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WWW
2006
ACM
14 years 10 months ago
Topical TrustRank: using topicality to combat web spam
Web spam is behavior that attempts to deceive search engine ranking algorithms. TrustRank is a recent algorithm that can combat web spam. However, TrustRank is vulnerable in the s...
Baoning Wu, Vinay Goel, Brian D. Davison
WWW
2003
ACM
14 years 10 months ago
Supporting Cooperative Activities with Shared Hypermedia Workspaces on the WWW
Team members usually cooperate on a business process by partitioning it into several activities, which in turn generate one or more work items. Work items either need to be proces...
Jörg M. Haake, Jessica Rubart, Weigang Wang
SIGCSE
2009
ACM
143views Education» more  SIGCSE 2009»
14 years 4 months ago
Thinking about computational thinking
Jeannette Wing’s call for teaching Computational Thinking (CT) as a formative skill on par with reading, writing, and arithmetic places computer science in the category of basic...
James J. Lu, George H. L. Fletcher
WINE
2009
Springer
199views Economy» more  WINE 2009»
14 years 4 months ago
Externalities in Keyword Auctions: An Empirical and Theoretical Assessment
It is widely believed that the value of acquiring a slot in a sponsored search list (that comes along with the organic links in a search engine’s result page) highly depends on ...
Renato Gomes, Nicole Immorlica, Evangelos Markakis
SIGIR
2009
ACM
14 years 4 months ago
Approximating true relevance distribution from a mixture model based on irrelevance data
Pseudo relevance feedback (PRF), which has been widely applied in IR, aims to derive a distribution from the top n pseudo relevant documents D. However, these documents are often ...
Peng Zhang, Yuexian Hou, Dawei Song