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        riddles >> general problem-solving / chatting / whatever >> hyperlinks as bets: pagerank as artificial market
        
(Message started by: amichail on Jun 28^th, 2007, 6:29pm)

Title: hyperlinks as bets: pagerank as artificial market
Post by amichail on Jun 28^th, 2007, 6:29pm

When page X links to Y, then the pagerank of X goes up (down) if the pagerank of Y goes up (down).

Would such a thing make sense?

Is it prone to spamming?

What sort of formula would you use for this modified pagerank computation?

Title: Re: hyperlinks as bets: pagerank as artificial mar
Post by Grimbal on Jun 29^th, 2007, 2:09am

I didn't see first that it is the reverse of the usual relationship. The linking page gets the reputation of the linked page.

That would be too easy, wouldn't it? Make random searches, save the highest-ranking result and link to these. That would boost your ranking.

Title: Re: hyperlinks as bets: pagerank as artificial mar
Post by Barukh on Jun 29^th, 2007, 4:23am

on 06/28/07 at 18:29:38, amichail wrote:

What sort of formula would you use for this modified pagerank computation?

The usual PR of a page U sums over all the links to U (back-links).

In this modified version, the sum would be over all the pages U links to (forward-links).

???

Title: Re: hyperlinks as bets: pagerank as artificial mar
Post by amichail on Jun 29^th, 2007, 6:05am

on 06/29/07 at 02:09:03, Grimbal wrote:

But it looks at CHANGES in (modified?) pagerank. The question is whether all such approaches are easy to spam.

Title: Re: hyperlinks as bets: pagerank as artificial mar
Post by amichail on Jul 10^th, 2007, 6:45pm

No insights on this?