Ranking-the-Web-Frontier

Ranking-the-Web-Frontier - Nadav Eiron, Kevin S.McCurley,...

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Nadav Eiron, Kevin S.McCurley, JohA.Tomlin IBM Almaden Research Center WWW’04 CSE 450 Web Mining Presented by Zaihan Yang
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Propose algorithmic innovations for the basic PageRank paradigm. Problem of Web Frontier ( Dangling Nodes) Distinguish different types of Dangling Nodes Propose four techniques for penalty pages Problem of computing pagerank and rank manipulation Explore Web hierarchical structure HostRank & DirRank algorithms
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PageRank Ideal Model or The web graph should be strongly connected. A should be stochastic. (irreducible and aperiodic)
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PageRank Improved Model Add a link from each page to every page and give each link a small transition probability controlled by a parameter α. Random Jump (teleportation) virtual node n+1 Variations Issues Parameter α. Random jump---uniform distribution Dangling Nodes
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Dangling Nodes Dangling nodes : Nodes that either have no outlinks or for which no outlinks are known. How do pages become dangling nodes
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Ranking-the-Web-Frontier - Nadav Eiron, Kevin S.McCurley,...

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