1
Howard R Turtle: Method and apparatus for information retrieval from a database by replacing domain specific stemmed phases in a natural language to create a search query. West Publishing Company, Kinney & Lange, November 23, 1993: US05265065 (380 worldwide citation)

A computer implemented process for creating a search query for an information retrieval system in which a database is provided containing a plurality of stopwords and phrases. A natural language input query defines the composition of the test of documents to be identified. Each word of the natural l ...


2
Howard R Turtle, Gerald J Morton, F Kinley Larntz: System of document representation retrieval by successive iterated probability sampling. West Publishing Company, Kinney & Lange, January 30, 1996: US05488725 (352 worldwide citation)

An information retrieval system based on probabilities that documents meet information needs. The frequency of occurrence of a representation in a collection of documents is estimated by identifying the frequency of occurrence of the representation in a sample of documents and calculating the differ ...


3
Howard R Turtle: Concept matching of natural language queries with a database of document concepts. West Publishing Company, Kinney & Lange, May 23, 1995: US05418948 (280 worldwide citation)

A computer implemented process for creating a search query for an information retrieval system in which a database is provided containing a plurality of stopwords and phrases. A natural language input query defines the composition of the text of documents to be identified. Each word of the natural l ...