Dynamic Weighted Matching with Heterogeneous Arrival and Departure Rates
Dynamic Weighted Matching with Heterogeneous Arrival and Departure Rates
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具有异构到达率和出发率的动态加权匹配
DOI:
10.1007/978-3-030-64946-3_2
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Newman, Neil
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文献类型:
--
作者:
Collina, Natalie;Immorlica, Nicole;Leyton-Brown, Kevin;Lucier, Brendan;Newman, Neil
We study a dynamic non-bipartite matching problem. There is a fixed set of agent types, and agents of a given type arrive and depart according to type-specific Poisson processes. The value of a match is determined by the types of the matched agents. We present an online algorithm that is (1/8)-competitive with respect to the value of the optimal-in-hindsight policy, for arbitrary weighted graphs. This is the first result to achieve a constant competitive ratio when both arrivals and departures are random and unannounced. Our algorithm treats agents heterogeneously, interpolating between immediate and delayed matching in order to thicken the market while still matching valuable agents opportunistically.
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