Genetic tolerance fuzzy neural networks: From data to fuzzy hyperboxes

  • Authors:
  • Witold Pedrycz

  • Affiliations:
  • Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada T6G 2G7 and Systems Research Institute, Polish Academy of Sciences, 01-447 Warsaw, Poland

  • Venue:
  • Neurocomputing
  • Year:
  • 2007

Quantified Score

Hi-index 0.01

Visualization

Abstract

In this study, we introduce and discuss a category of genetically optimized fuzzy neural networks. As far as the underlying geometry of such networks is concerned, they are focused on revealing a hyperbox-based topology in numeric data. This class of the networks is developed around fuzzy tolerance neurons. Tolerance neurons form a generalized version of intervals (sets) arising in a form of fuzzy intervals. The architecture of the network reflects a hierarchy of geometric concepts typically exploited in data analysis: fuzzy intervals combined and-wise give rise to fuzzy hyperboxes and these in turn by being aggregated or-wise generate a summary of data as a collection of hyperboxes. We discuss a genetic form of optimization of the networks and provide an in-depth view into the geometry of the individual hyperboxes as well as the overall topology of the network. Numerical experiments deal with 2-D synthetic data.