This report explains the details of a configurable index structure that allows to perform efficiently the kinds of filtering operations required to implement faceted search over RDF data. Unlike previous systems, it is ...

The concrete problem this paper addresses is the following: Given a set of objects with a spatial interpretation and a set of qualitative relations, construct a bintree representation that returns the same answers to queries ...

Refactoring is an essential operation in software engineering, with the purpose of improving the structural qualities of software. An emerging trend in software engineering is the use of model-driven approaches in which ...

In model-driven engineering approaches, models are considered firstclass entities. The composition of models is a necessity for modelling software systems. Structural composition of models has been studied thoroughly during ...

We present a representation of spatial data that supports answering of qualitative queries (involving e.g. containment and overlap), using less time than numerical computations on coordinates, and less space than explicitly ...

In this paper, we formalize an operational semantics of a weak memory model similar to the one in Go, concentrating on buffered writes, i.e., ignoring the possibility of buffered reads.

Less than Best Effort (LBE) transports are transport protocols that use spare bandwidth left by Best Effort (BE) transports to fulfill their own data transfer tasks. Such kind of protocols can be used by non-delay/bandwidth ...

In recent years, it has come to attention that governments have been doing mass surveillance of personal communications without the consent of the citizens. As a consequence of these revelations, developers have begun ...

In this research report we propose a self-organizing media streaming solution that supports multiple interacting participants as well as a large number of observers. This solution is aimed at a number of emerging multimedia ...