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IPCO
2004
142views Optimization» more  IPCO 2004»
14 years 8 days ago
The Constrained Minimum Weighted Sum of Job Completion Times Problem
We consider the problem of minimizing the weighted sum of job completion times on a single machine (subject to certain job weights) with an additional side constraint on the weigh...
Asaf Levin, Gerhard J. Woeginger
ESA
2005
Springer
146views Algorithms» more  ESA 2005»
14 years 4 months ago
An Approximation Algorithm for the Minimum Latency Set Cover Problem
The input to the minimum latency set cover problem (MLSC) consists of a set of jobs and a set of tools. Each job j needs a specific subset Sj of the tools in order to be processed...
Refael Hassin, Asaf Levin
APPROX
2006
Springer
88views Algorithms» more  APPROX 2006»
14 years 2 months ago
Weighted Sum Coloring in Batch Scheduling of Conflicting Jobs
Motivated by applications in batch scheduling of jobs in manufacturing systems and distributed computing, we study two related problems. Given is a set of jobs {J1, . . . , Jn}, w...
Leah Epstein, Magnús M. Halldórsson,...
COCOON
2009
Springer
13 years 8 months ago
An FPTAS for the Minimum Total Weighted Tardiness Problem with a Fixed Number of Distinct Due Dates
Given a sequencing of jobs on a single machine, each one with a weight, processing time, and a due date, the tardiness of a job is the time needed for its completion beyond its du...
George Karakostas, Stavros G. Kolliopoulos, Jing W...
MOR
2000
90views more  MOR 2000»
13 years 10 months ago
A PTAS for Minimizing the Total Weighted Completion Time on Identical Parallel Machines
We consider the problem of scheduling a set of n jobs on m identical parallel machines so as to minimize the weighted sum of job completion times. This problem is NP-hard in the s...
Martin Skutella, Gerhard J. Woeginger