Optimal, Suboptimal, and Robust Algorithms for Proximity Graphs

  • Authors:
  • Ferrán Hurtado;Giuseppe Liotta;Henk Meijer

  • Affiliations:
  • -;-;-

  • Venue:
  • WADS '01 Proceedings of the 7th International Workshop on Algorithms and Data Structures
  • Year:
  • 2001

Quantified Score

Hi-index 0.01

Visualization

Abstract

Given a set of n points in the plane, any β-skeleton and [γ0, γ1] graph can be computed in quadratic time. The presented algorithms are optimal for β values that are less than 1 and [γ0, γ1] values that result in non-planar graphs. For β = 1, we show a numerically robust algorithm that computes Gabriel graphs in quadratic time and degree 2. We finally show how a β-spectrum can be computed in optimal O(n2) time.