Forced Formation of a Geometrical Feature Space by a Neural Network Model with Supervised Learning

Toshiaki TAKEDA  Hiroki MIZOE  Koichiro KISHI  Takahide MATSUOKA  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E76-A    No.7    pp.1129-1132
Publication Date: 1993/07/25
Online ISSN: 
Print ISSN: 0916-8508
Type of Manuscript: Special Section LETTER (Special Section of Letters Selected from the 1993 IEICE Spring Conference)
feature space,  geometrical pattern,  neural network,  supervised learning,  rotation invariant recognition,  

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To investigate necessary conditions for the object recognition by simulations using neural network models is one of ways to acquire suggestions for understanding the neuronal representation of objects in the brain. In the present study, we trained a three layered neural network to form a geometrical feature representation in its output layer using back-propagation algorithm. After training using 73 learning examples, 65 testing patterns made by various combinations of above features could be recognized with the network at a rate of 95.3% appropriate response. We could classify four types of hidden layer units on the basis of effects on the output layer.