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» An algorithm for optimal difference systems of sets
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ICDE
2005
IEEE
113views Database» more  ICDE 2005»
16 years 5 months ago
On the Optimal Ordering of Maps and Selections under Factorization
The query optimizer of a database system is confronted with two aspects when handling user-defined functions (UDFs) in query predicates: the vast differences in evaluation costs b...
Thomas Neumann, Sven Helmer, Guido Moerkotte
160
Voted
HYBRID
2009
Springer
15 years 10 months ago
Convergence of Distributed WSN Algorithms: The Wake-Up Scattering Problem
In this paper, we analyze the problem of finding a periodic schedule for the wake-up times of a set of nodes in a Wireless Sensor Network that optimizes the coverage of the region...
Daniele Fontanelli, Luigi Palopoli, Roberto Passer...
ECRTS
1998
IEEE
15 years 8 months ago
Using exact feasibility tests for allocating real-time tasks in multiprocessor systems
This paper introduces improvements in partitioning schemes for multiprocessor real-time systems which allow higher processor utilization and enhanced schedulability by using exact...
Sergio Saez, Joan Vila i Carbó, Alfons Cres...
171
Voted
WIOPT
2010
IEEE
15 years 1 months ago
Optimizing power allocation in interference channels using D.C. programming
Abstract--Power allocation is a promising approach for optimizing the performance of mobile radio systems in interference channels. In the present paper, the non-convex objective f...
Hussein Al-Shatri, Tobias Weber
ICMCS
2009
IEEE
138views Multimedia» more  ICMCS 2009»
15 years 1 months ago
Multi-rate peer-to-peer video conferencing: A distributed approach using scalable coding
We consider multi-rate peer-to-peer multi-party conferencing applications, where different receivers in the same group can receive videos at different rates using, for example, sc...
Miroslav Ponec, Sudipta Sengupta, Minghua Chen, Ji...