Approximation algorithms for constructing spanning K-trees using stock pieces of bounded length
Approximation algorithms for constructing spanning K-trees using stock pieces of bounded length
复制标题
使用有界长度的库存片段构造生成 K 树的近似算法
DOI:
10.1007/s11590-016-1078-5
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发表时间:
2016-09
影响因子:
1.6
通讯作者:
Ko-Wei Lih
中科院分区:
文献类型:
--
作者:
Junran Lichen;Jianping Li;Ko-Wei Lih
Given a weighted graphGonvertices, aspanning K-treeofGis defined to be a spanning treeTofGtogether withKdistinct edges ofGthat are not edges ofT. The objective of the minimum-cost spanningK-tree problem is to choose a subset of edges to form a spanningK-tree with the minimum weight. In this paper, we considerthe constructing spanning K-tree problemthat is a generalization of the minimum-cost spanningK-tree problem. We are required to construct a spanningK-treewhoseedges are assembled from some stock pieces of bounded lengthL. Letbe the sale price of each stock piece of lengthLandthe number of minimum stock pieces to construct theedges in. For each edgeeinG, letc(e) be the construction cost of that edgee. Our new objective is to minimize the total cost of constructing a spanningK-tree, i.e.,. The main results obtained in this paper are as follows. (1) A 2-approximation algorithm to solve the constructing spanningK-tree problem. (2) A-approximation algorithm to solve the special case for constant construction cost of edges. (3) An APTAS for this special case.
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DOI:
10.1287/ijoc.5.4.426
发表时间:
1993-11
期刊:
INFORMS J. Comput.
影响因子:
--
作者:
M. Fischetti;P. Toth
通讯作者:
M. Fischetti;P. Toth
DOI:
10.1007/978-0-387-30162-4_28
发表时间:
2021-08
期刊:
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影响因子:
--
作者:
通讯作者:
--
影响因子:
3.7
作者:
C. Berge;A. Ghouila-Houri;M. Merrington;C. Ramanujacharyulu
通讯作者:
C. Berge;A. Ghouila-Houri;M. Merrington;C. Ramanujacharyulu
DOI:
10.1093/comjnl/9.2.166
发表时间:
1966-08
期刊:
The Computer Journal
影响因子:
--
作者:
K. Haley
通讯作者:
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DOI:
10.1109/cdc.1977.271650
发表时间:
1977-12
期刊:
1977 IEEE Conference on Decision and Control including the 16th Symposium on Adaptive Processes and A Special Symposium on Fuzzy Set Theory and Applications
影响因子:
--
作者:
Edwin Roberts
通讯作者:
Edwin Roberts