Endowing Semantic Query Languages with Advanced Relaxation Capabilities

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• 作者：Géraud Fokou (22)
  Stéphane Jean (22)
  Allel Hadjali (22)
  
• 刊名：Lecture Notes in Computer Science
• 出版年：2014
• 出版时间：2014
• 年：2014
• 卷：8502
• 期：1
• 页码：512-517
• 参考文献：1. Dolog, P., Stuckenschmidt, H., Wache, H., Diederich, J.: Relaxing rdf queries based on user and domain preferences. IJIIS?33(3), 239-60 (2009)
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  3. Fokou, G., Jean, S., Hadjali, A.: Endowing Semantic Query Languages with Advanced Relaxation Capabilities. Technical Report 14618, fokou" class="a-plus-plus"> http://www.lias-lab.fr/members/geraudfokou
  4. Hogan, A., Mellotte, M., Powell, G., Stampouli, D.: Towards fuzzy query-relaxation for rdf. In: Simperl, E., Cimiano, P., Polleres, A., Corcho, O., Presutti, V. (eds.) ESWC 2012. LNCS, vol.?7295, pp. 687-02. Springer, Heidelberg (2012) CrossRef
  5. Dehainsala, H., Pierra, G., Bellatreche, L.: Ontodb: An ontology-based database for data intensive applications. In: Kotagiri, R., Radha Krishna, P., Mohania, M., Nantajeewarawat, E. (eds.) DASFAA 2007. LNCS, vol.?4443, pp. 497-08. Springer, Heidelberg (2007) CrossRef
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  7. Hurtado, C.A., Poulovassilis, A., Wood, P.T.: Query relaxation in RDF. In: Spaccapietra, S. (ed.) Journal on Data Semantics X. LNCS, vol.?4900, pp. 31-1. Springer, Heidelberg (2008) CrossRef
  8. Neumann, T., Weikum, G.: Rdf-3x: A risc-style engine for rdf. In: Proceedings of the 34th International Conference on VLDB (August 2008)
  9. Jean, S., Hadjali, A., Mars, A.: Towards a cooperative query language for semantic web database queries. In: Meersman, R., Panetto, H., Dillon, T., Eder, J., Bellahsene, Z., Ritter, N., De Leenheer, P., Dou, D. (eds.) OTM 2013. LNCS, vol.?8185, pp. 519-26. Springer, Heidelberg (2013)
  
• 作者单位：Géraud Fokou (22)
  Stéphane Jean (22)
  Allel Hadjali (22)
  
  22. LIAS/ENSMA-University of Poitiers, 1, Avenue Clement Ader, 86960, Futuroscope Cedex, France
  
• ISSN：1611-3349

文摘

Most of studies on relaxing Semantic Web Database ( \(\mathcal{S}\mathcal{W}\mathcal{D}\mathcal{B}\) ) queries focus on developing new relaxation techniques or on optimizing the top-k query processing. However, only few works have been conducted to provide a fine and declarative control of query relaxation using an \(\mathcal{S}\mathcal{W}\mathcal{D}\mathcal{B}\) query language. In this paper we first define a set of requirements for an \(\mathcal{S}\mathcal{W}\mathcal{D}\mathcal{B}\) cooperative query language( \(\mathcal{C}\mathcal{Q}\mathcal{L}\) ). Then, based on these requirements, we propose an extension of query language with a new clause to use and combine the relaxation operators we introduce. A similarity function is associated with these operators to rank the alternative answers retrieved.