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- 16 creator danica-damljanovic.
- 16 creator hamish-cunningham.
- 16 creator milan-agatonovic.
- 16 type InProceedings.
- 16 label "Natural Language Interface to Ontologies: combining syntactic analysis and ontology-based lookup through the user interaction".
- 16 sameAs 16.
- 16 abstract "With large datasets such as Linked Open Data available, there is a need for more user-friendly interfaces which will bring the advantages of these data closer to the casual users. Several recent studies have shown user preference to Natural Language Interfaces (NLIs) in comparison to others. Although many NLIs to ontologies have been developed, those that have reasonable performance are domain-specific and tend to require customisation for each new domain which, from a developer''s perspective, makes them expensive to maintain and unattractive for practical applications spanning different domains. In this paper we describe FREyA, a system which combines three methods used to assist the user while interacting with the system: feedback, query refinement, and query expansion. These are used in combination to explore whether the performance of existing NLI systems to ontologies can be improved without the extra cost of extensive customisation. We present an evaluation using Mooney geography dataset in order to compare our approach with other similar systems.".
- 16 hasAuthorList authorList.
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- 16 keyword "natural language interface".
- 16 keyword "ontology".
- 16 keyword "question-anwswering".
- 16 title "Natural Language Interface to Ontologies: combining syntactic analysis and ontology-based lookup through the user interaction".
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- item-1 hasContent danica-damljanovic.
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- 27 creator biswanath-dutta.
- 27 creator fausto-giunchiglia.
- 27 creator feroz-farazi.
- 27 creator vincenzo-maltese.
- 27 type InProceedings.
- 27 label "GeoWordNet: a resource for geo-spatial applications".
- 27 sameAs 27.
- 27 abstract "Geo-spatial ontologies provide knowledge about places in the world and spatial relations between them. They are fundamental in order to build semantic information retrieval systems and to achieve semantic interoperability in geo-spatial applications. In this paper we present GeoWordNet, a semantic resource we created from the full integration of GeoNames, other high quality resources and WordNet. The methodology we followed was largely automatic, with manual checks when needed. This allowed us accomplishing at the same time a never reached before accuracy level and a very satisfactory quantitative result, both in terms of concepts and geographical entities.".
- 27 hasAuthorList authorList.
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- 27 keyword "Geo-spatial ontologies".
- 27 keyword "WordNet".
- 27 title "GeoWordNet: a resource for geo-spatial applications".
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- item-1 hasContent fausto-giunchiglia.
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- 29 creator anna-tordai.
- 29 creator bob-wielinga.
- 29 creator guus-schreiber.
- 29 creator jacco-van-ossenbruggen.
- 29 type InProceedings.
- 29 label "Aligning Large SKOS-like Vocabularies: Two Case Studies".
- 29 sameAs 29.
- 29 abstract "In this paper we build on our methodology for combining and selecting alignment techniques for vocabularies, with two alignment case studies of large vocabularies in two languages. Firstly, we analyze the vocabularies and based on that analysis choose our alignment techniques. Secondly, we test our hypothesis based on earlier work that by first generating alignments using simple lexical alignment techniques, followed by a separate disambiguation of alignments performs best in terms of precision and recall. The experimental results show for example, that this combination of techniques provides an estimated precision of 0.7 for a sample of 12,725 concepts for which alignments were generated of the total 27,992 concepts. Thirdly, we explain our results in light of the characteristics of the vocabularies and discuss their impact on the alignments techniques.".
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- 29 keyword "case study".
- 29 keyword "cultural heritage".
- 29 keyword "methodology".
- 29 keyword "vocabulary alignment".
- 29 title "Aligning Large SKOS-like Vocabularies: Two Case Studies".
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