An Accessible Approach to Behavioural Pseudometrics

With an Application to Probabilistic Systems
  • Franck van Breugel
  • Claudio Hermida
  • Michael Makkai
  • James Worrell
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3580)


Behavioural pseudometrics are a quantitative analogue of behavioural equivalences. They provide robust models for those concurrent systems in which quantitative data plays a crucial role. In this paper, we show how behavioural pseudometrics can be defined coalgebraically. Our results rely on the theory of accessible categories. We apply our results to obtain a robust model for probabilistic systems.


Distance Function Nonexpansive Function Complete Lattice Concurrent System Accessible Category 
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 2005

Authors and Affiliations

  • Franck van Breugel
    • 1
  • Claudio Hermida
    • 2
  • Michael Makkai
    • 3
  • James Worrell
    • 4
  1. 1.Department of Computer ScienceYork UniversityTorontoCanada
  2. 2.Department of MathematicsInstituto Superior TécnicoLisbonPortugal
  3. 3.Department of Mathematics and StatisticsMcGill UniversityMontrealCanada
  4. 4.Department of MathematicsTulane UniversityNew OrleansUSA

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