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» On numbers of Davenport-Schinzel sequences
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PODS
2005
ACM
151views Database» more  PODS 2005»
16 years 6 months ago
Estimating arbitrary subset sums with few probes
Suppose we have a large table T of items i, each with a weight wi, e.g., people and their salary. In a general preprocessing step for estimating arbitrary subset sums, we assign e...
Noga Alon, Nick G. Duffield, Carsten Lund, Mikkel ...
MOBIHOC
2006
ACM
16 years 5 months ago
Topology control meets SINR: : the scheduling complexity of arbitrary topologies
To date, topology control in wireless ad hoc and sensor networks--the study of how to compute from the given communication network a subgraph with certain beneficial properties--h...
Thomas Moscibroda, Roger Wattenhofer, Aaron Zollin...
ICDT
2010
ACM
161views Database» more  ICDT 2010»
16 years 3 months ago
Composition with Target Constraints
It is known that the composition of schema mappings, each specified by source-to-target tgds (st-tgds), can be specified by a secondorder tgd (SO tgd). We consider the question of...
Marcelo Arenas, Ronald Fagin, Alan Nash
PAM
2010
Springer
16 years 1 months ago
Network DVR: A Programmable Framework for Application-Aware Trace Collection
Network traces are essential for a wide range of network applications, including traffic analysis, network measurement, performance monitoring, and security analysis. Existing cap...
Chia-Wei Chang, Alexandre Gerber, Bill Lin, Subhab...
SIGMOD
2009
ACM
161views Database» more  SIGMOD 2009»
16 years 1 months ago
Dependency-aware reordering for parallelizing query optimization in multi-core CPUs
The state of the art commercial query optimizers employ cost-based optimization and exploit dynamic programming (DP) to find the optimal query execution plan (QEP) without evalua...
Wook-Shin Han, Jinsoo Lee