Abstract. Topological relationships between spatial objects in the twodimensional space have been investigated for a long time in a number of disciplines like artificial intellige...
Building on earlier attempts to characterise robot perception as a form of abduction, this paper presents a logical account of active visual perception in the context of an upper-...
This paper presents a case study about the implementation of the LIBERATOR project in the Portuguese region of Alentejo. Project LIBERATOR complies with the objectives of the Tele...
Among the main issues of future technology-enhanced learning systems, we can mention the following ones: the ability to reuse learning resources (learning objects, tools and servic...
This paper presents a new definition of context for contextaware computing based on a model that relies on dynamic queries over structured objects. This new model enables develop...
Kenneth M. Anderson, Frank Allan Hansen, Niels Olo...