The complexity of learning SUBSEQ (A)

  • Authors:
  • Stephen Fenner;William Gasarch

  • Affiliations:
  • Dept. of Computer Science and Engineering, University of South Carolina, SC, Columbia;Dept. of Computer Science and UMIACS, University of Maryland at College Park, College Park, MD

  • Venue:
  • ALT'06 Proceedings of the 17th international conference on Algorithmic Learning Theory
  • Year:
  • 2006

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Abstract

Higman showed that if A is any language then SUBSEQ(A) is regular, where SUBSEQ(A) is the language of all subsequences of strings in A. We consider the following inductive inference problem: given A(ε), A(0), A(1), A(00), ... learn, in the limit, a DFA for SUBSEQ(A). We consider this model of learning and the variants of it that are usually studied in inductive inference: anomalies, mindchanges, and teams.