Improved Representation-burden Conservation Network for LearningNon-stationary VQ

  • Authors:
  • Jung-Hua Wang;Wei-Der Sun

  • Affiliations:
  • Department of Electrical Engineering, National Taiwan Ocean University, 2 Peining Rd. Keelung, Taiwan E-mail: jhwang@celab1.ee.ntou.edu.tw;Department of Electrical Engineering, National Taiwan Ocean University, 2 Peining Rd. Keelung, Taiwan E-mail: jhwang@celab1.ee.ntou.edu.tw

  • Venue:
  • Neural Processing Letters
  • Year:
  • 1998

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Abstract

In a recent publication [1], it was shown that abiologically plausible RCN (Representation-burdenConservation Network) in which conservation isachieved by bounding the summed representation-burdenof all neurons at constant 1, is effective in learningstationary vector quantization. Based on theconservation principle, a new approach for designinga dynamic RCN for processing both stationary andnon-stationary inputs is introduced in thispaper. We show that, in response to the inputstatistics changes, dynamic RCN improves itsoriginal counterpart in incremental learningcapability as well as in self-organizing the networkstructure. Performance comparisons between dynamic RCN and other self-development models arealso presented. Simulation results show that dynamic RCN is very effective in training anear-optimal vector quantizer in that it manages tokeep a balance between the equiprobable andequidistortion criterion.