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TCHR: a framework for tabled CLP

Published online by Cambridge University Press:  26 February 2008

TOM SCHRIJVERS ,
BART DEMOEN  and
DAVID S. WARREN
TOM SCHRIJVERS
Affiliation:
Dept. of Computer Science, K.U.Leuven, Belgium (e-mail: toms@cs.kuleuven.ac.be, bmd@cs.kuleuven.ac.be)
BART DEMOEN
Affiliation:
Dept. of Computer Science, K.U.Leuven, Belgium (e-mail: toms@cs.kuleuven.ac.be, bmd@cs.kuleuven.ac.be)
DAVID S. WARREN
Affiliation:
Dept. of Computer Science, State University of New York at Stony Brook, USA (e-mail: warren@cs.sunysb.edu)
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Abstract

Tabled Constraint Logic Programming is a powerful execution mechanism for dealing with Constraint Logic Programming without worrying about fixpoint computation. Various applications, e.g. in the fields of program analysis and model checking, have been proposed. Unfortunately, a high-level system for developing new applications is lacking, and programmers are forced to resort to complicated ad hoc solutions.

This papers presents TCHR, a high-level framework for tabled Constraint Logic Programming. It integrates in a light-weight manner Constraint Handling Rules (CHR), a high-level language for constraint solvers, with tabled Logic Programming. The framework is easily instantiated with new application-specific constraint domains. Various high-level operations can be instantiated to control performance. In particular, we propose a novel, generalized technique for compacting answer sets.

Keywords

Constraint logic programmingConstraint handling rulesTabled execution

Information

Type
Regular Papers
Information
Theory and Practice of Logic Programming , Volume 8 , Issue 4 , July 2008 , pp. 491 - 526
Copyright
Copyright © Cambridge University Press 2008

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