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Wednesday, October 19th, 2005, 4:59 pm

The Demise of PageRank

PageRank versus traffic
The number of sites with PageRank 10 is tiny when compared to the number of sites with PageRank 0. Conversely, traffic is largely centralised in sites with a high PR (more details)

A little tour around Google has led me to a questionably out-of-date article from the Register. This Article is 2 years old, but it seems more true than ever these days because scraping and link-related spam/attacks are constantly on the rise.

Google has made no secret of its goal to “understand” the web, an acknowledgement that its current brute-force text index produces search results with little or no context. The popularity of Teoma demonstrates that even a small index can produce superior results for certain kind of searches. Teoma leans on existing classification systems.

While Google relied on PageRankâ„¢ to provide context, all was well. But PageRank is now widely acknowledged to be broken, so new, smarter tricks are required.

Regarded as heresy when we raised the issue last spring, now some of Google’s warmest admirers, MetaFilter’s Matt Haughey and web designer Jason Kottke have acknowledged the problem.

As Gary Stock noted here last May, Google “didn’t foresee a tightly-bound body of wirers. They presumed that technicians at USC would link to the best papers from MIT, to the best local sites from a land trust or a river study – rather than a clique, a small group of people writing about each other constantly. They obviously bump the rankings system in a way for which it wasn’t prepared.”

The intersting fact is that Google themselves acknowledge the problem and I am sure difficulties have intensified, if anything, in the past 2 years. The specific reference to bloggers proves that very point as a new blog is set up every second these days.

Regarding the point about pages being indexed rather than learned from or understood, that is one of the catalysts that led me to starting Iuron. That site has attracted tremendous levels of interest since the idea had been conceived on the night on October 9th. I set up the Web site and made an official announcement the following day. Yesterday I finished a 1-page formal proposal and I contacted the person who is perceived by some as the father of the Semantic Web. He was once my lecturer.

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