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SYSTEMS, METHODS, AND COMPUTER PRODUCTS FOR INFORMATION SHARING USING PERSONALIZED INDEX CACHING

  • US 20090157659A1
  • Filed: 07/15/2008
  • Published: 06/18/2009
  • Est. Priority Date: 12/18/2007
  • Status: Active Grant
First Claim
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1. A system for creating a metaindex from an index of a node A to which metadata information is added, the system comprising:

  • a processor; and

    a local disk operatively coupled to the processor,wherein the processor is configured to perform;

    in response to a determination that the metaindex of the node A is cached on the local disk, searching the metaindex of the node A;

    locating a file for access;

    determining ownership of the file to access information associated with the metaindex of the node A;

    obtaining permission to access the file;

    extracting characteristics of an index of the node A, wherein the characteristics include keywords that reflect an interest from the node A;

    receiving a search query history from a node X in the node A;

    searching the extracted index of the node A, which include a file ID;

    adding metadata to the index of the node A;

    in response to a determination that the node A includes at least one additional local metaindex, searching the at least one additional metaindex with the search query history from the node X in the node A, and merging search results with the metaindex of the node A, wherein the one additional metaindex merged to the metaindex of the node A includes an acquisition path;

    extracting a difference history of the search query history from the node X in the node A;

    selecting keywords that are included in the difference history;

    calculating a relevance ratio of keywords that are not included in the difference history with a selected keyword;

    calculating a time value for each keyword with the relevance ratio;

    in response to a determination that the keyword was sent a time greater than the time value, adding the keyword to a relevance history;

    in response to a determination that there are no other keywords included in the difference history, sending the difference history and the relevance history to the node A; and

    sending the metaindex of the node A to the node X.

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