Research output: Contribution to journal › Article › peer-review
The Hierarchical Chinese Postman Problem: The slightest disorder makes it hard, yet disconnectedness is manageable. / Afanasev, Vsevolod A.; van Bevern, René; Tsidulko, Oxana Yu.
In: Operations Research Letters, Vol. 49, No. 2, 03.2021, p. 270-277.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - The Hierarchical Chinese Postman Problem: The slightest disorder makes it hard, yet disconnectedness is manageable
AU - Afanasev, Vsevolod A.
AU - van Bevern, René
AU - Tsidulko, Oxana Yu
N1 - Funding Information: This work is funded by Mathematical Center in Akademgorodok, agreement No. 075-15-2019-1675 with the Ministry of Science and Higher Education of the Russian Federation . Publisher Copyright: © 2021 Elsevier B.V. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/3
Y1 - 2021/3
N2 - The Hierarchical Chinese Postman Problem is finding a shortest traversal of all edges of a graph respecting precedence constraints given by a partial order on classes of edges. We show that the special case with connected classes is NP-hard even on orders decomposable into a chain and an incomparable class. For the case with linearly ordered (possibly disconnected) classes, we get 5/3-approximations and fixed-parameter algorithms by transferring results from the Rural Postman Problem.
AB - The Hierarchical Chinese Postman Problem is finding a shortest traversal of all edges of a graph respecting precedence constraints given by a partial order on classes of edges. We show that the special case with connected classes is NP-hard even on orders decomposable into a chain and an incomparable class. For the case with linearly ordered (possibly disconnected) classes, we get 5/3-approximations and fixed-parameter algorithms by transferring results from the Rural Postman Problem.
KW - Approximation algorithm
KW - Arc routing
KW - Fixed-parameter algorithm
KW - NP-hardness
KW - Rural Postman Problem
KW - Temporal graphs
UR - http://www.scopus.com/inward/record.url?scp=85100767856&partnerID=8YFLogxK
U2 - 10.1016/j.orl.2021.01.017
DO - 10.1016/j.orl.2021.01.017
M3 - Article
AN - SCOPUS:85100767856
VL - 49
SP - 270
EP - 277
JO - Operations Research Letters
JF - Operations Research Letters
SN - 0167-6377
IS - 2
ER -
ID: 27877056