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Method for improving local descriptors in peer-to-peer file sharing

  • US 7,558,789 B2
  • Filed: 11/20/2006
  • Issued: 07/07/2009
  • Est. Priority Date: 11/20/2006
  • Status: Active Grant
First Claim
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1. In a method for searching a peer-to-peer (P2P) file sharing system of a plurality of server computers, wherein a search query is routed to the server computers for comparing query terms to a descriptor of each of a plurality of server content files in one or more of the server computers and returning as search results a descriptor of each of matching server content files, and wherein the descriptor includes at least one metadata term and a key, the improvement comprising:

  • automatically searching for a matching server content file of another of the server computers according to;


    T<

    [N
    fNq/(Nr+1)]−

    NpT

    where T is a user-defined threshold, Nf is a number of content files available for sharing, Nq is a number of search queries received, Nr is a number of responses returned in response to received search queries, and Np is the number of probe queries performed, andexpanding a first descriptor of a content file of one of the server computers using a second descriptor of the matching server content file of another of the server computers.

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