Abstract. We present a formal system that models programmable abstractions for access control. Composite abstractions and patterns of arbitrary complexity are modeled as a configu...
Polygonal objects are characterized by the following well-known parameters: number of vertices, area, perimeter and so on. These parameters describe the data sets that are used in...
Thomas Brinkhoff, Hans-Peter Kriegel, Ralf Schneid...
Abstract--As the information flowing around in social networking systems is mainly related or can be attributed to their users, controlling access to such information by individual...
Abstract. In order to realise complex service-based applications on system platforms for context-aware ubiquitous computing environments, mobile processes have been introduced to s...
Christian P. Kunze, Sonja Zaplata, Mirwais Turjale...