Testing Euclidean spanners

  • Authors:
  • Frank Hellweg;Melanie Schmidt;Christian Sohler

  • Affiliations:
  • Department of Computer Science, Technische Universität Dortmund;Department of Computer Science, Technische Universität Dortmund;Department of Computer Science, Technische Universität Dortmund

  • Venue:
  • ESA'10 Proceedings of the 18th annual European conference on Algorithms: Part I
  • Year:
  • 2010

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Abstract

We develop a property testing algorithm with query complexity Õ(δ-5dε-5Dlog6 Δ√n) that tests whether a directed geometric graph G = (P, E) with maximum degree D and vertex set P ⊆ {1, ..., Δ}d (for constant d) is a Euclidean (1 + δ)-spanner. Such a property testing algorithm accepts every (1 + δ)-spanner and rejects with high constant probability every graph that is ε-far from this property, i. e., every graph that differs in more than ε|P| edges from every (1 + δ)-spanner.