16 citations · 20 across the 4 of their papers we have counts for
4 papers · 1 filter
Controlled Query Evaluation through Epistemic Dependencies
Gianluca Cima, Domenico Lembo, Lorenzo Marconi +2
In this paper, we propose the use of epistemic dependencies to express data protection policies in Controlled Query Evaluation (CQE), which is a form of confidentiality-preserving…
CQE in Description Logics Through Instance Indistinguishability (extended version)
Gianluca Cima, Domenico Lembo, Riccardo Rosati +1
We study privacy-preserving query answering in Description Logics (DLs). Specifically, we consider the approach of controlled query evaluation (CQE) based on the notion of instance…
Beyond OWL 2 QL in OBDA: Rewritings and Approximations (Extended Version)
Elena Botoeva, Diego Calvanese, Valerio Santarelli +3
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. DL-L…
On the evolution of the instance level of DL-lite knowledge bases
Maurizio Lenzerini, Domenico Fabio Savo
Recent papers address the issue of updating the instance level of knowledge bases expressed in Description Logic following a model-based approach. One of the outcomes of these pape…