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Practical querying of temporal data via OWL 2 QL and SQL: 2011

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dc.contributor.author Klarman, S
dc.date.accessioned 2014-04-10T12:53:46Z
dc.date.available 2014-04-10T12:53:46Z
dc.date.issued 2013-12
dc.identifier.citation Klarman, S. 2013. Practical querying of temporal data via OWL 2 QL and SQL: 2011. In: LPAR 19, Stellenbosch, December 2013 en_US
dc.identifier.issn http://www.cair.za.net/sites/default/files/outputs/KlaLPAR13short.pdf
dc.identifier.uri http://hdl.handle.net/10204/7320
dc.description LPAR 19, Stellenbosch, December 2013 en_US
dc.description.abstract We develop a practical approach to querying temporal data stored in temporal SQL:2011 databases through the semantic layer of OWL 2 QL ontologies. An interval-based temporal query language (TQL), which we propose for this task, is defined via naturally characterizable combinations of temporal logic with conjunctive queries. This foundation warrants well-defined semantics and formal properties of TQL querying. In particular, we show that under certain mild restrictions the data complexity of query answering remains in AC0, i.e., as in the usual, nontemporal case. On the practical side, TQL is tailored specifically to offer maximum expressivity while preserving the possibility of reusing standard first-order rewriting techniques and tools for OWL 2 QL. en_US
dc.language.iso en en_US
dc.publisher Center for Artificial Inteligence Research en_US
dc.relation.ispartofseries Workflow;12366
dc.subject Ontology-based data access en_US
dc.subject OBDA en_US
dc.subject Data storage en_US
dc.subject Ontologies en_US
dc.title Practical querying of temporal data via OWL 2 QL and SQL: 2011 en_US
dc.type Conference Presentation en_US
dc.identifier.apacitation Klarman, S. (2013). Practical querying of temporal data via OWL 2 QL and SQL: 2011. Center for Artificial Inteligence Research. http://hdl.handle.net/10204/7320 en_ZA
dc.identifier.chicagocitation Klarman, S. "Practical querying of temporal data via OWL 2 QL and SQL: 2011." (2013): http://hdl.handle.net/10204/7320 en_ZA
dc.identifier.vancouvercitation Klarman S, Practical querying of temporal data via OWL 2 QL and SQL: 2011; Center for Artificial Inteligence Research; 2013. http://hdl.handle.net/10204/7320 . en_ZA
dc.identifier.ris TY - Conference Presentation AU - Klarman, S AB - We develop a practical approach to querying temporal data stored in temporal SQL:2011 databases through the semantic layer of OWL 2 QL ontologies. An interval-based temporal query language (TQL), which we propose for this task, is defined via naturally characterizable combinations of temporal logic with conjunctive queries. This foundation warrants well-defined semantics and formal properties of TQL querying. In particular, we show that under certain mild restrictions the data complexity of query answering remains in AC0, i.e., as in the usual, nontemporal case. On the practical side, TQL is tailored specifically to offer maximum expressivity while preserving the possibility of reusing standard first-order rewriting techniques and tools for OWL 2 QL. DA - 2013-12 DB - ResearchSpace DP - CSIR KW - Ontology-based data access KW - OBDA KW - Data storage KW - Ontologies LK - https://researchspace.csir.co.za PY - 2013 SM - http://www.cair.za.net/sites/default/files/outputs/KlaLPAR13short.pdf T1 - Practical querying of temporal data via OWL 2 QL and SQL: 2011 TI - Practical querying of temporal data via OWL 2 QL and SQL: 2011 UR - http://hdl.handle.net/10204/7320 ER - en_ZA


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