikeguchi and K. Aihara:
    ``Solving Quadratic Assignment Problems by Chaotic Neurodynamics,''
    Proceedings of 1997 International Conference on Neural Information Processing and Intelligent Information Systems, % Dunedin, New Zealand, November 24-27, Vol.1, pp.182-185, November 1997.

  31. M. Yasukawa, T. Ikeguchi, M. Takagi and T. Matozaki:
    ``Nonlinear Image Interpolation by Radial Basis Function Networks,''
    Proceedings of 1997 International Conference on Neural Information Processing and Intelligent Information Systems, % Dunedin, New Zealand, November 24-27, Vol.2, pp.1199-1202, November 1997.

  32. T. Ikeguchi and Y. Horio:
    ``Chaos and Optimization - From Numerical Algorithm to Hardware Implementation-,''
    Proceedings of 1997 International Symposium on Nonlinear Theory and Its Applications, % Honolulu, Hawaii, U.S.A., November 29 - December 2, Vol.1, pp.605-608, December 1997.

  33. M. Hasegawa, T. Ikeguchi and K. Aihara:
    ``A Novel Chaotic Search for Combinatorial Optimization,''
    Proceedings of 1997 International Symposium on Nonlinear Theory and Its Applications, % Honolulu, Hawaii, U.S.A., November 29-December 2, Vol.1, pp.613-617, December 1997.

  34. T. Ikeguchi, M. Takakuwa and K. Aihara:
    ``Reconstructing Attractors with Higher Order Correlation,''
    Proceedings of 1997 International Symposium on Nonlinear Theory and Its Applications, % Honolulu, Hawaii, U.S.A., November 29-December 2, Vol.2, pp.1149-1152, December 1997.

  35. M. Yasukawa, T. Ikeguchi and M. Takagi:
    ``Radial Basis Predictor for Image Interpolation,''
    Proceedings of 1997 International Symposium on Nonlinear Theory and Its Applications, % Honolulu, Hawaii, U.S.A., November 29- December 2, Vol.2, pp.903-906, December 1997.

  36. T. Ikeguchi, C. Kitawaki and K. Aihara:
    ``Nonlinear Analysis on Pulsation of Human Capillary Vessels,''
    Proceedings of 1997 International Symposium on Nonlinear Theory and Its Applications, % Honolulu, Hawaii, U.S.A., November 29 - December 2, Vol.2, pp.1169-1172, December 1997.

  37. T. Ikeguchi and K. Aihara:
    ``Local and Global Modeling for Complex Time Series,''
    Proceedings of the Third International Symposium on Artificial Life and Robotics (AROB 3rd '98), % Beppu, B-Con Plaza, January 19-21, Vol.1, pp.342-345 (January 1998).

  38. M. Yasukawa, T. Ikeguchi and M. Takagi:
    ``Enlargement of Digital Images with Edge Information Prediction by Radial Basis Interpolation,''
    Proceedings of 1998 International Symposium on Nonlinear Theory and Its Applications, % Le R\'egent, Crans-Montana, Switzerland, September 14-17, Vol.1, pp.283-286, September 1998.

  39. T. Ikeguchi and K. Aihara:
    ``Stationary versus Nonstationary Modeling for Nonlinear Time Series,''
    Proceedings of 1998 International Symposium on Nonlinear Theory and Its Applications, % Le R\'egent, Crans-Montana, Switzerland, September 14-17, Vol.2, pp.571 - 574, September 1998.

  40. M. Hasegawa, T. Ikeguchi and K. Aihara:
    ``A Novel Approach for Solving Large Scale Traveling Salesman Problems by Chaotic Neural Networks,''
    Proceedings of 1998 International Symposium on Nonlinear Theory and Its Applications, % Le R\'egent, Crans-Montana, Switzerland, September 14-17, Vol.2, pp.711-714, September 1998.

  41. M. Hasegawa, T. Ikeguchi and K. Aihara:
    ``Harnessing of Chaotic Dynamics for Solving Combinatorial Optimization Problems,''
    Proceedings of the Fifth International Conference on Neural Information Processing Jointly with the 1998 Annual Conference of the Japanese Neural Network Society, % Kitakyushu, Japan, October 21-23, Vol.2, pp.749-753, October 1998.

  42. T. Ikeguchi:
    ``Detecting Nonlinear Causality via Nonlinear Modeling,''
    Proceedings of the Fourth International Symposium on Artificial Life and Robotics (AROB 4th '99), % Beppu, B-Con Plaza, January 19-22, Vol.1, pp.94-97, January 1999.

  43. M. Hasegawa, T. Ikeguchi and K. Aihara:
    ``A Novel Approach for Combinatorial Optimization Problems using Chaotic Neurodynamics,''
    Proceedings of 1999 International Symposium on Circuits and Systems, % Orlando, Florida, May 30-June 2, Vol.6, pp.322-325, June 1999.

