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» Evaluating a Qualitative Reasoner
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SIGMOD
2002
ACM
134views Database» more  SIGMOD 2002»
14 years 10 months ago
Wavelet synopses with error guarantees
Recent work has demonstrated the effectiveness of the wavelet decomposition in reducing large amounts of data to compact sets of wavelet coefficients (termed "wavelet synopse...
Minos N. Garofalakis, Phillip B. Gibbons
SIGMOD
2001
ACM
108views Database» more  SIGMOD 2001»
14 years 10 months ago
PREFER: A System for the Efficient Execution of Multi-parametric Ranked Queries
Users often need to optimize the selection of objects by appropriately weighting the importance of multiple object attributes. Such optimization problems appear often in operation...
Vagelis Hristidis, Nick Koudas, Yannis Papakonstan...
MOBISYS
2007
ACM
14 years 9 months ago
SmokeScreen: flexible privacy controls for presence-sharing
Presence-sharing is an emerging platform for mobile applications, but presence-privacy remains a challenge. Privacy controls must be flexible enough to allow sharing between both ...
Landon P. Cox, Angela Dalton, Varun Marupadi
MOBIHOC
2002
ACM
14 years 9 months ago
On using the ad-hoc network model in cellular packet data networks
While several approaches have been proposed in literature for improving the performance of wireless packet data networks, a recent class of approaches has focused on improving the...
Hung-Yun Hsieh, Raghupathy Sivakumar
WSDM
2010
ACM
166views Data Mining» more  WSDM 2010»
14 years 7 months ago
Ranking Mechanisms in Twitter-Like Forums
We study the problem of designing a mechanism to rank items in forums by making use of the user reviews such as thumb and star ratings. We compare mechanisms where forum users rat...
Anish Das Sarma, Atish Das Sarma, Sreenivas Gollap...