Browsing MIT Theses by Author "Zacharia, Giorgos, 1974-"

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    • Collaborative reputation mechanisms for online communities 

      Zacharia, Giorgos, 1974- (Massachusetts Institute of Technology, 1999)
      The members of electronic communities are often unrelated to each other, they may have never met and have no information on each other's reputation. This kind of information is vital in Electronic Commerce interactions, ...

    • Regularized algorithms for ranking, and manifold learning for related tasks 

      Zacharia, Giorgos, 1974- (Massachusetts Institute of Technology, 2009)
      This thesis describes an investigation of regularized algorithms for ranking problems for user preferences and information retrieval problems. We utilize regularized manifold algorithms to appropriately incorporate data ...