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SIGECOM
2008
ACM
155views ECommerce» more  SIGECOM 2008»
13 years 8 months ago
Tight information-theoretic lower bounds for welfare maximization in combinatorial auctions
We provide tight information-theoretic lower bounds for the welfare maximization problem in combinatorial auctions. In this problem, the goal is to partition m items among k bidde...
Vahab S. Mirrokni, Michael Schapira, Jan Vondr&aac...
SIGIR
2008
ACM
13 years 8 months ago
A new probabilistic retrieval model based on the dirichlet compound multinomial distribution
The classical probabilistic models attempt to capture the Ad hoc information retrieval problem within a rigorous probabilistic framework. It has long been recognized that the prim...
Zuobing Xu, Ram Akella
SIGIR
2008
ACM
13 years 8 months ago
User adaptation: good results from poor systems
Several recent studies have found only a weak relationship between the performance of a retrieval system and the "success" achievable by human searchers. We hypothesize ...
Catherine L. Smith, Paul B. Kantor
IJCV
2007
155views more  IJCV 2007»
13 years 8 months ago
3D Reconstruction by Shadow Carving: Theory and Practical Evaluation
Abstract. Cast shadows are an informative cue to the shape of objects. They are particularly valuable for discovering object’s concavities which are not available from other cues...
Silvio Savarese, Marco Andreetto, Holly E. Rushmei...
SIGMETRICS
2008
ACM
161views Hardware» more  SIGMETRICS 2008»
13 years 8 months ago
Noncooperative power control and transmission scheduling in wireless collision channels
We consider a wireless collision channel, shared by a finite number of mobile users who transmit to a common base station using a random access protocol. Mobiles are selfoptimizin...
Ishai Menache, Nahum Shimkin
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