Indexing the edges—a simple and yet efficient approach to high-dimensional indexing

  • Authors:
  • Beng Chin Ooi;Kian-Lee Tan;Cui Yu;Stephane Bressan

  • Affiliations:
  • Department of Computer Science, National University of Singapore, 3 Science Drive 2, Singapore 117543;Department of Computer Science, National University of Singapore, 3 Science Drive 2, Singapore 117543;Department of Computer Science, National University of Singapore, 3 Science Drive 2, Singapore 117543;Department of Computer Science, National University of Singapore, 3 Science Drive 2, Singapore 117543

  • Venue:
  • PODS '00 Proceedings of the nineteenth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
  • Year:
  • 2000

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Abstract

In this paper, we propose a new tunable index scheme, called iMinMax(&Ogr;), that maps points in high dimensional spaces to single dimension values determined by their maximum or minimum values among all dimensions. By varying the tuning “knob” &Ogr;, we can obtain different family of iMinMax structures that are optimized for different distributions of data sets. For a d-dimensional space, a range query need to be transformed into d subqueries. However, some of these subqueries can be pruned away without evaluation, further enhancing the efficiency of the scheme. Experimental results show that iMinMax(&Ogr;) can outperform the more complex Pyramid technique by a wide margin.