Résumés
Abstract
We consider a special linear assignment problem where some tasks are grouped, and in each group the tasks are ‘disjunctive’ (in the sense that at most one of them could be performed). We show this problem NP-hard. Then we present and compare two alternative decomposition based algorithms on randomly generated instances.
Keywords:
- Assignment,
- Benders decomposition,
- Branch-and-Bound,
- heuristic,
- lagrangian decomposition
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