FREyA: an interactive way of querying linked data using natural language

Authors:
Danica Damljanovic;Milan Agatonovic;Hamish Cunningham
Affiliations:
Department of Computer Science, University of Sheffield, Sheffield, UK;Fizzback, London, United Kingdom;Department of Computer Science, University of Sheffield, Sheffield, UK
Venue:
ESWC'11 Proceedings of the 8th international conference on The Semantic Web
Year:
2011

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Data & Knowledge Engineering

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Abstract

Natural Language Interfaces are increasingly relevant for information systems fronting rich structured data stores such as RDF and OWL repositories, mainly because of the conception of them being intuitive for human. In the previous work, we developed FREyA, an interactive Natural Language Interface for querying ontologies. It uses syntactic parsing in combination with the ontology-based lookup in order to interpret the question, and involves the user if necessary. The user's choices are used for training the system in order to improve its performance over time. In this paper, we discuss the suitability of FREyA to query the Linked Open Data. We report its performance in terms of precision and recall using the MusicBrainz and DBpedia datasets.