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Answering queries using query signatures and signatures of cached semantic regions

  • US 6,347,314 B1
  • Filed: 05/19/1999
  • Issued: 02/12/2002
  • Est. Priority Date: 05/29/1998
  • Status: Expired due to Term
First Claim
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1. A method of obtaining answers to queries using a system that includes memory with a set of locations in memory defining a cache, the cache including, for each of a set of one or more semantic regions, contents that include one or more items of data;

  • the method comprising;

    (a) obtaining a query Q;

    (b) using the query Q to obtain a query signature SQ; and

    (c) using the query signature SQ and a region signature SR for at least one of the semantic regions to find one or more semantic regions that are qualified and using the contents of at least one of the qualified regions to obtain an answer to the query Q.

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