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Title: Strategyproof facility location with limited locations
Author(s): Zhao, Yingchao 
Author(s): Tang, Z.-Z.
Wang, C.-H.
Zhang, M.-Q.
Issue Date: 2022
Publisher: Springer
Journal: Journal of the Operations Research Society of China 
We study the mechanism design of facility location problems. The problem is to design mechanisms to select a set of locations on which to build a set of facilities, aiming to optimize some system objective and achieve desirable properties based on the strategic agents’ locations. The agents might have incentives to misreport their private locations, in order to minimize the costs (i.e., the distance from the closest facility). We study the setting with limited locations, that is, the facilities can only be built on a given finite set of candidate locations, rather than the whole space. For locating a single facility and two facilities on a real line, we propose strategyproof mechanisms with tight approximation ratios, under the objectives of minimizing the total cost and the maximum cost. Further, we consider the problem of locating an obnoxious facility from which the agents want to stay as far away as possible, and derive tight bounds on the approximation ratio of strategyproof mechanisms.
DOI: 10.1007/s40305-021-00378-1
CIHE Affiliated Publication: Yes
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