Semantic Search: Reconciling Expressive Querying and Exploratory Search

Sébastien Ferré 1, * Alice Hermann 1
* Auteur correspondant
1 LIS - Logical Information Systems
IRISA-D7 - GESTION DES DONNÉES ET DE LA CONNAISSANCE
Abstract : Faceted search and querying are two well-known paradigms to search the Semantic Web. Querying languages, such as SPARQL, offer expressive means for searching RDF datasets, but they are difficult to use. Query assistants help users to write well-formed queries, but they do not prevent empty results. Faceted search supports exploratory search, i.e., guided navigation that returns rich feedbacks to users, and prevents them to fall in dead-ends (empty results). However, faceted search systems do not offer the same expressiveness as query languages. We introduce Query-based Faceted Search (QFS), the combination of an expressive query language and faceted search, to reconcile the two paradigms. In this paper, the LISQL query language generalizes existing semantic faceted search systems, and covers most features of SPARQL. A prototype, Sewelis (aka. Camelis 2), has been implemented, and a usability evaluation demonstrated that QFS retains the ease-of-use of faceted search, and enables users to build complex queries with little training.
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Communication dans un congrès
L. Aroyo and C. Welty. International Semantic Web Conference, Oct 2011, Bonn, Germany. Springer, 7031, pp.177-192, 2011, LNCS
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Sébastien Ferré, Alice Hermann. Semantic Search: Reconciling Expressive Querying and Exploratory Search. L. Aroyo and C. Welty. International Semantic Web Conference, Oct 2011, Bonn, Germany. Springer, 7031, pp.177-192, 2011, LNCS. 〈hal-00658302〉

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