Minimizing visibility of stale content in web searching including revising web crawl intervals of documents
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United States of America Patent
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Jul 15, 2014
Grant Date -
Aug 29, 2013
app pub date -
Mar 22, 2013
filing date -
Aug 30, 2004
priority date (Note) -
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Abstract
A method includes comparing a first instance with a second instance of a document in a plurality of documents. The first instance is obtained from a remote location at a specified time before the second instance is obtained from the remote location, and (i) the specified time is determined in accordance with a first crawl interval associated with the document, (ii) each document in the plurality of documents is assigned to a tier in a plurality of tiers, each tier having a distinct associated range of web crawl intervals, and (iii) the first crawl interval is assigned a first tier. The method also includes computing a second crawl interval for the document, which is a function of the document comparison; and determining whether the second crawl interval is in the first tier. When the second crawl interval is not, the first document is reassigned to another tier.
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