Soft Constraints at Interfaces

Nick Pendar

Abstract

Assuming that grammar is best modeled as a set of modules each representing a constraint system, like other human cognitive faculties, these constraint systems are bound to disagree and soft constraints are needed for conflict resolution among modules. This paper outlines an approach to incorporate soft constraints among grammar modules. The paper first goes over the issue of modularity and conflicting requirements. It then summarizes a generalized theory of soft constraint satisfaction (SCSP). Finally, it outlines a linguistic constraint system based on SCSP theory. It then shows how the type antecedent constraints of HPSG can be extended in an SCSP-based framework to allow for constraint violations and gradient constraints.
Proceedings of GEAF07; CSLI Publications On-line
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