Lee-Associator—a chaotic auto-associative network for progressive memory recalling

• Published in: Neural networks Vol. 19; no. 5; pp. 644 - 666
• Main Author: Lee, Raymond S.T.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.06.2006; Elsevier Science
• Subjects: Applied sciences; Artificial Intelligence; Associative dynamics; Chaotic neural associator; Chaotic neural oscillators; Computer science; control theory; systems; Connectionism. Neural networks; Exact sciences and technology; Humans; Memory - physiology; Models, Neurological; Neural Networks (Computer); Neurons - physiology; Nonlinear Dynamics; Oscillometry; Rubin-vase experiment; Time Factors; Rubin-vase experiment; Chaotic neural associator; Chaotic neural oscillators; Associative dynamics; Associative memory; Chaotic oscillation; Recall; Neural network
• ISSN: 0893-6080; 1879-2782
• DOI: 10.1016/j.neunet.2005.08.017

In the past few decades, neural networks have been extensively adopted in various applications ranging from simple synaptic memory coding to sophisticated pattern recognition problems such as scene analysis and robot vision. Moreover, current studies on neuroscience and physiology have reported that in a typical scene segmentation problem our major senses of perception (e.g. vision, olfaction, etc.) are highly chaotic and involved non-linear neural dynamics and oscillations. In this paper, the author proposes an innovative chaotic neural oscillator—namely the Lee-oscillator (Lee's Chaotic Neural Oscillator) to provide a chaotic neural coding and information processing scheme. To illustrate the capability of Lee-oscillators upon pattern association, a chaotic auto-associative network, namely Lee-Associator (Lee's Chaotic Auto-associator) is constructed. Different from classical auto-associators such as the celebrated Hopfield network, which provides time-independent and static pattern association scheme, the Lee-Associator provides a remarkable progressive memory association scheme (what the author called ‘Progressive Memory Recalling Scheme, PMRS’) during the chaotic memory association. This is exactly consistent with the latest research in psychiatry and perception psychology on dynamic memory recalling schemes, as well as the implications and analogues to human perception as illustrated by the remarkable Rubin-vase experiment on visual psychology.