Most existing RDF stores, which serve as metadata repositories on the Semantic Web, use
an RDBMS as a backend to manage RDF data. This motivates us to study the problem of …

A robot's ability to provide explanatory descriptions of its decisions and beliefs promotes
effective collaboration with humans. Providing the desired transparency in decision making …

Provenance metadata has become increasingly important to support scientific discovery
reproducibility, result interpretation, and problem diagnosis in scientific workflow …

Policy languages (such as privacy and rights) have had little impact on the wider community.
Now that social networks have taken off, the need to revisit policy languages and realign …

We have revisited and solved the problem of establishing lower bounds for the estimation of
deterministic parameters by means of a constrained optimization problem. We show that …

The Semantic Web aims at improving the current Web, by augmenting its content with
semantics and encouraging the cooperation among human users and machines. Since the …

Modern enterprises face an unprecedented regulatory regime. Industry governance, risk,
and compliance (GRC) solutions are document-oriented and expert-driven. Formal …

Industry governance, risk, and compliance (GRC) solutions stand to gain from various
analyses offered by formal compliance checking approaches. Such adoption is made …

We establish search algorithms from the area of propositional logic as invaluable tools for
the semantic knowledge acquisition in the conceptual database design phase. The …

This thesis explores the Semantic Web with relation to archaeology, and whether it is yet
possible for non-specialist archaeologists to create, use and share their data using Semantic …