This paper presents an iterative and interactive information retrieval system to search on the web using formal concept analysis (FCA). FCA provides a natural way to organise objec...
Security policies are rules that constrain the behaviour of a system. Different, largely unrelated sets of rules typically govern the physical and logical worlds. However, increa...
Pieter H. Hartel, Pascal van Eck, Sandro Etalle, R...
Abstract. In this paper, we generalize the previous formal de nitions of random-self-reducibility. We show that, even under our very general de nition, sets that are complete for a...
Abstract--In distance teaching, direct feedback to the students is difficult to give, but crucial for their learning success. The system Asterix was developed in order to support t...
Manfred Widera, Barbara Messing, Gabriele Kern-Isb...
Abstract. Service-oriented systems have recently emerged as context-independent component-based systems. Unlike components, services can be created, invoked, composed, and destroye...
Aida Causevic, Cristina Cerschi Seceleanu, Paul Pe...