An English language question answering system for a large relational database
Communications of the ACM
Conceptual Information Processing
Conceptual Information Processing
Evaluation of natural language processors
Evaluation of natural language processors
Responding intelligently to unparsable inputs
Computational Linguistics
ATN grammar modeling in applied linguistics
ACL '80 Proceedings of the 18th annual meeting on Association for Computational Linguistics
A rule-based approach to ill-formed input
COLING '80 Proceedings of the 8th conference on Computational linguistics
Linguistic analysis of natural language communication with computers
COLING '80 Proceedings of the 8th conference on Computational linguistics
The impatient tutor: an integrated language understanding system
COLING '80 Proceedings of the 8th conference on Computational linguistics
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This paper will discuss some issues we believe to be important to the design of a natural language front-end. These are divided into three categories: conceptual coverage, linguistic coverage, and implementation issues. The section on conceptual coverage discusses the use of a domain expert, which understands what the user is saying even though the system to which the front-end is interfaced might not be able to properly do what the user wants. The section on linguistic coverage discusses attempts to allow a natural language interface to handle natural, interactive human communication. Two solutions are explored: First, the design of a robust natural-language-understanding system, composed of many experts that know about some aspect of the organization of language, is considered; second, because the design of a robust system is a large task, the intermediate goal of limiting the vocabulary and constructions that can be used while retaining all the user-oriented benefits of natural language is considered. The implementation issues considered are the design of a system in which the grammar and the domain of discourse can be easily extended and which can be used for more than one domain without extensive rewrite.