×

Using a degree-of-unexpectedness to provide unexpected recommendations

  • US 8,700,554 B2
  • Filed: 04/13/2011
  • Issued: 04/15/2014
  • Est. Priority Date: 04/20/2010
  • Status: Active Grant
First Claim
Patent Images

1. An information presentation apparatus which presents an item to a user, comprising:

  • at least one hardware electronic device configured to effect;

    a user action history database which accumulates a history of an item used by the user;

    an item database which accumulates a plurality of sets of an item and a keyword describing each item;

    a degree-of-preference calculation unit which uses the user action history database and the item database, to thereby calculate a degree to which the user is interested in each item, as a degree of preference;

    a degree-of-unexpectedness calculation unit which uses a reciprocal of a degree of co-occurrence between keywords accumulated in the item database, to thereby calculate a degree of unexpectedness of each item;

    an integrated processing unit which processes in an integrated manner the degree of preference and the degree of unexpectedness, to thereby calculate a recommendation score of each item accumulated in the item database;

    a presentation information decision unit which uses the recommendation score calculated by the integrated processing unit, to thereby decide information of an item to be presented; and

    an information communication unit which performs information communication with a terminal, whereinthe information of the item decided by the presentation information decision unit is transmitted from the information communication unit to the terminal.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×