PageRank Calculation

Discussion in 'Google' started by kamalsh01, Aug 12, 2008.

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  1. #1
    Hi,
    Academic citation literature has been applied to the web, largely by counting citations or backlinks to a given page. This gives some approximation of a page's importance or quality. PageRank extends this idea by not counting links from all pages equally, and by normalizing by the number of links on a page. PageRank is defined as follows:
    We assume page A has pages T1...Tn which point to it (i.e., are citations). The parameter d is a damping factor which can be set between 0 and 1. We usually set d to 0.85. There are more details about d in the next section. Also C(A) is defined as the number of links going out of page A. The PageRank of a page A is given as follows:
    PR(A) = (1-d) + d (PR(T1)/C(T1) + ... + PR(Tn)/C(Tn))
    Note that the PageRanks form a probability distribution over web pages, so the sum of all web pages' PageRanks will be one.
    PageRank or PR(A) can be calculated using a simple iterative algorithm, and corresponds to the principal eigenvector of the normalized link matrix of the web. Also, a PageRank for 26 million web pages can be computed in a few hours on a medium size workstation.
    You can see: http://infolab.stanford.edu/~backrub/google.html
    Thanks
     
    kamalsh01, Aug 12, 2008 IP
  2. StrongMinder

    StrongMinder Banned

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    #2

    So what???? R u going to caluculate your PR Manually???????
     
    StrongMinder, Aug 12, 2008 IP
  3. coolguy`

    coolguy` Banned

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    #3
    it is very nice..
    can you prove it with some examples...:confused::confused:

    I have one suggestion to you, if you are posting this type of Informative threads. please provide some examples..


     
    coolguy`, Aug 12, 2008 IP
  4. SEO_WatchDog

    SEO_WatchDog Well-Known Member

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    #4
    For practical use - why dn't you make a list of the things that actually influence the PR - than we could discuss how important this or that factor. Your citation is smth everybody comes across one day...
     
    SEO_WatchDog, Aug 12, 2008 IP
  5. exipnos

    exipnos Peon

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    #5
    exipnos, Aug 12, 2008 IP
  6. lightlysalted

    lightlysalted Active Member

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    #6
    you shouldn't worry about page rank too much, it will come all by itself if you just focus on building back links to your site. If we all spent as much time building backlinks as we did worrying about page rank, we would have some kick ass sites
     
    lightlysalted, Aug 12, 2008 IP
  7. so.ray2000

    so.ray2000 Peon

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    #7
    what can we do ,even though we know google did a wrong calculation about our site?
     
    so.ray2000, Aug 12, 2008 IP
  8. informationHell

    informationHell Peon

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    #8
    lol... nice knowing it :)
     
    informationHell, Aug 13, 2008 IP
  9. Cooldracu

    Cooldracu Banned

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    #9

    Please expalin the benefit of your THEORY about PR!!!!!! How will help this in SEO???? :confused:
     
    Cooldracu, Aug 13, 2008 IP
  10. sukro

    sukro Peon

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    #10
    hmm... interesting
     
    sukro, Aug 13, 2008 IP
  11. minstrel

    minstrel Illustrious Member

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    #11
    Pffttt...

    First, this isn't original and it's far from new.

    Second, if you really believe that's all that goes into calculating PR these days, you're going to be severely disappointed.
     
    minstrel, Aug 13, 2008 IP