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ECAI
2006
Springer

Enhancing Constraints Manipulation in Semiring-Based Formalisms

14 years 2 months ago
Enhancing Constraints Manipulation in Semiring-Based Formalisms
Abstract. Many "semiring-like" structures are used in Soft Constraint Satisfaction Problems (SCSPs). We review a few properties of semirings that are useful for dealing with soft constraints, highlighting the differences between alternative proposals in the literature. We then extend the semiring structure by adding the notion of division as a weak inverse operation of product. In particular, division is needed to apply constraint relaxation when the product operation of the semiring is not idempotent. The division operator is introduced via residuation and it is also able to deal with partial orders, generalizing the approach given for Valued CSPs.
Stefano Bistarelli, Fabio Gadducci
Added 22 Aug 2010
Updated 22 Aug 2010
Type Conference
Year 2006
Where ECAI
Authors Stefano Bistarelli, Fabio Gadducci
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