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Elizabeth D Liddy, Woojin Paik, Mary E McKenna, Michael L Weiner, Edmund S Yu, Theodore G Diamond, Bhaskaran Balakrishnan, David L Snyder: User interface and other enhancements for natural language information retrieval system and method. Textwise, Townsend and Townsend and Crew, February 15, 2000: US06026388 (821 worldwide citation)

Techniques for generating sophisticated representations of the contents of both queries and documents in a retrieval system by using natural language processing (NLP) techniques to represent, index, and retrieve texts at the multiple levels (e.g., the morphological, lexical, syntactic, semantic, dis ...


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Elizabeth D Liddy, Woojin Paik, Edmund S Yu, Ming Li: Multilingual document retrieval system and method using semantic vector matching. Syracuse University, Townsend and Townsend and Crew, December 21, 1999: US06006221 (567 worldwide citation)

A document retrieval system where a user can enter a query, including a natural language query, in a desired one of a plurality of supported languages, and retrieve documents from a database that includes documents in at least one other language of the plurality of supported languages. The user need ...