Search Results for author: Domenico Fabio Savo

Found 2 papers, 0 papers with code

CQE in Description Logics Through Instance Indistinguishability (extended version)

no code implementations24 Apr 2020 Gianluca Cima, Domenico Lembo, Riccardo Rosati, Domenico Fabio Savo

Finally, we identify a semantically well-founded notion of approximated query answering for CQE, and prove that, for DL-Lite$_{\mathcal{R}}$ ontologies, this form of CQE is tractable with respect to data complexity and is first-order rewritable, i. e., it is always reducible to the evaluation of a first-order query over the data instance.

Beyond OWL 2 QL in OBDA: Rewritings and Approximations (Extended Version)

no code implementations26 Nov 2015 Elena Botoeva, Diego Calvanese, Valerio Santarelli, Domenico Fabio Savo, Alessandro Solimando, Guohui Xiao

Ontology-based data access (OBDA) is a novel paradigm facilitating access to relational data, realized by linking data sources to an ontology by means of declarative mappings.

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