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Method and apparatus for retrieving documents based on information other than document content

  • US 6,360,215 B1
  • Filed: 11/03/1998
  • Issued: 03/19/2002
  • Est. Priority Date: 11/03/1998
  • Status: Expired due to Term
First Claim
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1. A method of selecting electronic documents from among a plurality of electronic documents, the method comprising the steps of:

  • storing a tag word in an index in association with information identifying an electronic document, in which the tag word comprises data that does not appear in a content of the electronic document;

    receiving a search query;

    modifying the search query to create a modified search query by adding to the search query a search term that references the tag word; and

    creating a set of search results by searching the index based on the modified search query;

    wherein the step of storing includes the steps of;

    receiving data that indicates one or more tag words and criteria to be used to determine which of the plurality of documents should be associated with each of the one or more tag words, and in which at least a portion of the data is expressed in a wildcard format;

    retrieving a location identifier of each of the documents that are indexed in the index;

    matching each location identifier to each of the criteria; and

    when one location identifier matches one of the criteria, storing, in the index, information associating such location identifier with one or more of the tag words.

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