The vocabulary problem in human-system communication
Communications of the ACM
Deriving concept hierarchies from text
Proceedings of the 22nd annual international ACM SIGIR conference on Research and development in information retrieval
Improving the effectiveness of information retrieval with local context analysis
ACM Transactions on Information Systems (TOIS)
Sesame: A Generic Architecture for Storing and Querying RDF and RDF Schema
ISWC '02 Proceedings of the First International Semantic Web Conference on The Semantic Web
Are SKOS concept schemes ready for multilingual retrieval applications?
Proceedings of the 8th International Conference on Semantic Systems
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Within most domains of discourse, there exists different terminology used by distinct sub-groups. Often the terms used can be, or have already been, organised into controlled vocabularies which can be encoded into SKOS, a W3C standard for representing vocabularies. This terminology can then be used to help users to search for and discover resources. This requires a search mechanism to go from a user-supplied string to a vocabulary concept. In this paper, we discuss the issues encountered in developing a web service for searching and exploring the concepts in SKOS encoded astronomical vocabularies. Our prototype service takes in a query and responds with the concepts which are the "best match". It then supports the user in exploring the concepts' formal definition and alternative forms, as well as their relationship to other concepts. When we add mappings between the concepts in different vocabularies (where available), these further enrich the explorations of vocabulary concepts.