The OntoNL Framework for Natural Language Interface Generation and a Domain-Specific Application

We present in this paper the design and implementation of the OntoNL Framework, a natural language interface generator for knowledge repositories, as well as a natural language system for interactions with multimedia repositories which was built using the OntoNL Framework. The system allows the user...

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Published inDigital Libraries: Research and Development pp. 228 - 237
Main Authors Karanastasi, Anastasia, Zotos, Alexandros, Christodoulakis, Stavros
Format Book Chapter
LanguageEnglish
Published Berlin, Heidelberg Springer Berlin Heidelberg
SeriesLecture Notes in Computer Science
Subjects
Natural language interfaces
ontologies
query representation
semantic relatedness
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Summary:We present in this paper the design and implementation of the OntoNL Framework, a natural language interface generator for knowledge repositories, as well as a natural language system for interactions with multimedia repositories which was built using the OntoNL Framework. The system allows the users to specify natural language requests about the multimedia content with rich semantics that result to digital content delivery. We propose and evaluate a semantic relatedness measure for OWL domain ontologies that concludes to the semantic ranking of ontological, grammatically-related structures. This procedure is used to disambiguate in a particular domain of context and represent in an ontology query language, natural language expressions. The ontology query language that we use is the SPARQL. The construction of the queries is automated and also dependent on the semantic relatedness measurement of ontology concepts. We also present the results of experimentation with the system.
ISBN:3540770879
9783540770879
ISSN:0302-9743
1611-3349
DOI:10.1007/978-3-540-77088-6_22