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Apparatus and method for measuring contents similarity based on feedback information of ranked user and computer readable recording medium storing program thereof

  • US 8,903,822 B2
  • Filed: 04/12/2011
  • Issued: 12/02/2014
  • Est. Priority Date: 04/13/2010
  • Status: Active Grant
First Claim
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1. An apparatus for measuring contents similarity based on feedback information from ranked users, comprising:

  • at least one processor to provide;

    a user ranking unit configured to receive from a database information on users as contents creators and feedback information on posts as contents and rank the users based on the received information;

    a user grouping unit configured to classify the users into a plurality of ranked user groups based on the ranking result;

    a sequence modeling unit configured to obtain feedbacks from the plurality of ranked user groups and model the contents as sequences of data points based on the feedbacks, each of said data points comprising a preference for the contents of one of said posts as a function of a group ranking of a respective said user group; and

    a post similarity calculation unit configured to measure similarity between the modeled sequences to obtain similarity of the posts.

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