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» Social Systems: Can We Do More Than Just Poke Friends
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CSE
2009
IEEE
13 years 12 months ago
Surfing a Web of Trust: Reputation and Reciprocity on CouchSurfing.com
—Reputation mechanisms are essential for online transactions, where the parties have little prior experience with one another. This is especially true when transactions result in...
Debra Lauterbach, Hung Truong, Tanuj Shah, Lada A....
CSCW
2008
ACM
13 years 7 months ago
Social summarization: does social feedback improve access to speech data?
We extend the notion of social tagging to construct social summaries of complex multimedia materials. Our system allows students to apply time-indexed multimedia tags such as hand...
Vaiva Kalnikaité, Steve Whittaker
SIGIR
2009
ACM
13 years 11 months ago
Learning to recommend with social trust ensemble
As an indispensable technique in the field of Information Filtering, Recommender System has been well studied and developed both in academia and in industry recently. However, mo...
Hao Ma, Irwin King, Michael R. Lyu
SIGMOD
2011
ACM
179views Database» more  SIGMOD 2011»
12 years 8 months ago
No free lunch in data privacy
Differential privacy is a powerful tool for providing privacypreserving noisy query answers over statistical databases. It guarantees that the distribution of noisy query answers...
Daniel Kifer, Ashwin Machanavajjhala
WSDM
2010
ACM
227views Data Mining» more  WSDM 2010»
14 years 2 months ago
Folks in folksonomies: Social link prediction from shared metadata
Web 2.0 applications have attracted a considerable amount of attention because their open-ended nature allows users to create lightweight semantic scaffolding to organize and shar...
Rossano Schifanella, Alain Barrat, Ciro Cattuto, B...