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SYSTEM AND METHOD OF DATA CACHING FOR COMPLIANCE STORAGE SYSTEMS WITH KEYWORD QUERY BASED ACCESS

  • US 20090265329A1
  • Filed: 04/17/2008
  • Published: 10/22/2009
  • Est. Priority Date: 04/17/2008
  • Status: Active Grant
First Claim
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1. A method of data caching for compliance and storage systems that provide keyword search query based access to documents, the method comprising:

  • computing a value for each data document based on a document information-retrieval (IR) relevancy metric for user keyword queries and a recency, frequency of each query;

    adapting said values to changing query frequencies and popularities; and

    selecting and evicting documents from a cache based on said values according to a knapsack solution.

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