  44. T. Ikeguchi, M. Hasegawa, and K. Aihara:
    ``An Analysis of Associative Dynamics in Chaotic Neural Networks by Global and Local Liapunov Exponents,'' Proceedings of International Conference on Neural Information Processing, % Perth, Western Australia, Vol.3, pp.1017-1022, 1999.

  45. Y. Yorikane, A. Akabane, T. Harada and T. Ikeguchi:
    ``A Novel Presentation Method of Displaying Strange Attractors of Chaotic Dynamical Systems by Force Feedback,''
    Proceedings of 1999 Intenational Symposium on Nonlinear Theory and its Applications, % Hilton Waikoloa Village, Hawaii, U.S.A., Nov.28 - Dec.2, 1999, Vol.1, pp.279-282, 1999.

  46. T. Ikeguchi:
    ``Embedding Theory for Input-Output Systems and its Application to Detecting Nonlinear Causality,''
    Proceedings of 1999 Intenational Symposium on Nonlinear Theory and its Applications, % Hilton Waikoloa Village, Hawaii, U.S.A., Nov.28 - Dec.2, 1999, Vol.2, pp.487-490, 1999.

  47. T. Ikeguchi:
    ``On measuring distances between strange attractors,''
    Proceedings of the Fifth International Symposium on Artificial Life and Robotics (AROB 5th '00), % Compal Hall, Oita, Japan, January 26-28, 2000, Vol.1, pp.181-184, January 2000.

  48. M. Hasegawa and T. Ikeguchi:
    ``Global Chaotic Search for Combinatorial Optimization Problems,'' Proceedings of The Fourth Asian Fuzzy Systems Symposium, % Tsukuba, Japan, Vol.2, pp.923-928, 2000.

  49. T. Ikeguchi and K. Aihara:
    ``Local and Global Liapunov Exponents of Chaotic Neural Networks,'' Proceedings of The Fourth Asian Fuzzy Systems Symposium, % Tsukuba, Japan, Vol.2, pp.933-938, 2000.

  50. T. Ikeguchi, M. Hasegawa and K. Aihara:
    ``Local Liapunov Spectral Analysis on Chaotic Neural Networks,'' Proceeding of 2000 International Symposium on Nonlinear Theory and its Applications, Vol.2, pp.595-598, September 2000.

  51. Y. Yorikane, A. Akabane, T. Harada and T. Ikeguchi:
    ``A Novel Presentation Method of Displaying Strange Attractors by Visual, Audio and Force Feedback,'' Proceeding of International Symposium on Nonlinear Theory and its Applications, Vol.2, pp.787-790, September 2000.

  52. T. Ikeguchi and Y. Kanno: ``Nonlinear Analysis on Complex Time Series with Amplitude and Event Information,'' Proceedings of the 2001 International Technical Conference on Circuit/Systems, Computers and Communications, % Hotel Clemont Tokushima, Tokushima, Japan, July 10-12, 2001, Vol.2, pp.1192-1195, July 2001.

  53. Y. Kanno and T. Ikeguchi: ``Prediction on Nonlinear Time Series of Amplitude and Event Information,'' Proceedings of 2001 International Symposium on Nonlinear Theory and its Applications, % Zao, Miyagi, Japan, Oct. 28- Nov.1, 2001, Vol.1, pp.275-278, October 2001.

  54. T. Suzuki, T. Ikeguchi and M. Suzuki: ``Nonlinear Analysis on Interspike Interval Time Series from Foreign Exchange Rates,'' Proceedings of 2001 International Symposium on Nonlinear Theory and its Applications, % Zao, Miyagi, Japan, Oct. 28- Nov.1, 2001, Vol.1, pp.287-290, October 2001.

  55. R. Hosaka, Y. Sakai, T. Ikeguchi and S. Yoshizawa: ``Statistical Analysis on BVP Equations Stimulated by White, Colored and Chaotic Noise,'' Proceedings of the Seventh International Symposium on Artificial Life and Robotics (AROB 7th '02), Vol.1, pp.112-115, January 2002.

  56. Y. Uwate, Y. Nishio, T. Ueta, T. Kawabe and T. Ikeguchi:
    ``Solving Ability of Hopfield Neural Network with Chaotic Noise and Bursting Noise for Quaratic Assignment Problems,'' Proceedings of 2002 IEEE International Symposium on Circuits and Systems, Vol.3, pp.III-465-III-468, May 2002.

  57. T. Ikeguchi, K. Sato, M. Hasegawa and K. Aihara:
    ``Chaotic Optimization for Quaratic Assignment Problems,'' Proceedings of 2002 IEEE International Symposium on Circuits and Systems, Vol.3, pp.III-469-III-472, May 2002.

