Interpreting Judgements using Knowledge Representation Methods and Computational Models of Argument

Ceci, Marcello (2013) Interpreting Judgements using Knowledge Representation Methods and Computational Models of Argument, [Dissertation thesis], Alma Mater Studiorum Università di Bologna. Dottorato di ricerca in Diritto e nuove tecnologie: indirizzo Informatica giuridica e diritto dell’informatica, 25 Ciclo. DOI 10.6092/unibo/amsdottorato/6106.
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The goal of the present research is to define a Semantic Web framework for precedent modelling, by using knowledge extracted from text, metadata, and rules, while maintaining a strong text-to-knowledge morphism between legal text and legal concepts, in order to fill the gap between legal document and its semantics. The framework is composed of four different models that make use of standard languages from the Semantic Web stack of technologies: a document metadata structure, modelling the main parts of a judgement, and creating a bridge between a text and its semantic annotations of legal concepts; a legal core ontology, modelling abstract legal concepts and institutions contained in a rule of law; a legal domain ontology, modelling the main legal concepts in a specific domain concerned by case-law; an argumentation system, modelling the structure of argumentation. The input to the framework includes metadata associated with judicial concepts, and an ontology library representing the structure of case-law. The research relies on the previous efforts of the community in the field of legal knowledge representation and rule interchange for applications in the legal domain, in order to apply the theory to a set of real legal documents, stressing the OWL axioms definitions as much as possible in order to enable them to provide a semantically powerful representation of the legal document and a solid ground for an argumentation system using a defeasible subset of predicate logics. It appears that some new features of OWL2 unlock useful reasoning features for legal knowledge, especially if combined with defeasible rules and argumentation schemes. The main task is thus to formalize legal concepts and argumentation patterns contained in a judgement, with the following requirement: to check, validate and reuse the discourse of a judge - and the argumentation he produces - as expressed by the judicial text.

Tipologia del documento
Tesi di dottorato
Ceci, Marcello
Dottorato di ricerca
Scuola di dottorato
Scienze giuridiche
Settore disciplinare
Settore concorsuale
Parole chiave
Legal reasoning, case-law, legal informatics, computational ontologies, logics, philosophy of law, XML, OWL, LegalRuleML, Hybrid reasoning.
Data di discussione
9 Settembre 2013

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