Toshikuni NAGAHARA


Application of an Improved Genetic Algorithm to the Learning of Neural Networks
Yasumasa IKUNO Hiroaki HAWABATA Yoshiaki SHIRAO Masaya HIRATA Toshikuni NAGAHARA Yashio INAGAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/04/25
Vol. E77-A  No. 4  pp. 731-735
Type of Manuscript:  LETTER
Category: Neural Networks
Keyword: 
neural networkgenetic algorithmback propagation
 Summary | Full Text:PDF(285.5KB)

Quasi-Periodicity Route to Chaos in Josephson Transmission Line
Toshihide TSUBATA Hiroaki KAWABATA Yoshiaki SHIRAO Masaya HIRATA Toshikuni NAGAHARA Yoshio INAGAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1993/09/25
Vol. E76-A  No. 9  pp. 1548-1554
Type of Manuscript:  LETTER
Category: Nonlinear Phenomena and Analysis
Keyword: 
quasi-periodic break down routechaoshyper chaossolitonkinkJosephson transmission line
 Summary | Full Text:PDF(301KB)

Controlling Chaos in the Maxwell-Bloch Equations with Time Delay
Keiji KONISHI Yoshiaki SHIRAO Hiroaki KAWABATA Toshikuni NAGAHARA Yoshio INAGAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1993/07/25
Vol. E76-A  No. 7  pp. 1121-1125
Type of Manuscript:  Special Section LETTER (Special Section of Letters Selected from the 1993 IEICE Spring Conference)
Category: 
Keyword: 
controlling chaosthe OGY control algorithmthe OPF control algorithm the Maxwell-Bloch equationstime delaychaotic attractor
 Summary | Full Text:PDF(323KB)

Intermittency of Recurrent Neuron and Its Network Dynamics
Toshihide TSUBATA Hiroaki KAWABATA Yoshiaki SHIRAO Masaya HIRATA Toshikuni NAGAHARA Yoshio INAGAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1993/05/25
Vol. E76-A  No. 5  pp. 695-703
Type of Manuscript:  Special Section PAPER (Special Section on Neural Nets,Chaos and Numerics)
Category: Chaos and Related Topics
Keyword: 
recurrent neuronintermittencychaosLyapunov exponentthe rate of expansion and contraction
 Summary | Full Text:PDF(815.3KB)

Chaotic Phenomena in the Maxwell-Bloch Equation with Time Delay
Keiji KONISHI Yoshiaki SHIRAO Hiroaki KAWABATA Masaya HIRATA Toshikuni NAGAHARA Yoshio INAGAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1992/12/25
Vol. E75-A  No. 12  pp. 1747-1750
Type of Manuscript:  Special Section LETTER (Special Section on the 1992 IEICE Fall Conference)
Category: 
Keyword: 
Maxwell-Bloch equationtime delayLyapunov exponentLyapunov dimensionchaotic attractor
 Summary | Full Text:PDF(238.2KB)

The Dynamics of Recurrent Neuron
Toshihide TSUBATA Hiroaki KAWABATA Yoshiaki SHIRAO Masaya HIRATA Toshikuni NAGAHARA Yoshio INAGAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1992/07/25
Vol. E75-A  No. 7  pp. 923-927
Type of Manuscript:  Special Section LETTER (Special Section on the 1992 IEICE Spring Conference)
Category: 
Keyword: 
recurrent neuronchaosLyapunov exponent
 Summary | Full Text:PDF(300.1KB)