On upper bounds for the multiple knapsack assignment problem

Galli, Laura and Letchford, Adam (2024) On upper bounds for the multiple knapsack assignment problem. Operations Research Letters, 54: 107104. ISSN 0167-6377

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Abstract

The Multiple Knapsack Assignment Problem is a strongly NP-hard combinatorial optimisation problem, with several applications. We show that an upper bound for the problem, due to Kataoka and Yamada, can be computed in linear time. We then show that some bounds due to Martello and Monaci dominate the Kataoka-Yamada bound. Finally, we define an even stronger bound, which turns out to be particularly effective when the number of knapsacks is not a multiple of the number of item classes.