title: Categorization in unsupervised neural networks: the Eidos model.
abstract: Proulx and Begin (1995) recently explained the power of a learning rule that combines Hebbian and anti-Hebbian learning in unsupervised auto-associative neural networks. Combined with the brain-state-in-a-box transmission rule, this learning rule defines a new model of categorization: the Eidos model. To test this model, a simulated neural network, composed of 35 interconnected units, is subjected to an alphabetical characters recognition task. The results indicate the necessity of adding two parameters to the model: a restraining parameter and a forgetting parameter. The study shows the outstanding capacity of the model to categorize highly altered stimuli after a suitable learning process. Thus, the Eidos model seems to be an interesting option to achieve categorization in unsupervised neural networks.
authors.affiliation: Dept. de Psychol., Quebec Univ., Montreal, Que.
authors.forename: J
authors.initials: J
authors.lastname: Begin
authors.forename: R
authors.initials: R
authors.lastname: Proulx