Multicategory bayesian decision using a three-layer neural network

  • Authors:
  • Yoshifusa Ito;Cidambi Srinivasan

  • Affiliations:
  • Department of Information and Policy Studies, Aichi-Gakuin University, Nisshin-shi, Aichi-ken, Japan;Department of Statistics, University of Kentucky, Lexington, Kentucky

  • Venue:
  • ICANN/ICONIP'03 Proceedings of the 2003 joint international conference on Artificial neural networks and neural information processing
  • Year:
  • 2003

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Abstract

We realize a multicategory Bayesian classifier by a three-layer neural network having rather a small number of hidden layer units. The state-conditional probability distributions are supposed to be multivariate normal distributions. The network has direct connections between the input and output layers. Its outputs are monotone mappings of posterior probabilities. Hence, they can be used as discriminant functions and, in addition, the posterior probabilities can be easily retrieved from the outputs.