Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Constant-factor approximations for Capacitated Arc Routing without triangle inequality. / Van Bevern, René; Hartung, Sepp; Nichterlein, André и др.
в: Operations Research Letters, Том 42, № 4, 01.01.2014, стр. 290-292.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Constant-factor approximations for Capacitated Arc Routing without triangle inequality
AU - Van Bevern, René
AU - Hartung, Sepp
AU - Nichterlein, André
AU - Sorge, Manuel
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Given an undirected graph with edge costs and edge demands, the Capacitated Arc Routing problem (CARP) asks for minimum-cost routes for equal-capacity vehicles so as to satisfy all demands. Constant-factor polynomial-time approximation algorithms were proposed for CARP with triangle inequality, while CARP was claimed to be NP-hard to approximate within any constant factor in general. Correcting this claim, we show that any factor α approximation for CARP with triangle inequality yields a factor α approximation for the general CARP.
AB - Given an undirected graph with edge costs and edge demands, the Capacitated Arc Routing problem (CARP) asks for minimum-cost routes for equal-capacity vehicles so as to satisfy all demands. Constant-factor polynomial-time approximation algorithms were proposed for CARP with triangle inequality, while CARP was claimed to be NP-hard to approximate within any constant factor in general. Correcting this claim, we show that any factor α approximation for CARP with triangle inequality yields a factor α approximation for the general CARP.
KW - Chinese postman
KW - NP-hard problem
KW - Polynomial-time approximation
KW - Rural postman
KW - Vehicle routing
UR - http://www.scopus.com/inward/record.url?scp=84901655956&partnerID=8YFLogxK
U2 - 10.1016/j.orl.2014.05.002
DO - 10.1016/j.orl.2014.05.002
M3 - Article
AN - SCOPUS:84901655956
VL - 42
SP - 290
EP - 292
JO - Operations Research Letters
JF - Operations Research Letters
SN - 0167-6377
IS - 4
ER -
ID: 22340632