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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United States of America Patent

PATENT NO 5265065
SERIAL NO

07773101

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Abstract

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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, MN6

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Turtle, Howard R Woodbury, MN 3 1072

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7571157 Filtering search results 19 2004
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7602785 Method and system for performing longest prefix matching for network address lookup using bloom filters 21 2005
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8126818 Knowledge-management systems for law firms 1 2003
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7580939 Systems, methods, and software for classifying text from judicial opinions and other documents 2 2005
8001457 System, method, and software for inserting hyperlinks into documents 2 2006
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7567961 Document-classification system, method and software 5 2006
7620626 System, method, and software for identifying historically related legal opinions 7 2006
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8600974 System and method for processing formatted text documents in a database 1 2009
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7984053 System, method, and software for identifying historically related legal cases 2 2009
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8799768 System for converting data to a markup language 0 2010
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6185576 Defining a uniform subject classification system incorporating document management/records retention functions 205 1998
 
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7333966 Systems, methods, and software for hyperlinking names 21 2002
 
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7840524 Method and apparatus for indexing, searching and displaying data 5 2006
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THOMSON GLOBAL RESOURCES AG (1)
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* Cited By Examiner