CLP(BN): constraint logic programming for probabilistic knowledge

  • Authors:
  • Vítor Santos Costa;David Page;James Cussens

  • Affiliations:
  • DCC, FCUP and LIACC, Universidade do Porto, Portugal;Dept. of Biostatistics and Medical Informatics, University of Wisconsin-Madison;Department of Computer Science, University of York, UK

  • Venue:
  • Probabilistic inductive logic programming
  • Year:
  • 2008

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Abstract

In Datalog, missing values are represented by Skolem constants. More generally, in logic programming missing values, or existentially quantified variables, are represented by terms built from Skolem functors. The CLP(BN) language represents the joint probability distribution over missing values in a database or logic program by using constraints to represent Skolem functions. Algorithms from inductive logic programming (ILP) can be used with only minor modification to learn CLP(BN) programs. An implementation of CLP(BN) is publicly available as part of YAP Prolog at http://www.ncc.up.pt/~vsc/Yap.