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SIGECOM
2008
ACM
155views ECommerce» more  SIGECOM 2008»
15 years 1 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...
PODS
2010
ACM
215views Database» more  PODS 2010»
15 years 7 months ago
An optimal algorithm for the distinct elements problem
We give the first optimal algorithm for estimating the number of distinct elements in a data stream, closing a long line of theoretical research on this problem begun by Flajolet...
Daniel M. Kane, Jelani Nelson, David P. Woodruff
CN
2007
133views more  CN 2007»
15 years 1 months ago
Automatic high-performance reconstruction and recovery
Self-protecting systems require the ability to instantaneously detect malicious activity at run-time and prevent execution. We argue that it is impossible to perfectly self-protec...
Ashvin Goel, Wu-chang Feng, Wu-chi Feng, David Mai...
SIGMOD
2004
ACM
92views Database» more  SIGMOD 2004»
16 years 2 months ago
The Price of Validity in Dynamic Networks
Massive-scale self-administered networks like Peer-to-Peer and Sensor Networks have data distributed across thousands of participant hosts. These networks are highly dynamic with ...
Mayank Bawa, Aristides Gionis, Hector Garcia-Molin...
ICLP
2010
Springer
15 years 5 months ago
Dedicated Tabling for a Probabilistic Setting
ProbLog is a probabilistic framework that extends Prolog with probabilistic facts. To compute the probability of a query, the complete SLD proof tree of the query is collected as a...
Theofrastos Mantadelis, Gerda Janssens