1
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 (792 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 ...


2
Elizabeth D Liddy, Woojin Paik, Mary E McKenna, Ming Li: Natural language information retrieval system and method. Syracuse University, Townsend and Townsend and Crew, October 5, 1999: US05963940 (628 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 ...


3
Carolina Rubio de Hita, David van den Akker, Erik C E Govaers, Frank M J Platteau, Kurt Van Deun, Melissa Macpherson, Peter de Bie, Sophie Laviolette: Natural language information retrieval system and method. Novell, James H Morris, Alan B Sherr, Wolf Greenfield & Sack P C, June 27, 2000: US06081774 (469 worldwide citation)

An information retrieval system that represents the content of a language-based database being searched as well as the user's natural language query. In accordance with one aspect of the invention, the information retrieval system includes a non-real-time development system for automatically creatin ...