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Linear Computation of the Maximum Simultaneous Forward and Backward Bisimulation for Node-Labeled Trees

  • Nils Grimsmo
  • Truls Amundsen Bjørklund
  • Magnus Lie Hetland
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6309)

Abstract

The F&B-index is used to speed up pattern matching in tree and graph data, and is based on the maximum F&B-bisimulation, which can be computed in loglinear time for graphs. It has been shown that the maximum F-bisimulation can be computed in linear time for DAGs. We build on this result, and introduce a linear algorithm for computing the maximum F&B-bisimulation for tree data. It first computes the maximum F-bisimulation, and then refines this to a maximal B-bisimulation. We prove that the result equals the maximum F&B-bisimulation.

Keywords

Linear Computation Twig Pattern Successor Rank Splitter Block Twig Query 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Nils Grimsmo
    • 1
  • Truls Amundsen Bjørklund
    • 1
  • Magnus Lie Hetland
    • 1
  1. 1.Norwegian University of Science and TechnologyNorway

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