Information systems often require combining datasets available in different formats, and geographical information systems are no exception. While semantic technologies have been u...
This paper promotes social role awareness as a desirable capability of animated agents, that are by now strong affective reasoners, but otherwise often lack the social competence ...
The notion of time granularity comes into play in a variety of problems involving time representation and management in database applications, including temporal database design, t...
We prove that several problems concerning congruences on algebras are complete for nondeterministic log-space. These problems are: determining the congruence on a given algebra gen...
Rewriting is a computational paradigm that specifies the actions, but not the control. We introduce a hierarchical structure repreat a high level of abstraction, a form of control....