PageRank is based on the link analyses algorithm. PageRank is described as a link analysis algorithm that assigns a numerical weight to each individual element of a hyperlink set of documents. The purpose is to measure its relative important with the set. The numerical weight assigned to any element is called PageRank of E. PR(E) is the denotation used.
PageRank operates on a system similar to a voting booth. Each time it finds a hyperlink to a webpage, PageRank counts that hyperlink as a vote that supports the webpage. People use many tricks to gain page rank to their websites. The more pages that link to the page, the more votes of support the webpage receives. If PageRank comes across a website that has absolutely no links connecting it to another webpage then it is not awarded any votes at all.
Tests done with a model like PageRank have shown that the system is not infallible.
The HITS algorithm is an alternate to the PageRank algorithm.
Google’s powers that be take a dim view on spamdexing. In 2005 Google designed and activated a program called nofollow, a program they designed to allow webmasters and bloggers to create links that PageRank would ingnore. The same system was also used to keep spamdexing to a minumum.
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