semion: a smart triplification tool andrea giovanni nuzzolese (1) [email protected] aldo...

Semion: a smart triplification tool Andrea Giovanni Nuzzolese (1) [email protected] r.it Aldo Gangemi (1) [email protected] Valentina Presutti (1) [email protected] t Paolo Ciancarini (1,2) [email protected] Mo ti va ti on Method Reengineering of non-RDF data sources without fixing assumptions on the domain semantics Objective: organize knowledg from structurd data sources using ontology design patterns [3, 4] Ex am pl e Tool Refactoring of the reengineered RDF triples to LMM 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 The Web of Data is fed y “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 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. emion as part of KReS [6], the Knowledge and Reasoning System of the IKS [5] project. Semion web interface: refactoring perspective

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Semion: a smart triplification toolAndrea Giovanni Nuzzolese (1)

[email protected] Gangemi (1)

[email protected] Presutti (1)

[email protected] Ciancarini (1,2)[email protected]

Motivation

Method

Reengineering of non-RDF data sources without fixing assumptions on the domain

semantics

Objective: organize knowledge from structurd data sources

using ontologydesign patterns [3, 4]

Example

Tool

Refactoring of the reengineered RDF triples to LMM

Reengineeringof a legacy (non-RDF)

data source to RDF triples

(1) Semantic Technology Laboratory ISTC-CNR(2) Dipartimento di Scienze dell’Informazione, Università di Bologna

The Web of Data is fedby “triplifiers”, tools able

to transform contentto Linked Data [1]

Triplifiers implementvarious methods typically based on bulk recipes which allow for

no or limited customizationof the process

The transformation relies on predetermined implicit assumptions

on the domain semantics of the non-RDF data source

Lack of good practices forknowledge 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 cognitiverepresentation of knowledge based

on the so-called semiotic triangle

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.

Semion as part of KReS [6], the Knowledge and Reasoning System

of the IKS [5] project.

Semion web interface: refactoring perspective

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