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AOR
2007
107views more  AOR 2007»
15 years 5 months ago
Job Shop Scheduling with Unit Length Tasks: Bounds and Algorithms
We consider the job shop scheduling problem unit−Jm, where each job is processed once on each of m given machines. Every job consists of a permutation of tasks for all machines....
Juraj Hromkovic, Tobias Mömke, Kathleen Stein...
STOC
1996
ACM
132views Algorithms» more  STOC 1996»
15 years 10 months ago
Approximability and Nonapproximability Results for Minimizing Total Flow Time on a Single Machine
We consider the problem of scheduling n jobs that are released over time on a single machine in order to minimize the total ow time. This problem is well-known to be NPcomplete, a...
Hans Kellerer, Thomas Tautenhahn, Gerhard J. Woegi...
COR
2007
106views more  COR 2007»
15 years 5 months ago
Scheduling parallel CNC machines with time/cost trade-off considerations
When the processing times of jobs are controllable, selected processing times affect both the manufacturing cost and the scheduling performance.A well-known example for such a cas...
Sinan Gurel, M. Selim Akturk
COR
2006
96views more  COR 2006»
15 years 5 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
CONSTRAINTS
2007
93views more  CONSTRAINTS 2007»
15 years 5 months ago
Arc-B-consistency of the Inter-distance Constraint
We study the “inter-distance constraint”, also known as the global minimum distance constraint, that ensures that the distance between any pair of variables is at least equal ...
Konstantin Artiouchine, Philippe Baptiste