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Coalgebraic Semantics of Heavy-Weighted Automata

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Recent Trends in Algebraic Development Techniques (WADT 2015)

Part of the book series: Lecture Notes in Computer Science ((LNTCS,volume 9463))

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Abstract

In this paper we study heavy-weighted automata, a generalization of weighted automata in which the weights of the transitions can be formal power series. As for ordinary weighted automata, the behaviour of heavy-weighted automata is expressed in terms of formal power series. We propose several equivalent definitions for their semantics, including a system of behavioural differential equations (following the approach of coinductive calculus), or an embedding into a coalgebra for the functor \(S\,\times \,(-)^A\), for which the set of formal power series is a final coalgebra. Using techniques based on bisimulations and coinductive calculus, we study how ordinary weighted automata can be transformed into more compact heavy-weighted ones.

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Author information

Authors and Affiliations

  1. École Normale Supérieure de Cachan, Cachan, France

    Marie Fortin

  2. LIACS – Leiden University, Leiden, The Netherlands

    Marcello M. Bonsangue

  3. Centrum Wiskunde & Informatica, Amsterdam, The Netherlands

    Marie Fortin, Marcello M. Bonsangue & Jan Rutten

  4. ICIS – Radboud University Nijmegen, Nijmegen, The Netherlands

    Jan Rutten

Authors
  1. Marie Fortin
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  2. Marcello M. Bonsangue
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  3. Jan Rutten
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Corresponding author

Correspondence to Marcello M. Bonsangue .

Editor information

Editors and Affiliations

  1. Otto-von-Guericke-Universität Magedeburg , Magdeburg, Germany

    Mihai Codescu

  2. Simion Stoilow Institute of Mathematics of the Romanian Academy, Bucharest, Romania

    Răzvan Diaconescu

  3. Royal Holloway University of London, Egham, UK

    Ionuț Țuțu

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Fortin, M., Bonsangue, M.M., Rutten, J. (2015). Coalgebraic Semantics of Heavy-Weighted Automata. In: Codescu, M., Diaconescu, R., Țuțu, I. (eds) Recent Trends in Algebraic Development Techniques. WADT 2015. Lecture Notes in Computer Science(), vol 9463. Springer, Cham. https://doi.org/10.1007/978-3-319-28114-8_4

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  • DOI: https://doi.org/10.1007/978-3-319-28114-8_4

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-28113-1

  • Online ISBN: 978-3-319-28114-8

  • eBook Packages: Computer ScienceComputer Science (R0)

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