  58. M. Hasegawa and T. Ikeguchi:
    ``An Analysis of the Internet Traffic by the Method of Surrogate Data,'' Proceedings of 2002 IEEE International Symposium on Circuits and Systems, Vol.3, pp.III-599-III-602, May 2002.

  59. T. Ikeguchi and M. Hasegawa:
    ``Surrogate Analysis on the Internet Traffic Time Series,'' Proceeding of 2002 International Symposium on Nonlinear Theory and its Applications, pp.25-28 (SN2-1-3), October 2002.

  60. Y. Kanno, T. Ikeguchi and A. Uchida:
    ``Application of Nonlinear Modeling Methods for Event Sizes and Event Timings,'' Proceeding of 2002 International Symposium on Nonlinear Theory and its Applications, pp.243-246 (N2-2-6), October 2002.

  61. Y. Uwate, Y. Nishio, T. Ueta, T. Kawabe and T. Ikeguchi:
    ``Performance of Chaos Noise Injected to Hopfield NN for Quadratic Assignment Problems,''
    Proceeding of 2002 International Symposium on Nonlinear Theory and its Applications, pp.267-270 (N2-2-4), October 2002.

  62. A. Tetsunoshin and T. Ikeguchi:
    ``Iso-Directional Neighbors Plot Implies High Dimensionarity of the Stock Market Price Index,''
    Proceeding of Joint 1st International Conference on Soft Computing and Intelligent Systems (International Session of 18th SOFT Fuzzy Systems Symposium) and 3rd International Symposium on Advanced Intelligent Systems, The Auditorium of AIST, Tsukuba, Japan, Oct.21-25, 2002, 24C-2, October 2002.

  63. T. Suzuki, T. Ikeguchi and M. Suzuki:
    ``Multivariable Modeling of Complex Behavior of Foreign Exchange Market,''
    to appear in Proceedings of the Second Nikkei Econophysics Research Workshop and Symposium, November 2002.

  64. Y. Kanno and T. Ikeguchi:
    ``Nonlinear Prediction on Maximum Timing of Complex Time Series,'' Proceeding of 9th International Conference on Neural Information Processing(ICONIP '02), November 2002.

  65. E. Mardhana and T. Ikeguchi:
    ``NEUROSEARCH: A Program Library for Neural Network Driven Search Meta-heuristics,''
    Proceedings of The IEEE 2003 International Symposium on Circuit and Systems (ISCAS2003), Vol.V, pp.697-700, May 2003.

  66. Takuji Hayashi, Osamu Araki, and Tohru Ikeguchi:
    ``Different inhibitory effects by dopaminergic modulation and global suppression of activity,''
    International Joint Conference on Neural Networks Conference Proceedings, Vol.4, pp.2563 - 2568, July 2003.
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  67. Kimitaka Kaneki, Osamu Araki and Tohru Ikeguchi:
    ``Function of synaptic plasticity decided by the neural network dynamics,'' Proceedings of International Symposium on Nonlinear Circuits and Signal Processing, March 2004.

  68. Tomoya Suzuki, Tohru Ikeguchi and Masuo Suzuki:
    ``A Measure for Nonlinear Predictability and Information Criteria,'' Proceedings of International Symposium on Nonlinear Circuits and Signal Processing, March 2004.

  69. Ewin Mardhana, Tohru Ikeguchi, Yoshihiko Horio, Mikiho Hasegawa and Natsuhiro Ichinose:
    ``An integral tabu search for finding DNA motifs,'' Proceedings of International Symposium on Nonlinear Circuits and Signal Processing, March 2004.

  70. Takafumi Matsuura, Tetsunoshin Anzai, Tohru Ikeguchi, Yoshihiko Horio, Mikiho Hasegawa and Natsuhiro Ichinose:
    ``A Tabu Search for Extracting Motifs from DNA Sequences,'' Proceedings of International Symposium on Nonlinear Circuits and Signal Processing, March 2004.

  71. Ryosuke Hosaka, Yutaka Sakai, Tohru Ikeguchi and Shuuji Yoshizawa:
    ``Difference of higher order statistics of Inter-Spike Intervals between LIF model and BVP model,'' Proceedings of International Symposium on Nonlinear Circuits and Signal Processing, March 2004.

  72. Kento Hosoda, Ryosuke Hosaka and Tohru Ikeguchi:
    ``Bifurcation Structures of a sigmoidal resource budget model for masting behavior of individual plants,'' Proceedings of International Symposium on Nonlinear Circuits and Signal Processing, March 2004.

  73. Kento Hosoda, Ryosuke Hosaka and Tohru Ikeguchi:
    ``A sigmoidal resource budget model for masting behavior of individual plants,'' Proceeding of International Symposium on Dynamical Systems Theory and Its Applications to Biology and Enviromental Sciences, March 2003.

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