ULINK: a semantics-driven approach to understanding ungrammatical input

Authors:
Jeffrey D. Kirtner;Steven L. Lytinen
Affiliations:
Artificial Intelligence Laboratory, The University of Michigan, Ann Arbor, MI;Artificial Intelligence Laboratory, The University of Michigan, Ann Arbor, MI
Venue:
AAAI'91 Proceedings of the ninth National conference on Artificial intelligence - Volume 1
Year:
1991

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Abstract

This paper describes UUNK, a program designed to understand ungrammatical input. While most previous work in the field has relied on syntactic techniques or sublanguage analysis to parse grammatical errors, UUNK uses a semantics-driven algorithm to process such input. The paper gives a brief overview of LINK, the unification-based system upon which ULINK is built; special attention is given to those aspects of LINK which allow ULINK to use semantics to process ill-formed input. The details of ULINK's algorithm are then discussed by considering two examples. The paper concludes with a discussion of related research and problems which remain to be solved.