1. Semion: a smart triplification tool Andrea Giovanni Nuzzolese (1) andrea.nuzzolese@istc.cnr.it Aldo Gangemi (1) aldo.gangemi@cnr.it Valentina Presutti (1) valentina.presutti@cnr.it Paolo Ciancarini (1,2) ciancarini@cs.unibo.it Reengineering of non-RDF data sources without fixing assumptions on the domain semantics Reengineering of non-RDF data sources without fixing assumptions on the domain semantics Objective: organize knowledge from structurd data sources using ontology design patterns [3, 4] Refactoring of the reengineered RDF triples to LMM Refactoring of the reengineered RDF triples to LMM Reengineering of a legacy (non-RDF) data source to RDF triples Reengineering of a legacy (non-RDF) data source to RDF triples (1)Semantic Technology Laboratory ISTC-CNR (2)Dipartimento di Scienze dell’Informazione, Università di Bologna (1)Semantic Technology Laboratory ISTC-CNR (2)Dipartimento di Scienze dell’Informazione, Università di Bologna The Web of Data is fed by “triplifiers”, tools able to transform content to Linked Data [1] Triplifiers implement various methods typically based on bulk recipes which allow for no or limited customization of the process The transformation relies on predetermined implicit assumptions on the domain semantics of the non-RDF data source Lack of good practices for knowledge representation and organization Refactoring of RDF triples first in terms of a mediator ontology (i.e. LMM [2]), then in terms of formal semantics and logics LMM allows a semiotic cognitive representation of knowledge based on the so-called semiotic triangle LMM allows a semiotic cognitive representation of knowledge based on the so-called semiotic triangle Semion stand-alone tool: reengineering perspective Semion stand-alone tool: reengineering perspective 1.C. Bizer, T. Heath, and T. Berners-Lee. Linked Data - The Story So Far. Int. J. Semantic Web Inf. Syst., 5(3):1-22, 2009. 2.D. Picca, A. M. Gliozzo, and A. Gangemi. LMM: an OWL-DL MetaModel to Represent Heterogeneous Lexical Knowledge. In Proceedings of the Sixth International Language Resources and Evaluation (LREC'08), Marrakech, Morocco, May 2008. European Language Resources Association (ELRA). http://www.lrecconf.org/proceedings/lrec2008/. 3.V. Presutti and A. Gangemi. Content ontology design patterns as practical building blocks for web ontologies. In ER '08: Proceedings of the 27th International Conference on Conceptual Modeling, pages 128-141, Berlin, Heidelberg, 2008. Springer-Verlag. 4.A. Gangemi and V. Presutti. Ontology Design Pattern portal. Available at: http://www.ontologydesign-patterns.org, 2008. 5.Interactive Knowledge Stack project. A semantics-based Open Source Platform for Small to Medium CMS Provider. Available at: http://www.iks-project.eu/ 6.A. Adamou, E. Blomqvist, C. E. Bonafede, E. Daga, A. G. Nuzzolese and V. Presutti. Knowledge Representation and Reasoning System (KReS) - Alpha Version Report. Technical report, IKS Consortium, 2010. 1.C. Bizer, T. Heath, and T. Berners-Lee. Linked Data - The Story So Far. Int. J. Semantic Web Inf. Syst., 5(3):1-22, 2009. 2.D. Picca, A. M. Gliozzo, and A. Gangemi. LMM: an OWL-DL MetaModel to Represent Heterogeneous Lexical Knowledge. In Proceedings of the Sixth International Language Resources and Evaluation (LREC'08), Marrakech, Morocco, May 2008. European Language Resources Association (ELRA). http://www.lrecconf.org/proceedings/lrec2008/. 3.V. Presutti and A. Gangemi. Content ontology design patterns as practical building blocks for web ontologies. In ER '08: Proceedings of the 27th International Conference on Conceptual Modeling, pages 128-141, Berlin, Heidelberg, 2008. Springer-Verlag. 4.A. Gangemi and V. Presutti. Ontology Design Pattern portal. Available at: http://www.ontologydesign-patterns.org, 2008. 5.Interactive Knowledge Stack project. A semantics-based Open Source Platform for Small to Medium CMS Provider. Available at: http://www.iks-project.eu/ 6.A. Adamou, E. Blomqvist, C. E. Bonafede, E. Daga, A. G. Nuzzolese and V. Presutti. Knowledge Representation and Reasoning System (KReS) - Alpha Version Report. Technical report, IKS Consortium, 2010. Semion as part of KReS [6], the Knowledge and Reasoning System of the IKS [5] project. Semion as part of KReS [6], the Knowledge and Reasoning System of the IKS [5] project. Semion web interface: refactoring perspective Semion web interface: refactoring perspective