Learning from Entailment of Logic Programs with Local Variables

  • Authors:
  • M. R. K. Krishna Rao;Abdul Sattar

  • Affiliations:
  • -;-

  • Venue:
  • ALT '98 Proceedings of the 9th International Conference on Algorithmic Learning Theory
  • Year:
  • 1998

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Abstract

In this paper, we study exact learning of logic programs from entailment and present a polynomial time algorithm to learn a rich class of logic programs that allow local variables and include many standard programs like append, merge, split, delete, member, prefix, suffix, length, reverse, append/4 on lists, tree traversal programs on binary trees and addition, multiplication, exponentiation on natural numbers. Grafting a few aspects of incremental learning [9] onto the framework of learning from entailment [3], we generalize the existing results to allow local variables, which play an important role of sideways information passing in the paradigm of logic programming.