Tractable Reasoning and Efficient Query Answering in Description Logics: The DL-Lite Family
Journal of Automated Reasoning
RDFS Reasoning and Query Answering on Top of DHTs
ISWC '08 Proceedings of the 7th International Conference on The Semantic Web
Journal on data semantics VIII
Ontological queries: Rewriting and optimization
ICDE '11 Proceedings of the 2011 IEEE 27th International Conference on Data Engineering
QueryPIE: backward reasoning for OWL horst over very large knowledge bases
ISWC'11 Proceedings of the 10th international conference on The semantic web - Volume Part I
View selection in Semantic Web databases
Proceedings of the VLDB Endowment
| Hi-index | 0.00 |
We introduce the database fragment of RDF, which extends the popular Description Logic fragment, in particular with support for incomplete information. We then provide novel sound and complete saturation- and reformulation-based techniques for answering the Basic Graph Pattern queries of SPARQL in this fragment. Notably, we extend the state of the art on pushing RDF query processing within robust / efficient relational database management systems. Finally, we experimentally compare our query answering techniques using well-established datasets.