A PTAS for Bounded-Capacity Vehicle Routing in Planar Graphs
A PTAS for Bounded-Capacity Vehicle Routing in Planar Graphs
复制标题
平面图中有限容量车辆路径的 PTAS
DOI:
10.1007/978-3-030-24766-9_8
复制
发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Schild, Aaron
中科院分区:
文献类型:
--
作者:
Becker, Amariah;Klein, Philip N;Schild, Aaron
TheCapacitated Vehicle Routingproblem is to find a minimum-cost set of tours that collectively cover clients in a graph, such that each tour starts and ends at a specified depot and is subject to a capacity bound on the number of clients it can serve. In this paper, we present a polynomial-time approximation scheme (PTAS) for instances in which the input graph is planar and the capacity is bounded. Previously, only a quasipolynomial-time approximation scheme was known for these instances. To obtain this result, we show how to embed planar graphs into bounded-treewidth graphs while preserving, in expectation, the client-to-client distances up to a small additive error proportional to client distances to the depot.
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影响因子:
3.7
作者:
Amariah Becker;P. Klein;David Saulpic
通讯作者:
David Saulpic
影响因子:
3.7
作者:
Amariah Becker;P. Klein;David Saulpic
通讯作者:
David Saulpic
DOI:
10.1137/1.9781611975482.66
发表时间:
2019
期刊:
Proceedings of the Thirtieth Annual {ACM-SIAM} Symposium on Discrete Algorithms
影响因子:
--
作者:
Eli Fox-Epstein, Eli
Klein
通讯作者:
Eli Fox-Epstein, Eli
Klein
影响因子:
3.7
作者:
M. Khachay;R. Dubinin
通讯作者:
R. Dubinin
影响因子:
3.7
作者:
A. Feldmann;W. Fung;J. Könemann;Ian Post
通讯作者:
Ian Post