Abstract
The multiple knapsack problem (MKP) is a classical combinatorial optimization problem. A recent algorithm for some classes of the MKP is bin-completion, a bin-oriented, branch-and-bound algorithm. In this paper, we propose path-symmetry and path-dominance criteria for pruning nodes in the MKP branch-and-bound search space. In addition, we integrate the “bound-and-bound” upper bound validation technique used in previous MKP solvers. We show experimentally that our new MKP solver, which successfully integrates dominance based pruning, symmetry breaking, and bound-and-bound, significantly outperforms previous solvers on some classes of hard problem instances.
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Fukunaga, A.S. A branch-and-bound algorithm for hard multiple knapsack problems. Ann Oper Res 184, 97–119 (2011). https://doi.org/10.1007/s10479-009-0660-y
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DOI: https://doi.org/10.1007/s10479-009-0660-y