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Light weight document matcher

  • US 6,286,000 B1
  • Filed: 12/01/1998
  • Issued: 09/04/2001
  • Est. Priority Date: 12/01/1998
  • Status: Expired due to Fees
First Claim
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1. A computer implemented document matcher comprising:

  • a back-end processor receiving input documents and generating a first data structure consisting of a set of local dictionaries of keywords for each document and then generating a second data structure consisting of a global dictionary resulting from the union of all keywords in the first data structure, said back-end processor computing a table of word weights; and

    a front-end processor for matching input documents against documents represented by said second data structure, said front-end processor computing a score for the documents, then sorting the documents by score, stored documents being ranked by a relevance scoring scheme according to a formula

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