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Minsum k-sink problem on path networks
Theoretical Computer Science ( IF 1.1 ) Pub Date : 2019-07-19 , DOI: 10.1016/j.tcs.2019.05.047
Robert Benkoczi , Binay Bhattacharya , Yuya Higashikawa , Tsunehiko Kameda , Naoki Katoh

We consider the problem of locating a set of k sinks on a path network with general edge capacities that minimizes the sum of the evacuation times of all evacuees. We first present an O(knlog4n) time algorithm when the edge capacities are non-uniform, where n is the number of vertices. We then present an O(knlog3n) time algorithm when the edge capacities are uniform. We also present an O(nlogn) time algorithm for the special case where k=1 and the edge capacities are non-uniform.



中文翻译:

路径网络上的最小和-k汇问题

我们考虑的问题是,在具有一般边缘容量的路径网络上定位一组k个汇点,以最大程度地减少所有撤离人员的疏散时间之和。我们首先提出一个Øķñ日志4ñ边容量不均匀时的时间算法,其中n是顶点数。然后,我们提出一个Øķñ日志3ñ边缘容量均匀的时间算法。我们还提出了一个Øñ日志ñ 特殊情况下的时间算法 ķ=1个 并且边缘容量不均匀。

更新日期:2019-07-19
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