On the average performance of orthogonal range search in multidimensional data structures

  • Authors:
  • Amalia Duch;Conrado Martínez

  • Affiliations:
  • Laboratorio Nacional de Informática Avanzada (LANIA), Xalapa, Mexico;Departament de Llenguatges i Sistemes Informàtics, Universitat Politècnica de Catalunya, E-08034 Barcelona, Spain

  • Venue:
  • Journal of Algorithms - Analysis of algorithms
  • Year:
  • 2002

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Abstract

In this work we present the average-case analysis of orthogonal range search for several multidimensional data structures. We first consider random relaxed K-d trees as a prototypical example. Later we extend these results to many different multidimensional data structures. We show that the performance of range searches is related to the performance of a variant of partial matches using a mixture of geometric and combinatorial arguments. This reduction simplifies the analysis and allows us to give exact upper and lower bounds for the performance of range searches (Theorems 3 and 4) and a useful characterization of the cost of range search as a sum of the costs of partial match-like operations (Theorem 5). Using these results, we can get very precise asymptotic estimates for the expected cost of range searches (Theorem 6).