Abstract
In this paper, we consider the robust facility location problem with penalties, aiming to serve only a specified fraction of the clients. We formulate this problem as an integer linear program to identify which clients must be served. Based on the corresponding LP relaxation and dual program, we propose a primal–dual (combinatorial) 3-approximation algorithm. Combining the greedy augmentation procedure, we further improve the above approximation ratio to 2.
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The second author’s research is supported by NSF of China (No. 11371001).
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A preliminary version of the paper appeared in Proceedings of the 2013 World Congress on Global Optimization, Yellow Mountain, Anhui, China, 2013.
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Wang, F., Xu, D. & Wu, C. Combinatorial approximation algorithms for the robust facility location problem with penalties. J Glob Optim 64, 483–496 (2016). https://doi.org/10.1007/s10898-014-0251-6
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DOI: https://doi.org/10.1007/s10898-014-0251-6