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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...
COCOON
2005
Springer
15 years 3 months ago
A PTAS for a Disc Covering Problem Using Width-Bounded Separators
In this paper, we study the following disc covering problem: Given a set of discs of various radii on the plane, find a subset of discs to maximize the area covered by exactly on...
Zhixiang Chen, Bin Fu, Yong Tang, Binhai Zhu
ICALP
2000
Springer
15 years 1 months ago
Parallel Machine Scheduling Problems with Controllable Processing Times
We consider the problem of scheduling n independent jobs on m identical machines that operate in parallel. Each job has a controllable processing time. The fact that the jobs have...
Klaus Jansen, Monaldo Mastrolilli
ESA
2008
Springer
153views Algorithms» more  ESA 2008»
14 years 11 months ago
A Constant-Approximate Feasibility Test for Multiprocessor Real-Time Scheduling
We devise the first constant-approximate feasibility test for sporadic multiprocessor real-time scheduling. We give an algorithm that, given a task system and > 0, correctly de...
Vincenzo Bonifaci, Alberto Marchetti-Spaccamela, S...
EOR
2006
120views more  EOR 2006»
14 years 10 months ago
Approximate and exact algorithms for the fixed-charge knapsack problem
The subject of this paper is the formulation and solution of a variation of the classical binary knapsack problem. The variation that is addressed is termed the ``fixed-charge kna...
Umit Akinc