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CORR
2006
Springer
160views Education» more  CORR 2006»
13 years 6 months ago
Frugality ratios and improved truthful mechanisms for vertex cover
In set-system auctions, there are several overlapping teams of agents, and a task that can be completed by any of these teams. The auctioneer's goal is to hire a team and pay...
Edith Elkind, Leslie Ann Goldberg, Paul W. Goldber...
STOC
2009
ACM
167views Algorithms» more  STOC 2009»
14 years 7 months ago
Universally utility-maximizing privacy mechanisms
A mechanism for releasing information about a statistical database with sensitive data must resolve a trade-off between utility and privacy. Publishing fully accurate information ...
Arpita Ghosh, Tim Roughgarden, Mukund Sundararajan
CSE
2009
IEEE
13 years 10 months ago
Extended Dempster-Shafer Theory in Context Reasoning for Ubiquitous Computing Environments
—Context, the pieces of information that capture the characteristics of ubiquitous computing environment, is often imprecise and incomplete due to user mobility, unreliable wirel...
Daqiang Zhang, Jiannong Cao, Jingyu Zhou, Minyi Gu...
CIKM
2009
Springer
14 years 1 months ago
Semi-nonnegative matrix factorization with global statistical consistency for collaborative filtering
Collaborative Filtering, considered by many researchers as the most important technique for information filtering, has been extensively studied by both academic and industrial co...
Hao Ma, Haixuan Yang, Irwin King, Michael R. Lyu
SIGIR
2006
ACM
14 years 20 days ago
A study of statistical models for query translation: finding a good unit of translation
This paper presents a study of three statistical query translation models that use different units of translation. We begin with a review of a word-based translation model that us...
Jianfeng Gao, Jian-Yun Nie