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arXiv 2109.09182math.OC
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网络上动态质量输运的近似Wasserstein吸引流

Approximate Wasserstein Attraction Flows for Dynamic Mass Transport over Networks

Ferran Arqué, César A. Uribe, Carlos Ocampo-Martinez

摘要:

本文提出了一种求解网络上动态质量输运问题的Wasserstein吸引方法。在网络上的传输问题中,我们从一组节点上的分布开始,这些节点需要被“传输”到考虑网络拓扑的目标分布。我们利用问题的具体结构,其特征在于隐式梯度步骤的计算,并制定了基于离散流的方法。因此,我们提出的算法依赖于约束Wasserstein重心的迭代计算。我们展示了如何找到所提出的方法近似解的网络传输问题,考虑到网络的拓扑结构,通信信道的容量,和个人节点的能力。最后,我们展示了这种方法应用于大规模水运网络的性能。

英文摘要:

This paper presents a Wasserstein attraction approach for solving dynamic mass transport problems over networks. In the transport problem over networks, we start with a distribution over the set of nodes that needs to be "transported" to a target distribution accounting for the network topology. We exploit the specific structure of the problem, characterized by the computation of implicit gradient steps, and formulate an approach based on discretized flows. As a result, our proposed algorithm relies on the iterative computation of constrained Wasserstein barycenters. We show how the proposed method finds approximate solutions to the network transport problem, taking into account the topology of the network, the capacity of the communication channels, and the capacity of the individual nodes. Finally, we show the performance of this approach applied to large-scale water transportation networks.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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