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Complexity of Pebble Tree-Walking Automata

  • Mathias Samuelides
  • Luc Segoufin
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4639)

Abstract

We consider tree-walking automata using k pebbles. The pebbles are either strong (can be lifted from anywhere) or weak (can be lifted only when the automaton is on it). For each k, we give the precise complexities of the problems of emptiness and inclusion of tree-walking automata using k pebbles.

Keywords

Turing Machine Terminal State Expressive Power Current Node Inclusion Problem 
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 2007

Authors and Affiliations

  • Mathias Samuelides
    • 1
  • Luc Segoufin
    • 2
  1. 1.LIAFA, Paris 7 
  2. 2.INRIA, Paris 11 

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