Tag: ‘Google’

SEO

Wednesday, September 16th, 2009

The PageRank of a webpage as used by Google is defined by a Markov chain. It is the probability to be at page i in the stationary distribution on the following Markov chain on all (known) webpages. If N is the number of known webpages, and a page i has ki links then it has transition probability \frac{\alpha}{k_i} + \frac{1-\alpha}{N} for all pages that are linked to and \frac{1-\alpha}{N} for all pages that are not linked to. The parameter α is taken to be about 0.85.

Markov models have also been used to analyze web navigation behavior of users. A user’s web link transition on a particular website can be modeled using first- or second-order Markov models and can be used to make predictions regarding future navigation and to personalize the web page for an individual user.

Hmm…  more on this later.

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