Patent ID: 6883135
Filing Date: 2005-04-19
Classification: G06F,Y10S

Abstract:
1. A computer-implemented method for selectively accessing a document in response to a current retrieval request, the document being identified by a document address specification, the document having been retrieved during a previous retrieval request, the method comprising: determining whether to access the document during the current retrieval request by identifying with the aid of a statistical model whether the document is likely to have changed since a previous retrieval request; and accessing the document if the determination produces an instruction indicative that the document at the document address specification should be accessed during the current retrieval request, wherein determining whether to access the document during the current retrieval request comprises computing a probability that the document is likely to have changed since a previous retrieval request, and further wherein computing the probability that the document is likely to have changed since a previous retrieval request comprises: