Patent ID: 6286000
Filing Date: 2001-09-04
Classification: G06F,Y10S

Abstract:
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; anda 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 formulaBase+Bonus,wherein Base is a number of keywords in document, keywords include title words and assigned keywords, and Bonus is a predictive value of word, the predictive value being one divided by a number of documents in which word appears.