A Simple Randomized O(n log n)-Time Closest-Pair Algorithm in Doubling Metrics
A Simple Randomized O(n log n)-Time Closest-Pair Algorithm in Doubling Metrics
复制标题
倍增度量中的简单随机 O(n log n) 时间最近对算法
DOI:
10.20382/jocg.v11i1a20
复制
发表时间:
2020
期刊:
影响因子:
--
通讯作者:
M. Smid
中科院分区:
文献类型:
--
作者:
A. Maheshwari;Wolfgang Mulzer;M. Smid
Consider a metric space $(P,dist)$ with $N$ points whose doubling dimension is a constant. We present a simple, randomized, and recursive algorithm that computes, in $O(N \log N)$ expected time, the closest-pair distance in $P$. To generate recursive calls, we use previous results of Har-Peled and Mendel, and Abam and Har-Peled for computing a sparse annulus that separates the points in a balanced way.