A new patent filing from Google explains some shortcomings of PageRank and scoring approaches that the engine has used in the past. Looking for a possible connection, Bill Slawski tells us the patent
was filed on Feb. 24, 2011, the same date the first Google Panda update went into effect. The patent describes an example of how user-based data might be used to rank search results. Since the patent
provides details of how usage information scores might be calculated, Slawski is able to tell us how it works.
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