Computation of distances for regular and context-free probabilistic languages

  • Authors:
  • Mark-Jan Nederhof;Giorgio Satta

  • Affiliations:
  • School of Computer Science, University of St Andrews, North Haugh, St Andrews, KY16 9SX, Scotland, United Kingdom;Department of Information Engineering, University of Padua, via Gradenigo, 6/A, I-35131 Padova, Italy

  • Venue:
  • Theoretical Computer Science
  • Year:
  • 2008

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Abstract

Several mathematical distances between probabilistic languages have been investigated in the literature, motivated by applications in language modeling, computational biology, syntactic pattern matching and machine learning. In most cases, only pairs of probabilistic regular languages were considered. In this paper we extend the previous results to pairs of languages generated by a probabilistic context-free grammar and a probabilistic finite automaton.