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COMCOM
2006
120views more  COMCOM 2006»
14 years 10 months ago
Energy efficient routing and scheduling for real-time data aggregation in WSNs
In this paper, we study the problem of constructing an energy efficient data aggregation tree for data gathering in wireless sensor networks. We consider a real-time scenario wher...
Hongwei Du, Xiaodong Hu, Xiaohua Jia
MONET
2002
95views more  MONET 2002»
14 years 9 months ago
On Improving the Performance of Cache Invalidation in Mobile Environments
Many cache management schemes designed for mobile environments are based on invalidation reports (IRs). However, IR-based approach suffers from long query latency and it cannot eff...
Guohong Cao
RECOMB
2010
Springer
14 years 8 months ago
An Approximation Algorithm for Computing a Parsimonious First Speciation in the Gene Duplication Model
We consider the following problem: given a forest of gene family trees on a set of genomes, find a first speciation which splits these genomes into two subsets and minimizes the ...
Aïda Ouangraoua, Krister M. Swenson, Cedric C...
ESA
2005
Springer
145views Algorithms» more  ESA 2005»
15 years 3 months ago
Approximation Schemes for Minimum 2-Connected Spanning Subgraphs in Weighted Planar Graphs
Abstract. We present new approximation schemes for various classical problems of finding the minimum-weight spanning subgraph in edge-weighted undirected planar graphs that are re...
André Berger, Artur Czumaj, Michelangelo Gr...
ICRA
2000
IEEE
124views Robotics» more  ICRA 2000»
15 years 2 months ago
Local Search Heuristics for the Assembly Line Balancing Problem with Incompatibilities Between Tasks
This paper deals with the Assembly Line Balancing Problem considering incompatibilities between the tasks with the aim of, first, minimizing the number of workstations and, then, ...
Joaquín Bautista, Raúl Suárez...