The Collaborative Process-Centered Environment project (CPCE) aims at applying process modeling approach and technology to a given class of collaborative applications. The challeng...
Abstract. In this paper we describe a framework for defining and operationalizing conceptual models of distributed knowledge-based systems which extends published approaches by the...
Aspect-based relevance learning is a relevance feedback scheme based on a natural model of relevance in terms of image aspects. In this paper we propose a number of active learning...
We present the first efficient group signature scheme that is provably secure without random oracles. We achieve this result by combining provably secure hierarchical signatures i...
This paper examines the asymptotic behavior of solutions of a simple network model using feedback control under the presence of delays. It shows numerically the existence of compl...