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hal-00707901, version 1

The Simplex Tree: An Efficient Data Structure for General Simplicial Complexes

Jean-Daniel Boissonnat () 1, Clément Maria (, www-sop.inria.fr/members/Clement.Maria/) 12

N° RR-7993 (2012)

Abstract: This paper introduces a new data structure, called simplex tree, to represent abstract simplicial complexes of any dimension. All faces of the simplicial complex are explicitly stored in a trie whose nodes are in bijection with the faces of the complex. This data structure allows to efficiently implement a large range of basic operations on simplicial complexes. We provide theoretical complexity analysis as well as detailed experimental results. We more specifically study Rips and witness complexes.

  • 1:  GEOMETRICA (INRIA Sophia Antipolis)
  • INRIA
  • 2:  Ecole Normale Supérieure de Cachan (ENS Cachan)
  • École normale supérieure de Cachan - ENS Cachan
  • Domain : Computer Science/Computational Geometry
  • Keywords : simplicial complexes – data structure – flag complexes – Rips complexes – witness complexes – relaxed witness complexes – high dimensions
  • Internal note : RR-7993
  • Available versions :  v1 (2012-06-15) v2 (2012-07-02)
 
  • hal-00707901, version 1
  • oai:hal.inria.fr:hal-00707901
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  • Submitted on: Thursday, 14 June 2012 16:51:45
  • Updated on: Friday, 22 June 2012 14:30:23