Geometric Minimum Spanning Trees via Well-Separated Pair Decompositions

  • Authors:
  • Giri Narasimhan;Martin Zachariasen

  • Affiliations:
  • University of Memphis;University of Copenhagen

  • Venue:
  • Journal of Experimental Algorithmics (JEA)
  • Year:
  • 2001

Quantified Score

Hi-index 0.01

Visualization

Abstract

Let S be a set of n points inℜd. We present an algorithm that uses thewell-separated pair decomposition and computes the minimum spanningtree of S under any Lp or polyhedralmetric. A theoretical analysis shows that it has an expectedrunning time of O(n log n) for uniform pointdistributions; this is verified experimentally. Extensiveexperimental results show that this approach is practical. Under avariety of input distributions, the resulting implementation isrobust and performs well for points in higher dimensionalspace.