title: Application of neural network to humanoid robots-development of co-associative memory model.
abstract: We have been studying a system of many harmonic oscillators (neurons) interacting via a chaotic force since 2002. Each harmonic oscillator is driven by chaotic force whose bifurcation parameter is modulated by the position of the harmonic oscillator. Moreover, a system of mutually coupled chaotic neural networks was investigated. Different patterns were stored in each network and the associative memory problem was discussed in these networks. Each network can retrieve the pattern stored in the other network. On the other hand, we have been developing new mechanisms and functions for a humanoid robot with the ability to express emotions and communicate with humans in a human-like manner. We introduced a mental model which consisted of the mental space, the mood, the equations of emotion, the robot personality, the need model, the consciousness model and the behavior model. This type of mental model was implemented in Emotion Expression Humanoid Robot WE-4RII (Waseda Eye No.4 Refined II). In this paper, an associative memory model using mutually coupled chaotic neural networks is proposed for retrieving optimum memory (recognition) in response to a stimulus. We implemented this model in Emotion Expression Humanoid Robot WE-4RII (Waseda Eye No.4 Refined II).
authors.affiliation: Department of Mechanical Engineering, Waseda University, #59-308, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan. itoh@suou.waseda.jp
authors.forename: Kazuko
authors.initials: K
authors.lastname: Itoh
authors.forename: Hiroyasu
authors.initials: H
authors.lastname: Miwa
authors.forename: Hideaki
authors.initials: H
authors.lastname: Takanobu
authors.forename: Atsuo
authors.initials: A
authors.lastname: Takanishi
mesh_terms: D000339:Affect; D000465:Algorithms; D001066:Appetite; D001185:Artificial Intelligence; D001245:Association Learning / Q000502:physiology*; D003201:Computers; D004644:Emotions; D006801:Humans; D008568:Memory / Q000502:physiology*; D008959:Models, Neurological; D016571:Neural Networks, Computer; D017711:Nonlinear Dynamics; D012371:Robotics