Artificial Intelligence and Law

, Volume 20, Issue 1, pp 83–107 | Cite as

A legal case OWL ontology with an instantiation of Popov v. Hayashi

  • Adam WynerEmail author
  • Rinke Hoekstra


The paper provides an OWL ontology for legal cases with an instantiation of the legal case Popov v. Hayashi. The ontology makes explicit the conceptual knowledge of the legal case domain, supports reasoning about the domain, and can be used to annotate the text of cases, which in turn can be used to populate the ontology. A populated ontology is a case base which can be used for information retrieval, information extraction, and case based reasoning. The ontology contains not only elements for indexing the case (e.g. the parties, jurisdiction, and date), but as well elements used to reason to a decision such as argument schemes and the components input to the schemes. We use the Protégé ontology editor and knowledge acquisition system, current guidelines for ontology development, and tools for visual and linguistic presentation of the ontology.


Legal case Ontology OWL Case based reasoning 


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Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  1. 1.Department of Computer ScienceUniversity of LiverpoolLiverpoolUK
  2. 2.AI Department, Faculty of SciencesVrije UniversiteitAmsterdamThe Netherlands
  3. 3.Leibniz Center for Law, Faculty of LawUniversiteit van AmsterdamAmdsterdamThe Netherlands

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