An English language question answering system for a large relational database
Communications of the ACM
Generating English discourse from semantic networks
Communications of the ACM
Cooperative responses from a portable natural language data base query system.
Cooperative responses from a portable natural language data base query system.
Augmented phrase structure grammars
TINLAP '75 Proceedings of the 1975 workshop on Theoretical issues in natural language processing
Strategies for effective paraphrasing
COLING '88 Proceedings of the 12th conference on Computational linguistics - Volume 2
Hinting by paraphrasing in an instruction system
COLING '88 Proceedings of the 12th conference on Computational linguistics - Volume 2
Experiments on Generating Questions About Facts
CICLing '07 Proceedings of the 8th International Conference on Computational Linguistics and Intelligent Text Processing
A survey of paraphrasing and textual entailment methods
Journal of Artificial Intelligence Research
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The design and implementation of a paraphrase component for a natural language question-answering system (CO-OP) is presented. The component is used to produce a paraphrase of a user's question to the system, which is presented to the user before the question is evaluated and answered. A major point made is the role of given and new information in formulating a paraphrase that differs in a meaningful way from the user's question. A description is also given of the transformational grammar that is used by the paraphraser.