Two-level hierarchy with sparsely and temporally coded patterns and its possible functional role in information processing

  • Authors:
  • Masaki Nomura;Toshio Aoyagi;Masato Okada

  • Affiliations:
  • Department of Applied Analysis and Complex Dynamical Systems, Graduate School of Informatics, Kyoto University, Kyoto 606-8501, Japan and CREST, Japan Science and Technology Corporation, Kawaguchi ...;Department of Applied Analysis and Complex Dynamical Systems, Graduate School of Informatics, Kyoto University, Kyoto 606-8501, Japan and CREST, Japan Science and Technology Corporation, Kawaguchi ...;Kawato Dynamic Brain Project, Japan Science and Technology Corporation, 2-2, Hikaridai, Seika-cho, Soraku-gun, Kyoto 619-0288, Japan and Laboratory for Mathematical Neuroscience, RIKEN Brain Scien ...

  • Venue:
  • Neural Networks
  • Year:
  • 2003

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Abstract

In recent years it has been shown that first order recurrent neural networks trained by gradient-descent can learn not only regular but also simple context-free and context-sensitive languages. However, the success rate was generally low and severe instability ...