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Recursive Expressions for SPARQL Property Paths

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ADBIS, TPDL and EDA 2020 Common Workshops and Doctoral Consortium (TPDL 2020, ADBIS 2020)

Part of the book series: Communications in Computer and Information Science ((CCIS,volume 1260))

Abstract

Regular expressions are used in SPARQL property paths to query RDF graphs. However, regular expressions can only define the most limited class of languages, called regular languages. Context-free languages are a wider class containing all regular languages. There are no context-free expressions to define them, so it is necessary to write grammars. We propose an extension of regular expressions, called recursive expressions, to support the definition of a subset of context-free languages. The goal of our work is therefore to provide simple operators allowing the definition of languages as close as possible to context-free languages.

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Notes

  1. 1.

    https://github.com/thobe/openCypher/blob/rpq/cip/1.accepted/CIP2017-02-06-Path-Patterns.adoc#153-compared-to-context-free-languages.

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Acknowledgements

This work is partly supported by INES grant CNPq/465614/2014-0 (Brazil) and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brazil (CAPES) - Finance Code 001.

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Authors and Affiliations

  1. Universidade Federal do Rio Grande do Norte, Natal, Brazil

    Ciro Medeiros, Umberto Costa & Martin A. Musicante

  2. Laboratoire d’Informatique Fondamentale d’Orléans, Orléans, France

    Ciro Medeiros

  3. Saint Petersburg State University, St. Petersburg, Russia

    Semyon Grigorev

  4. JetBrains Research, St. Petersburg, Russia

    Semyon Grigorev

Authors
  1. Ciro Medeiros
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  2. Umberto Costa
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  3. Semyon Grigorev
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  4. Martin A. Musicante
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Corresponding author

Correspondence to Ciro Medeiros .

Editor information

Editors and Affiliations

  1. ISAE-ENSMA, Poitiers, France

    Ladjel Bellatreche

  2. Slovak University of Technology, Bratislava, Slovakia

    Mária Bieliková

  3. Université Lumière Lyon 2, Lyon, France

    Omar Boussaïd

  4. University of Genova, Genova, Italy

    Barbara Catania

  5. Université Lumière Lyon 2, Lyon, France

    Jérôme Darmont

  6. Leibniz University of Hannover, Hannover, Niedersachsen, Germany

    Elena Demidova

  7. Université Claude Bernard Lyon 1, Lyon, France

    Fabien Duchateau

  8. The Open University, Milton Keynes, UK

    Mark Hall

  9. University of Ljubljana, Ljubljana, Slovenia

    Tanja Merčun

  10. National Research University Higher School of Economics, St. Petersburg, Russia

    Boris Novikov

  11. Ionian University, Corfu, Greece

    Christos Papatheodorou

  12. Goethe University Frankfurt, Frankfurt am Main, Hessen, Germany

    Thomas Risse

  13. Universitat Politècnica de Catalunya, Barcelona, Spain

    Oscar Romero

  14. AgroParisTech, Montpellier, France

    Lucile Sautot

  15. University of Lyon, Lyon, France

    Guilaine Talens

  16. Poznań University of Technology, Poznań, Poland

    Robert Wrembel

  17. University of Ljubljana, Ljubljana, Slovenia

    Maja Žumer

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Medeiros, C., Costa, U., Grigorev, S., Musicante, M.A. (2020). Recursive Expressions for SPARQL Property Paths. In: Bellatreche, L., et al. ADBIS, TPDL and EDA 2020 Common Workshops and Doctoral Consortium. TPDL ADBIS 2020 2020. Communications in Computer and Information Science, vol 1260. Springer, Cham. https://doi.org/10.1007/978-3-030-55814-7_6

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  • DOI: https://doi.org/10.1007/978-3-030-55814-7_6

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-55813-0

  • Online ISBN: 978-3-030-55814-7

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