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• W2565921978 abstract "Within the broad class of diversity/dispersion problems we find an important variant known as the Max–Mean Diversity Problem, which requires finding a subset of a given set of elements in order to maximize the quotient of the sum of all edges belonging to that subset and the cardinality of the subset. In this paper we develop a new application of general variable neighborhood search for solving this problem. Extensive computational results show that our new heuristic significantly outperforms the current state-of-the-art heuristic. Moreover, the best known solutions have been improved on 58 out of 60 large test instances from the literature. In other words, despite the simplicity of our method, which is a desirable property for any heuristic, we achieve significantly better results than a more complex heuristic that represents the state-of-the-art. Thus, simplicity can lead to more efficient and effective methods: when heuristics are used, less can be more." @default.
• W2565921978 created "2017-01-06" @default.
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• W2565921978 date "2017-03-01" @default.
• W2565921978 modified "2023-10-15" @default.
• W2565921978 title "Less is more: Solving the Max-Mean diversity problem with variable neighborhood search" @default.
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• W2565921978 doi "https://doi.org/10.1016/j.ins.2016.12.021" @default.
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