Paper: Balancing Clarity And Efficiency In Typed Feature Logic Through Delaying

ACL ID P04-1031
Title Balancing Clarity And Efficiency In Typed Feature Logic Through Delaying
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 2004
Authors

The purpose of this paper is to re-examine the bal- ance between clarity and efficiency in HPSG design, with particular reference to the design decisions made in the English Resource Grammar (LinGO, 1999, ERG). It is argued that a simple generaliza- tion of the conventional delay statements used in logic programming is sufficient to restore much of the functionality and concomitant benefit that the ERG elected to forego, with an acceptable although still perceptible computational cost. 1 Motivation By convention, current HPSGs consist, at the very least, of a deductive backbone of extended phrase structure rules, in which each category is a descrip- tion of a typed feature structure (TFS), augmented with constraints that enforce the principles of gram- mar. These principles typically take ...