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---- Google’s PR algorithm and/or iteration scheme changed


Vadim - 2:33 am on Oct 8, 2004 (gmt 0)


One got PR3 and two PR1. This is inconsistent with anythig we so far heard about calculating PR.

I noticed similar September 18 and seems had clear experiment: the page got PR2. It had no inbound links and all inside site links had PR0.

See my true story at
[webmasterworld.com...]
(message #13)

I believe it was because this page had good relevant *outbound* links. Is your case similar?

It may be change in the algorithm. It looks reasonable that a collection of good relevant outbound links should have some authority, i.e. a little PR.

After all, PR algorithm was a student work of Google founders and they may change it easily and without a warning.

Also I noticed that my PR for new site changed when most were worried that they had no changes (about a month ago). It may be that for new sites PR is calculated separately using old results of the crawling.

It's also possible that Google now at least partly calculate PR continuously. There are actually no special reason to calculate PR all at once as it seems was before. The point is that any data at a given moment were collected several months so it is not an accurate current snapshot. We may as well use data slowly evolving with time to calculate PR continuously on site by site basis.

Vadim.


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