Graph database retrieval based on metric-trees

  • Authors:
  • Francesc Serratosa;Xavier Cortés;Albert Solé-Ribalta

  • Affiliations:
  • Departament d'Enginyeria Informàtica i Matemàtiques, Universitat Rovira i Virgili, Spain;Departament d'Enginyeria Informàtica i Matemàtiques, Universitat Rovira i Virgili, Spain;Departament d'Enginyeria Informàtica i Matemàtiques, Universitat Rovira i Virgili, Spain

  • Venue:
  • SSPR'12/SPR'12 Proceedings of the 2012 Joint IAPR international conference on Structural, Syntactic, and Statistical Pattern Recognition
  • Year:
  • 2012

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Abstract

M-trees are well-know structures used to speed-up queries in databases. In this paper, we evaluate the applicability of m-trees to graph databases. In classical schemes based on metric-trees, the routing information kept in a metric-tree node is a selected element from the sub-cluster that represents. Nevertheless, defining a graph that represents a set of graphs is not a trivial task. We evaluate different graphs-class prototype as routing nodes in the metric tree. The considered prototypes are: Median Graphs, Closure Graphs, First-Order Random Graphs, Function-Described Graphs and Second-Order Random Graphs.