Many applications refer to moving objects or phenomena and require spatio-temporal modelling and specific analysis. Unlike conventional data where attributes are simple values (nu...
On a high level of abstraction a Web Information System (WIS) can be described by a storyboard, which stract way specifies who will be using the system, in which way and for which...
In a range-aggegate query problem we wish to preprocess a set S of geometric objects such that given a query orthogonal range q, a certain intersection or proximity query on the o...
: Support for work practice is better conceptualised as support for activity taking place in a multidimensional space than as prescription of temporal task sequences. The notion of...
- We describe a Web 3.0 interaction system where the mobile user scenario is combined with a touchscreenbased collaborative terminal. Multiple users should be able to easily organi...