Polynomial time inference of extended regular pattern languages

  • Takeshi Shinohara
Conference paper

DOI: 10.1007/3-540-11980-9_19

Volume 147 of the book series Lecture Notes in Computer Science (LNCS)
Cite this paper as:
Shinohara T. (1983) Polynomial time inference of extended regular pattern languages. In: Goto E., Furukawa K., Nakajima R., Nakata I., Yonezawa A. (eds) RIMS Symposia on Software Science and Engineering. Lecture Notes in Computer Science, vol 147. Springer, Berlin, Heidelberg

Abstract

A pattern is a string of constant symbols and variable symbols. The language of a pattern p is the set of all strings obtained by substituting any non-empty constant string for each variable symbol in p. A regular pattern has at most one occurrence of each variable symbol. In this paper, we consider polynomial time inference from positive data for the class of extended regular pattern languages which are sets of all strings obtained by substituting any (possibly empty) constant string, instead of non-empty string. Our inference machine uses MINL calculation which finds a minimal language containing a given finite set of strings. The relation between MINL calculation for the class of extended regular pattern languages and the longest common subsequence problem is also discussed.

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Copyright information

© Springer-Verlag 1983

Authors and Affiliations

  • Takeshi Shinohara
    • 1
  1. 1.Computer CenterKyushu University 91FukuokaJapan