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A Hard Dial-a-Ride Problem that is Easy on Average

✍ Scribed by Amin Coja-Oghlan; Sven O. Krumke; Till Nierhoff


Publisher
Springer US
Year
2005
Tongue
English
Weight
138 KB
Volume
8
Category
Article
ISSN
1094-6136

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Three is easy, two is hard: open shop su
✍ Irina V. Gribkovskaia; Chung-Yee Lee; Vitaly A. Strusevich; Dominique de Werra πŸ“‚ Article πŸ“… 2006 πŸ› Elsevier Science 🌐 English βš– 151 KB

For the two-machine open shop sum-batch problem to minimize the makespan an optimal schedule is known to contain one, two or three batches on each machine, and finding a two-batch optimal schedule is NP-hard. We adapt the open shop algorithm by de Werra for finding a three-batch optimal schedule in