A simple framework for the generalized nearest neighbor problem

  • Authors:
  • Tomas Hruz;Marcel Schöngens

  • Affiliations:
  • Institute of Theoretical Computer Science, ETH Zurich, Switzerland;Institute of Theoretical Computer Science, ETH Zurich, Switzerland

  • Venue:
  • SWAT'12 Proceedings of the 13th Scandinavian conference on Algorithm Theory
  • Year:
  • 2012

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Abstract

The problem of finding a nearest neighbor from a set of points in ℝd to a complex query object has attracted considerable attention due to various applications in computational geometry, bio-informatics, information retrieval, etc. We propose a generic method that solves the problem for various classes of query objects and distance functions in a unified way. Moreover, for linear space requirements the method simplifies the known approach based on ray-shooting in the lower envelope of an arrangement.