Including hints in training neural nets

  • Authors:
  • Khalid A. Al-Mashouq;Irving S. Reed

  • Affiliations:
  • Department of Electrical Engineering, University of Southern California, Los Angeles, CA 90007 USA;Department of Electrical Engineering, University of Southern California, Los Angeles, CA 90007 USA

  • Venue:
  • Neural Computation
  • Year:
  • 1991

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Abstract

The aim of a neural net is to partition the data space into near optimal decision regions. Learning such a partitioning solely from examples has proven to be a very hard problem (Blum and Rivest 1988; Judd 1988). To remedy this, we use the idea of supplying hints to the network as discussed by Abu-Mostafa (1990). Hints reduce the solution space, and as a consequence speed up the learning process. The minimum Hamming distance between the patterns serves as the hint. Next, it is shown how to learn such a hint and how to incorporate it into the learning algorithm. Modifications in the net structure and its operation are suggested, which allow for a better generalization. The sensitivity to errors in such a hint is studied through some simulations.