Is there anything wrong with this pagerank diagram?
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Hey guyz,
I've asked many question today but forgive me :D.
I just want to know is there anything wrong with this diagram http://mygreatname.com/google-pagerank/images/google-pagerank-algorithm-03.gif
Because page 1 has 3 outgoing links but you divided 2 and page 2 has 2 outgoing links but you divided only 1. Or do I miss something?
Thank you. -
I believe the actual calculation comes from Google's internal PR measure, so if you used Toolbar PR, it would be scaled in appropriately. For example, a page with TBPR=4 would only pass 33% more equity than a page with TBPR=3 (if you treat TBPR as linear), whereas it should actually be an order of magnitude higher (we're not sure what power Google uses).
Technically, you can't calculate PR without the entire link-graph, since the maximum values are set from the link graph, and the calculation is iterative. On a small scale, you could just pick a log scale to use and approximate what happens.
I guess I'm not sure what you're trying to accomplish. Beyond a tutorial view, so many factors are laid on top of PR, that even if you could calculate the true values, they would only tell you a small part of the story.
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So you saying that if my page PR is 2 which is logarithmic based 100
And If I link from this page to another page which is PR 0 .
So what my contribution to the PR 0 page is you say 100/2=50. ?
Or just plain logic PR 2 / 1= 2 (Because there is only 1 link ) ? -
Sorry, I'm a little confused - I see dividing by 3 and 2 in the diagram you attached. Are you saying there's somewhere on our site where we're giving the wrong numbers?
Keep in mind that Toolbar PageRank is a 1-10 scale based on a logarithmic transformation of a continuous scale (or at least, one with much more precision). Since PR is probably calculated on that hidden scale, using Toolbar PR in the formula probably doesn't work as intended.
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