![]() ![]() The Reasonable Surfer Model is an update to the original Random Surfer Model at Google. The Reasonable Surfer Model Replaced the Random Surfer Model The constant α in the formula is interpreted as the probability that the web surfer will jump randomly to any web page instead of following a forward link. ![]() The page’s rank can be interpreted as the probability that a surfer will be at the page after following many forwarding links. It ranked pages on the Web on a probability that a person following links at random might end up upon a particular page: Google’s PageRank algorithm follows what its inventor called the Random Surfer Model. Examples of unlikely followed links may include “Terms of Service” links, banner advertisements, and links unrelated to the document. This reasonable surfer model reflects that not all links associated with a document are equally likely to be followed. ![]() Systems and methods consistent with the principles of the invention may provide a reasonable surfer model that indicates that when a surfer accesses a document with a set of links, the surfer will follow some of the links with higher probability than others. ![]()
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