A competitive strategy for distance-aware online shape allocation
A competitive strategy for distance-aware online shape allocation
复制标题
距离感知在线形状分配的竞争策略
DOI:
10.1016/j.tcs.2014.02.050
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
N. Schweer
中科院分区:
文献类型:
--
作者:
S.P. Fekete;J.-M. Reinhardt;N. Schweer
We consider the following online allocation problem: Given a unit square S, and a sequence of numbers n i∈[0, 1] with∑ j= 0 i n j⩽ 1; at each step i, select a region C i of previously unassigned area n i in S. The objective is to make these regions compact in a distance-aware sense: minimize the maximum (normalized) average Manhattan distance between points from the same set C i. Related location problems have received a considerable amount of attention; in particular, the problem of determining the “optimal shape of a city”, ie, allocating a single n i has been studied. We present an online strategy, based on an analysis of space-filling curves; for continuous shapes, we prove a factor of 1.8092, and 1.7848 for discrete point sets.
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