On-line identification and reconstruction of finite automata with generalized recurrent neural networks

  • Authors:
  • Ivan Gabrijel;Andrej Dobnikar

  • Affiliations:
  • Faculty of Computer and Information Science, University of Ljubljana, Trzaska c. 25, SI-1001 Ljubljana, Slovenia;Faculty of Computer and Information Science, University of Ljubljana, Trzaska c. 25, SI-1001 Ljubljana, Slovenia

  • Venue:
  • Neural Networks
  • Year:
  • 2003

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Abstract

In this paper finite automata are treated as general discrete dynamical systems from the viewpoint of systems theory. The unconditional on-line identification of an unknown finite automaton is the problem considered. A generalized architecture of recurrent neural networks with a corresponding on-line learning scheme is proposed as a solution to the problem. An on-line rule-extraction algorithm is further introduced. The architecture presented, the on-line learning scheme and the on-line rule-extraction method are tested on different, strongly connected automata, ranging from a very simple example with two states only to a more interesting and complex one with 64 states; the results of both training and extraction processes are very promising.