123_free_links

What do you think how Google design the PageRank DataBase Table?
Dose it look like this?

PageRank Table Fields
[ ID ] [ URL ] [ Rate ]

or by other ways?
What is your though?

Thanks

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VPM

My suggestion:
[ID] [DOMAIN/URL] [IRRELEV. BL] [IRRELEV. BL PR] [RELEV. BL] [RELEV. BL PR] [URL PR]

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jumpenjuhosaphat

If they were to store it by relevance, your table would be entirely too simple. There would have to be a scale, and a reference as to what it is relevant to. Besides that, PR isn't based on relevance, it's base on backlinks.

Each page on the internet would have it's own row, the row would include all links that are present on the page. It would also have a field for that sites current actual PR, which would be a decimal number between 0 and 1, the default number would be .01. Then, there would be some type of algorithm applied to each of the links in that row to determine how much link juice would be passed. Links closer to the top of the page would have more juice, whereas links closer to the bottom of the page would have less. Maybe the table is placed in the same order that the spider finds the links. So the first link it finds will have more juice, the second, a little less juice, and so on.

Okay, now you have every page on the internet placed in a table. Now, you must calculate how much PR value each page has, you do this by going through each of those entries on the internet, probably about 400,000,000,000 of them. You do this once, and you'll have started, but I think that Google does this hundreds and thousands of times. They don't stop, they continuously go through all of the numbers, sometimes adding new pages and new links. All of this to calculate something that has little use. Then, once every 3 or 4 months, they will take the data from that massive table, and they will export it. The exported data is what you see in the toolbar. That's why they say that the TBPR isn't reflective of your actual PR.

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misterx

Why are you asking?
You want to hack them?

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jumpenjuhosaphat

LOL. I think it would be handy info to have if you had about 4 or 5 hundred bucks to throw at servers per month, you could recreate Googles algo and come up with an extremely accurate PR predictor.

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wombleme

Interesting. You'd need to know the alog first of course, short of industrial espionage you could evolve the algorithm. The amount of data and processing power you'd need to beforehand though would be immense...

jumpenjuhosaphat

The algo is given in their patent, so that part of it is already taken care of. The tough part I think, like you said, would be having sufficient processor and server power. You'd definitely have to charge for a service like that.

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eprosumer

Amazing information here. You must also bear in mind pagerank is distributed equally through each link in a page. so 1 x PR 4 page will give you
either 2 PR4 pages
20 pr 3 pages
50 PR 2 pages
or 70 PR 1 pages

depending on how many outbound links you have on the PR4 page.

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jumpenjuhosaphat

Thats the big thing though, how many links are present on the PR4 page? Including external and internal links. Some speculation quips that the position within the page of each link helps to determine how much juice is handed off to that link.

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123_free_links

Another question: about PR updating !!!
Does Google
1: "update Pagerank Table one by one URL"
or
2: "delete whole old table then replace a new table"
or
3: step 1 then step 2

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jumpenjuhosaphat

I think that it updates the information for the URL's one by one. That's why some sites have seen some changes already, but others haven't seen anything. And that's why some datacenters are giving different information. I don't think that they actually delete anything though, I think it's overwritten.

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