Thursday, March 15, 2012

Google Page Rank Formula

Posted by NiKE at 12:00 AM



Hi friends I think you are in problem and eager to know that how google is counting page rank of any website or blog? In this post i am sharing a new Formula by which you can understand how google is calculating a pagerank of any site.This formula is not too much long and need very high skill to understand it's a simple mathematical formula which we learn in to our 4-5 standard.for more detail read full article.
Formula :

Google Ranking Formula = {(1-d)+a (RS)} * {(1-e)+b (PR * fb)} * {(1-f)+c (LS)}
Where:

RS = RelevanceScore: (Score based on keywords appearing in Title, Meta tags, Headlines, Body text, URL, Alt
         text, Title attribute, anchor text etc. of your site)

PR = PageRank: (Score based on number and PR value of pages linking to your site. Original formula is PR (A)
          = (1-d) + d (PR (t1)/C (t1) + a+ PR (tn)/C (tn)), where PR of page link is the sum of the PR of each page
          linking to it divided by the number of outgoing links on each of those pages. C is a dampening factor
          believed to be equal to 0.15)

LS = LocalScore: (Score computed from expert documents. Has variables and different values for search term
         appearing in title (16), headline (6), anchor text (1), search term density etc. Figures in parenthesis are the
         original values, which may have been changed by Google)

a, b, c = Tweak Weight Controls: (available to Google for fine-tuning the results)

d, e, f = Dampener Controls: (available to Google for fine-tuning the results. We believe that the value of a is
              currently set at zero.)

fb = FactorBase: (The PageRank scale of 1 to 10 on Google bar is not linier but an exponential/logarithmic one.
       As per our internal analysis, we believe that it is a base close to 8. This means that PR5 is 8 times more in 
       value than PR4. As such, a PR8 website has a value 4000 times more than a PR4 website. This factor
       somehow needs to be built into the algo formula. We have therefore taken a fb value to accommodate this
       factor)

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