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High efficiency document search

  • US 7,657,515 B1
  • Filed: 03/30/2007
  • Issued: 02/02/2010
  • Est. Priority Date: 03/30/2007
  • Status: Active Grant
First Claim
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1. A computer-implemented document search method comprising, by execution of program instructions by a computer system that comprises one or more computing devices:

  • in response to receiving a query including first and second lists of query terms, logically combining terms from the first and second lists to form document search sub-queries, each sub-query comprising at least one term from the first list and at least one term from the second list;

    searching a data store by executing the sub-queries such that at least two of the document search sub-queries are executed in parallel, to identify responsive documents;

    obtaining results from executing the document search sub-queries, the results including location information identifying the location of any of the terms from the first and second lists in the responsive documents;

    combining the results from all sub-queries to form a single query result that includes the location information; and

    returning the query result.

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