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PageRank can be gamed, though. See SEO.

The PageRank algorithm can be used for so much more than... well... page ranking :) hence the article :)

Yes, it would have been nice if the article looked into ways in which the algorithm could be gamed, for the proposed applications.

With the web the SEO practitioner can affect the inputs to the model and spend money to do so.

With the other examples I am not sure they can get an advantage by gaming it. In addition the pangrank models and how they weight it are more secret than Google. Google’s algorithm is secret but leaky (the search results are public)

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