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Document cache replacement policy for automatically generating groups of documents based on similarity of content

  • US 6,842,876 B2
  • Filed: 04/14/1998
  • Issued: 01/11/2005
  • Est. Priority Date: 04/14/1998
  • Status: Expired due to Fees
First Claim
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1. A cache management system communicating with a document storage device, a plurality of documents stored on the document storage device, the system defining a replacement policy of a cache memory and comprising:

  • a group generator that automatically identifies a plurality of groups of documents from the plurality of documents in the cache memory based on a similarity of a content of the plurality of documents without a user input;

    a display for displaying an ordered list of groups, each group in the list being ranked based on at least one or more of a least recently used metric of that group, a relevance metric of that group, a size of that group, a radius of that group, and a total number of documents in that group;

    a selector that the user uses to select at least one of the groups of documents displayed in the ordered list; and

    an operation command input device that accepts an operation command input by the user that instructs a cache manager to free up space in the cache memory;

    wherein the cache manager manages storage of the selected at least one group of documents to free up space in the cache memory based on the selection made by the selector and the operation command by acting on the selected at least one group of documents.

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