An efficient query learning algorithm for ordered binary decision diagrams

  • Authors:
  • Atsuyoshi Nakamura

  • Affiliations:
  • Division of Computer Science, Graduate School of Information Science and Technology, Hokkaido University, Sapporo 060-0814, Japan

  • Venue:
  • Information and Computation
  • Year:
  • 2005

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Abstract

In this paper, we propose a new algorithm that exactly learns ordered binary decision diagrams (OBDDs) with a given variable ordering via equivalence and membership queries. Our algorithm uses at most n equivalence queries and at most 2n(@?log"2m@?+3n) membership queries, where n is the number of nodes in the target-reduced OBDD and m is the number of variables. The upper bound on the number of membership queries is smaller by a factor of O(m) compared with that for the previous best known algorithm proposed by [R. Gavalda, D. Guijarro, Learning Ordered Binary Decision Diagrams, Proceedings of the 6th International Workshop on Algorithmic Learning Theory, 1995, pp. 228-238].