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Báo cáo khoa học: "An Open-Source Natural Language Generator"

We demonstrate an open-source natural language generation engine that produces descriptions of entities and classes in English and Greek from OWL ontologies that have been annotated with linguistic and user modeling information expressed in RDF . We also demonstrate an accompanying plug-in for the Prot´ g´ ontology editor, e e which can be used to create the ontology’s annotations and generate previews of the resulting texts by invoking the generation engine. The engine has been embedded in robots acting as museum tour guides in the physical world and in Second Life; here we demonstrate the latter application. . | An Open-Source Natural Language Generator for OWL Ontologies and its Use in Protege and Second Life Dimitrios Galanis George Karakatsiotis Gerasimos Lampouras Ion Androutsopoulos Department of Informatics Athens University of Economics and Business Athens Greece Digital Curation Unit Research Centre Athena Athens Greece Abstract We demonstrate an open-source natural language generation engine that produces descriptions of entities and classes in English and Greek from OWL ontologies that have been annotated with linguistic and user modeling information expressed in RDF. We also demonstrate an accompanying plug-in for the Protege ontology editor which can be used to create the ontology s annotations and generate previews of the resulting texts by invoking the generation engine. The engine has been embedded in robots acting as museum tour guides in the physical world and in Second Life here we demonstrate the latter application. 1 Introduction NaturalowL Galanis and Androutsopoulos 2007 Androutsopoulos and Galanis 2008 is a natural language generation engine that produces descriptions of entitities e.g. items for sale museum exhibits and classes e.g. types of exhibits in English and Greek from OWL DL ontologies the ontologies must have been annotated with linguistic and user modeling annotations expressed in RDF.1 An accompanying plug-in for the well known Protege ontology editor is available which can be used to create the linguistic and user modeling annotations while editing an ontology as well as to generate previews of the resulting texts by invoking the generation engine.2 NaturalowL is based on ideas from ILEX O Donnell et al. 2001 and M-PIRO Isard et al. 2003 Androutsopoulos et al. 2007 but it uses 1See http www.w3.org TR owl-features for information on OWL and its versions. For information on RDF consult http www.w3.org RDF . 2M-PIRO s authoring tool Androutsopoulos et al. 2007 now called ELEON Bilidas et al. 2007 can also be used see http .