Connectivity Graphs of Uncertainty Regions
Connectivity Graphs of Uncertainty Regions
复制标题
不确定区域的连通图
DOI:
10.1007/s00453-016-0191-2
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发表时间:
2016
期刊:
影响因子:
1.1
通讯作者:
Chambers E
中科院分区:
文献类型:
--
作者:
Chambers E
We study connectivity relations among points, where the precise location of each input point lies in a region of uncertainty. We distinguish two fundamental scenarios under which uncertainty arises. In the favorableBest-Case Uncertainty, each input point can be chosen from a given set to yield the best possible objective value. In the unfavorableWorst-Case Uncertainty, the input set has worst possible objective value among all possible point locations, which are uncertain due, for example, to imprecise data. We consider these notions of uncertainty for the bottleneck spanning tree problem, giving rise to the followingBest-Case Connectivity with Uncertaintyproblem: given a family of geometric regions, choose one point per region, such that the longest edge length of an associated geometric spanning tree is minimized. We show that this problem is NP-hard even for very simple scenarios in which the regions are line segments or squares. On the other hand, we give an exact solution for the case in which there areregions, wherekof the regions are line segments andnof the regions are fixed points. We then give approximation algorithms for cases where the regions are either all line segments or all unit discs. We also provide approximation methods for the correspondingWorst-Case Connectivity with Uncertaintyproblem: Given a set of uncertainty regions, find the minimal distancersuch that for any choice of points, one per region, there is a spanning tree among the points with edge length at mostr.
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DOI:
--
发表时间:
2015
期刊:
影响因子:
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作者:
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DOI:
10.1016/j.comgeo.2012.10.009
发表时间:
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期刊:
Comput. Geom.
影响因子:
--
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0.5
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DOI:
--
发表时间:
1995
期刊:
SCG '95
影响因子:
--
作者:
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通讯作者:
Joseph S. B. Mitchell
DOI:
10.1016/0012-365x(83)90128-0
发表时间:
1983
期刊:
Discret. Math.
影响因子:
--
作者:
P. Duchet;Y. O. Hamidoune;M. Vergnas;H. Meyniel
通讯作者:
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