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Concurrent goal-based execution of Constraint Handling Rules

Published online by Cambridge University Press:  29 July 2010

EDMUND S. L. LAM  and
MARTIN SULZMANN
EDMUND S. L. LAM
Affiliation:
School of Computing, National University of Singapore, S16 Level 5, 3 Science Drive 2, Singapore 117543 (e-mail: lamsoonl@comp.nus.edu.sg)
MARTIN SULZMANN
Affiliation:
Informatik Consulting Systems AG, Sonnenbergstr. 13, 70184 Stuttgart, Germany (e-mail: martin.sulzmann@gmail.com)
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Abstract

We introduce a systematic, concurrent execution scheme for Constraint Handling Rules (CHR) based on a previously proposed sequential goal-based CHR semantics. We establish strong correspondence results to the abstract CHR semantics, thus guaranteeing that any answer in the concurrent, goal-based CHR semantics is reproducible in the abstract CHR semantics. Our work provides the foundation to obtain efficient, parallel CHR execution schemes.

Keywords

multiset rewritingconstraintsconcurrency
Type
Regular Papers
Information
Theory and Practice of Logic Programming , Volume 11 , Issue 6 , November 2011 , pp. 841 - 879
Copyright
Copyright © Cambridge University Press 2010

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