US Patent No: 5,265,065

Number of patents in Portfolio can not be more than 2000

Method and apparatus for information retrieval from a database by replacing domain specific stemmed phases in a natural language to create a search query

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Abstract

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 language input query is compared to the database in order to remove stopwords from the query. The remaining words of the input query are stemmed to their basic roots, and the sequence of stemmed words in the list is compared to phrases in the database to identify phrases in the search query. The phrases are substituted for the sequence of stemmed words from the list so that the remaining elements, namely the substituted phrases and unsubstituted stemmed words, form the search query. The completed search query elements are query nodes of a query network used to match representation nodes of a document network of an inference network. The database includes as options a topic and key database for finding numerical keys, and a synonym database for finding synonyms, both of which are employed in the query as query nodes.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
WEST SERVICES, INC.EAGAN, MN36

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Turtle, Howard R Rosemount, MN 3 776

Cited Art

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5,706,493 Enhanced electronic encyclopedia 19 1995
5,721,938 Method and device for parsing and analyzing natural language sentences and text 102 1995
6,539,387 Structured focused hypertext data structure 15 1997
5,832,472 Enhanced electronic encyclopedia 18 1997
6,442,438 Method for controlling a decisional process when pursuing an aim in a specific field of application, such as economical, technical, organizational or similar and system for implementing the method 9 1999
8,442,965 Query language identification 0 2007
7,849,036 Method for monitoring a decision-making process when pursuing an objective in economic, technical, and organizational fields 0 2007