Modeling and Querying Greek Legislation Using Semantic Web Technologies

  • Ilias ChalkidisEmail author
  • Charalampos Nikolaou
  • Panagiotis Soursos
  • Manolis Koubarakis
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10249)


In this work, we study how legislation can be published as open data using semantic web technologies. We focus on Greek legislation and show how it can be modeled using ontologies expressed in OWL and RDF, and queried using SPARQL. To demonstrate the applicability and usefulness of our approach, we develop a web application, called Nomothesia, which makes Greek legislation easily accessible to the public. Nomothesia offers advanced services for retrieving and querying Greek legislation and is intended for citizens through intuitive presentational views and search interfaces, but also for application developers that would like to consume content through two web services: a SPARQL endpoint and a RESTful API. Opening up legislation in this way is a great leap towards making governments accountable to citizens and increasing transparency.


Legislative knowledge representation Linked Open Data Public services CEN MetaLex European Legislation Identifier 


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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Ilias Chalkidis
    • 1
    Email author
  • Charalampos Nikolaou
    • 2
  • Panagiotis Soursos
    • 1
  • Manolis Koubarakis
    • 1
  1. 1.Department of Informatics and TelecommunicationsNational and Kapodistrian University of AthensAthensGreece
  2. 2.Department of Computer ScienceUniversity of OxfordOxfordUK

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