×

System and method for identifying query-relevant keywords in documents with latent semantic analysis

  • US 20060106767A1
  • Filed: 11/12/2004
  • Published: 05/18/2006
  • Est. Priority Date: 11/12/2004
  • Status: Active Grant
First Claim
Patent Images

1. A method for identifying a set of query-relevant keywords comprised in one or more documents obtained from a query, wherein the query need not comprise the keywords, comprising:

  • a) creating a term-weight matrix M comprising one or more document term-weight vectors d, wherein each document term-weight vector d comprises information on the frequency in one of the one or more documents obtained from the terms in the query;

    b) creating an expanded query term-weight vector qexpanded from the query term-weight vector q and the term-weight matrix M; and

    c) using the expanded query term-weight vector qexpanded and the document term-weight vectors d, locating a set of keywords identified as terms related to the query and also comprised in at least one of the documents, wherein the query need not comprise the keywords.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×