Monte Carlo methods in PageRank computation: When one iteration is sufficient


Avrachenkov, K. and Litvak, N. and Nemirovsky, D. and Osipova, N. (2005) Monte Carlo methods in PageRank computation: When one iteration is sufficient. [Report]

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PageRank is one of the principle criteria according to which Google ranks Web pages. PageRank can be interpreted as a frequency of visiting a Web page by a random surfer and thus it reflects the popularity of a Web page. Google computes the PageRank using the power iteration method which requires about one week of intensive computations. In the present work we propose and analyze Monte Carlo type methods for the PageRank computation. There are several advantages of the probabilistic Monte Carlo methods over the deterministic power iteration method: Monte Carlo methods provide good estimation of the PageRank for relatively important pages already after one iteration; Monte Carlo methods have natural parallel implementation; and finally, Monte Carlo methods allow to perform continuous update of the PageRank as the structure of the Web changes.
Item Type:Report
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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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