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Methods and apparatus for using resource transition probability models for pre-fetching resources

  • US 6,088,718 A
  • Filed: 01/15/1998
  • Issued: 07/11/2000
  • Est. Priority Date: 01/15/1998
  • Status: Expired due to Term
First Claim
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1. In a system comprising:

  • a client having a resource requester;

    a server having a storage area, containing stored resources, and a resource retriever for accessing the storage area and servicing requests for any of the stored resources; and

    a network connected between the client and the server and for facilitating communication therebetween;

    a method for pre-fetching resources comprising the steps of;

    (A) in the server, providing to the client from the server, in response to a fetch request, issued by the resource requester, for a particular resource, the particular resource and a list specifying both at least one resource and a corresponding probability measure associated therewith, the probability measure defining a measure of probability of the user transitioning from the particular resource to a corresponding resource specified in the list;

    (B) in the client computer, selecting, in response to the corresponding probability measures associated with all the resources in the list, a specific resource to be pre-fetched and issuing a pre-fetch request to the server for the specific resource; and

    (C) in the server;

    (C1) in response to the pre-fetch request, downloading the specific resource from the server to the client computer;

    (C2) forming the list from a plurality of resources then specified in usage logs stored in the server; and

    (C3) updating the usage logs in response to the fetch request but not in response to the pre-fetch request.

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