DocumentCode
1242392
Title
A neural computation model with short-term memory
Author
Tom, M. Daniel ; Tenorio, Manoel Femando
Author_Institution
Parallel Distributed Structure Lab., Purdue Univ., West Lafayette, IN, USA
Volume
6
Issue
2
fYear
1995
fDate
3/1/1995 12:00:00 AM
Firstpage
387
Lastpage
397
Abstract
A study of the memory characteristics of the brain and the computer prompts the creation of a new neuron architecture for neural computation. We hypothesize that neural responses resemble hysteresis loops. The upper and lower halves of the hysteresis loop are described by two sigmoids. Generalizing the two sigmoids to two families of curves accommodates loops of various sizes. This model, which we call the `hystery model´, is capable of memorizing the entire history of its bipolar inputs in an adaptive fashion, with larger memory for longer sequences. We theorize and prove that the hystery model´s response converges asymptotically to hysteresis-like loops. A simple application to temporal pattern discrimination demonstrates the nonlinear short-term memory characteristics of the hystery model. This model may have important applications for time-based computations such as control, signal processing and spatiotemporal pattern recognition, especially if it can take advantage of existing hysteresis phenomena in semiconductor materials
Keywords
brain models; content-addressable storage; hysteresis; neural nets; adaptive memorization; asymptotic convergence; bipolar input history; brain; control; hysteresis loops; hystery model; neural computation model; neural responses; neuron architecture; nonlinear short-term memory characteristics; semiconductor materials; sigmoids; signal processing; spatiotemporal pattern recognition; temporal pattern discrimination; time-based computations; Computational modeling; Computer applications; Computer architecture; History; Hysteresis; Neurons; Pattern recognition; Process control; Signal processing; Spatiotemporal phenomena;
fLanguage
English
Journal_Title
Neural Networks, IEEE Transactions on
Publisher
ieee
ISSN
1045-9227
Type
jour
DOI
10.1109/72.363474
Filename
363474
Link To Document