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What is PR
Home :: Business :: Ecommerce
By: Sam Leung Email Article
Word Count: 2050 Digg it | Del.icio.us it | Google it | StumbleUpon it

  

Fact: Dashboard displays Google Page Rank as a base 10 log scale that is not "factual" with Page Rank calculation

The average rating of all the pages in the index page 1. You can have "de facto" top-million, or far less than 1, using the formula page rank, but Google Toolbar displays only the numbers 0 - 10 of its pr meter. Only Google knows how to scale, and when the original is broken at every level. For example, it can take the actual beginning of the page 10000, using the formula above, in order to achieve the rank of page 4 / 10 scale on the dashboard.

Page Rank Voting Share - A simple example

Pages, which includes only a few references to them have little or no page rank in the vote share before the transfer of outgoing links. To calculate the rating voting page web pages link to it, we must focus on the second part of the page ranking forumula. Based on the attenuation coefficient of 0.85 Google whitepaper our calculations will be in the form of 0.85 (0.15 / # outbound links), which will always be equal to something close to zero. At 0.15 in the equation is found using this calculation = 0,15 (1-0.85) + 0,85 (0). As the number of outbound links on this page, a page will grow even lower ranking pages of the voting shares of each of the links.

Understanding this clear why in connection with the link farms and free for all links page does not help your page rank. Because nobody connects these FFA pages they have "low" top page with a small value of the top proliferation of voting shares. Busy free for all links pages have several hundred or thousands of outgoing links on them. If we execute quickly mathematics (being generous and giving ffa pages worth 0.25 ave)

Calculating Page Rank Voting Share Transmitted in each of the links to a page FFA

The number of outbound links FFA On Page: 50

* PR Voting Share Calculation: 0,85 (FFA PR / Outbound Links FFA) = 0.85 (0.25/50) = 0.00425 PR Voting Shares Transferred to each of the links

The number of outbound links FFA Page O: 100

* PR Voting Share Calculation: 0,85 (FFA PR / Outbound Links FFA) = 0.85 (0.25/100) = 0.002125 PR Voting Shares Transferred to each of the links

The number of outbound links About FFA Page: 500 (total FFA pages)

* PR Voting Share Calculation: 0,85 (FFA PR / Outbound Links FFA) = 0.85 (0.25/500) = 0.000425 PR Voting Shares Transferred to each of the links

The number of outbound links About FFA page: 1000

* PR Voting Share Calculation: 0,85 (FFA PR / Outbound Links FFA) = 0.85 (0.25/1000) = 0.0002125 PR Voting Shares Transferred to each of the links

From the calculations, it is not difficult to notice that there is very little in the vote share of the top transferred from FFA links on their pages outbound links, and you have several thousand links to pages of this kind see any real value at the top! That is assuming that Google does not blackhole these pages our index and actually allows top pages of the voting shares to deviate from these pages, in the first place, that in no way guarantees, and only at the discretion of Google.

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