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Information retrieval system utilizing wavelet transform

  • US 6,070,133 A
  • Filed: 07/21/1997
  • Issued: 05/30/2000
  • Est. Priority Date: 07/21/1997
  • Status: Expired due to Term
First Claim
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1. A method for automatically determining a semantic structure of an electronically formatted natural language based document consisting essentially of words, the method comprising the steps of:

  • a) providing a numerical representation as a digital signal of the words within the document wherein said numerical representation contains some information relating the semantic content of the word to the semantic content of the documentb) performing a wavelet transform on said signal, thereby determining the semantic structure.

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