Abstract. We study the complexity of consistency checking and query answering on incomplete databases for languages ranging from non-recursive Datalog to disjunctive Datalog with n...
In this article, we introduce a new problem: the construction of multi-structured documents. We first offer an overview of existing solutions to the representation of such docum...
Software development is a knowledge-intensive activity and frequently implies a progressive crystallization of knowledge, towards programming language statements. Although wikis h...
Filipe Figueiredo Correia, Hugo Sereno Ferreira, N...
Abstract. Abstraction is essential in the formal specification of programs. A common way of writing abstract specifications is to specify implementations in terms of basic mathem...
PICNIC is a tool for verifying security properties of systems, namely non-interference properties of processes expressed as terms of the π-calculus with two security levels and d...