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Number-range search system and method

  • US 7,693,824 B1
  • Filed: 10/20/2003
  • Issued: 04/06/2010
  • Est. Priority Date: 10/20/2003
  • Status: Active Grant
First Claim
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1. A computer-implemented method of querying number-range searches, comprising:

  • at a search engine having one or more processors and memory, the memory of the search engine storing one or more programs to be executed by the one or more processors of the search engine,receiving a number-range search query having a number range, wherein the number range includes a boundary number;

    generating an expression of numerical index terms based on the boundary number, wherein a respective numerical index term in the expression includes information indicative of an integral portion of a logarithm of the boundary number;

    searching a document index of the search engine using the expression to identify one or more documents containing numbers that satisfy the expression; and

    returning a result in accordance with at least a subset of the identified documents.

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