PageRank calculations

Discussion in 'Link Development' started by 8everything, Jul 31, 2007.

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  1. #1
    Today someone showed me their university linear algebra text book and.. there was a section for calculating Google's PageRank!

    My question is: Does anyone actually calculate this when link building (to see how much a link will benefit their site, how many they need to get a PR ___ etc etc) ?
     
    8everything, Jul 31, 2007 IP
  2. Jim4767

    Jim4767 Prominent Member

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    #2
    I actually used one of those calculating equations a couple of years ago to determine the best internal linking structure for my website. It showed the subtantial effect your internal link structure has on the home page, and it would instantly recalculate how different internal linking models affected the home page PR. I found it very helpful. Sorry, can't recall the url of the tool.
     
    Jim4767, Jul 31, 2007 IP
  3. Greg Carnegie

    Greg Carnegie Peon

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    #3
    Isn't Google PageRank logharitmic? But anwyway this just book name who knows what is inside ;)

    I do not think it is possible for us to determine PR. PageRank calculation is ongoing process whenever someone adds or removes links PageRank for many sites can change it somewhat like chain reaction.

    For example:
    I get link at Yahoo.com -> my sites PR increases -> PR of site i link to increses -> and so on.

    Now there are many changes like that a day, it is impossible what Google calculated and what not.

    Of course it only refers to outgoing links because as i see Jim4767 did great job on inbound links.
     
    Greg Carnegie, Aug 1, 2007 IP
  4. syedwasi87

    syedwasi87 Active Member

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    #4
    didnt know Google's PR calculating ALgo was in Univ text books toO

    just curious..which book was it? :cool:
     
    syedwasi87, Aug 1, 2007 IP
  5. allout

    allout Prominent Member

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    #5
    The problem with the book is that Google changes a lot and what might have been the correct way when the book was written may have changed by time it was published. The other problem is keeping up on changing links. If someone changes the link to your site, Google may catch it quick but you may not. I think it is impossible to calculate your own PR.
     
    allout, Aug 1, 2007 IP
  6. Warkot

    Warkot Peon

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    #6
    I do this all the time when figuring out how much a link from specific page will help me in terms of PR.

    I simply use the original Google PageRank formula for this:

    Link Value = (X * 0.85) / Y

    X = Page PR
    Y = number of total links on this page

    There's a neat backlink research tool I use when researching competitors etc, and it does this for me automatically.

    But you can do this with a calculator, of course.

    Warkot

    PS: I'd never imagine an algebra textbook telling students how to calculate Google PageRank! Google's everywhere...
     
    Warkot, Aug 1, 2007 IP