Paper: Functional Constraints In Knowledge-Based Natural Language Understanding

ACL ID C88-1003
Title Functional Constraints In Knowledge-Based Natural Language Understanding
Venue International Conference on Computational Linguistics
Session Main Conference
Year 1988
Authors

Many knowledge-based systems of semantic interpretation rely explicitly or implicitly on an assumption of structural isomorphy between syntaotic and semantic objects, handling exceptions by ad hoc measures. In this paper I argue that constraint equations of the kind used in the LFG- (or PATR-)formalisms provide a more general, and yet restricted formalism :in which not only isomorphic correspondences are expressible, but also many cases of non-isomorphic corre- spondences. I illustrate with treatments of idioms, speech act interpretation and discourse pragmatics. 1. Background and purpose In knowledge-based natural language understanding systems the role of syntax is by no means self-evident. In the Yalean tradition /,~tchank & Riesbeck, 1981/ syntax has only played a minor role and whatev...