We introduce the concept of a group principal and present a number of different classes of group principals, including threshold-group-principals. These appear to naturally usefu...
In some application domains as composite software, ranging from search engines, to more general applications, like cooperative and distributed applications or e-business and e-comm...
Recent works about the activity-oriented approach et educational modeling languages ask questions about the pedagogical scenario concept. The aim of this paper is to define the fo...
Visualization can be a powerful aid for learning a programming language. It may be used to reinforce central language concepts. In the context of Prolog and CLP-languages, however...
Ulrich Neumerkel, Christoph Rettig, Christian Scha...
This study explores language's fragmenting effect on usergenerated content by examining the diversity of knowledge representations across 25 different Wikipedia language edit...