Large Scale Internet Search at Ask.com. Tao Yang Chief Scientist and Senior Vice President InfoScale 2006. Outline. Overview of the company and products Core techniques for page ranking ExpertRank Challenges in building scalable search services Neptune clustering middleware.
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Tao YangChief Scientist and Senior Vice President
ParsingBehind Ask.com: Data Indexing and Mining
Clustering for subject communities for matched results
Ranking with knowledge and classification
local subject-specific mining
Local Subject Community
Search the index for a query
Source: InternetWeek 4/3/2000 + Fibre Channel: A Comprehensive Introduction, R. Kembel 2000, p.8. ”...based on a survey done by Contingency Planning Research."
3Impact of Component Failure in Multi-tier services
n: total # of nodes
k: each group size, a constant