1 citations · 2 across the 2 of their papers we have counts for
3 papers
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…
QDEF and Its Approximations in OBDM
Gianluca Cima, Federico Croce, Maurizio Lenzerini
Given an input dataset (i.e., a set of tuples), query definability in Ontology-based Data Management (OBDM) amounts to find a query over the ontology whose certain answers coincide…
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…