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» A PTAS for Minimizing the Total Weighted Completion Time on ...
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IPCO
1998
99views Optimization» more  IPCO 1998»
13 years 9 months ago
Non-approximability Results for Scheduling Problems with Minsum Criteria
We provide several non-approximability results for deterministic scheduling problems whose objective is to minimize the total job completion time. Unless P = NP, none of the probl...
Han Hoogeveen, Petra Schuurman, Gerhard J. Woeging...
COR
2006
96views more  COR 2006»
13 years 7 months ago
Scheduling two parallel machines with a single server: the general case
This paper considers the problem of scheduling two-operation non-preemptable jobs on two identical semiautomatic machines. A single server is available to carry out the first (or ...
Amir H. Abdekhodaee, Andrew Wirth, Heng-Soon Gan
COCOON
2005
Springer
14 years 1 months ago
On-Line Simultaneous Maximization of the Size and the Weight for Degradable Intervals Schedules
We consider the problem of scheduling on-line a sequence of degradable intervals in a set of k identical machines. Our objective is to find a schedule that maximizes simultaneousl...
Fabien Baille, Evripidis Bampis, Christian Lafores...
SIAMDM
2002
124views more  SIAMDM 2002»
13 years 7 months ago
Scheduling Unrelated Machines by Randomized Rounding
We present a new class of randomized approximation algorithms for unrelated parallel machine scheduling problems with the average weighted completion time objective. The key idea i...
Andreas S. Schulz, Martin Skutella
WAOA
2004
Springer
132views Algorithms» more  WAOA 2004»
14 years 26 days ago
Stochastic Online Scheduling on Parallel Machines
We consider a non-preemptive, stochastic parallel machine scheduling model with the goal to minimize the weighted completion times of jobs. In contrast to the classical stochastic ...
Nicole Megow, Marc Uetz, Tjark Vredeveld