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- W4311565559 abstract "We initiate the work on maximin share (MMS) fair allocation of m indivisible chores to n agents using only their ordinal preferences, from both algorithmic and mechanism design perspectives. The previous best-known approximation is 2-1/n by Aziz et al. [IJCAI 2017]. We improve this result by giving a simple deterministic 5/3-approximation algorithm that determines an allocation sequence of agents, according to which items are allocated one by one. By a tighter analysis, we show that for n=2,3, our algorithm achieves better approximation ratios, and is actually optimal. We also consider the setting with strategic agents, where agents may misreport their preferences to manipulate the outcome. We first provide a O(log (m/n))-approximation consecutive picking algorithm, and then improve the approximation ratio to O(sqrt{log n}) by a randomized algorithm. Our results uncover some interesting contrasts between the approximation ratios achieved for chores versus goods." @default.
- W4311565559 created "2022-12-27" @default.
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- W4311565559 date "2020-12-27" @default.
- W4311565559 modified "2023-09-26" @default.
- W4311565559 title "Approximate and Strategyproof Maximin Share Allocation of Chores with Ordinal Preferences" @default.
- W4311565559 doi "https://doi.org/10.48550/arxiv.2012.13884" @default.
- W4311565559 hasPublicationYear "2020" @default.
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