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Computer processes for identifying related items and generating personalized item recommendations

  • US 7,945,475 B2
  • Filed: 08/20/2007
  • Issued: 05/17/2011
  • Est. Priority Date: 09/18/1998
  • Status: Expired due to Fees
First Claim
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1. A computer-implemented method of selecting items to recommend to a user, the method comprising:

  • identifying a plurality of items selected by a user from an electronic repository of items;

    for each of the plurality of items selected by the user, looking up, from an item-to-item mapping structure, a respective set of related items and, for each related item, a respective data value representing a degree to which the related item is related to the respective item selected by the user, each data value being specific to a particular item pair;

    generating a combined list of related items that comprises the plurality of sets of related items looked up from the item-to-item mapping structure;

    sorting the combined list of related items based at least partly on the looked up data values associated with the related items; and

    selecting, from the sorted, combined list of related items, a subset of items to recommend to the user;

    said method performed automatically by a computer system that comprises one or more computers.

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