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MOBILITY
2009
ACM
16 years 20 days ago
UbiPay: minimizing transaction costs with smart mobile payments
Implementing an electronic payment system involves striking a balance between usability and security. Systems that allow payments to be completed with little effort on the part of...
Vili Lehdonvirta, Hayuru Soma, Hitoshi Ito, Tetsuo...
RECSYS
2009
ACM
16 years 20 days ago
Rate it again: increasing recommendation accuracy by user re-rating
A common approach to designing Recommender Systems (RS) consists of asking users to explicitly rate items in order to collect feedback about their preferences. However, users have...
Xavier Amatriain, Josep M. Pujol, Nava Tintarev, N...
SIGECOM
2009
ACM
117views ECommerce» more  SIGECOM 2009»
16 years 20 days ago
Sybilproof transitive trust protocols
We study protocols to enable one user (the principal) to make potentially profitable but risky interactions with another user (the agent), in the absence of direct trust between ...
Paul Resnick, Rahul Sami
DASFAA
2008
IEEE
106views Database» more  DASFAA 2008»
16 years 19 days ago
Flood Little, Cache More: Effective Result-Reuse in P2P IR Systems
State-of-the-art Peer-to-Peer Information Retrieval (P2P IR) systems suffer from their lack of response time guarantee especially with scale. To address this issue, a number of tec...
Christian Zimmer, Srikanta J. Bedathur, Gerhard We...
GLOBECOM
2008
IEEE
16 years 19 days ago
A Theory-Driven Distribution Algorithm for Peer-to-Peer Real Time Streaming
—Many distribution algorithms have been proposed up to now for P2P real time streaming. However, due to the lack of basic theoretical results and bounds, common sense and intuiti...
Lorenzo Bracciale, Francesca Lo Piccolo, Dario Luz...