N. Baumgartner and W. Retschitzegger (Austria)
Ontologies, intelligent agents, situation awareness, context
Situation awareness enables an intelligent agent to deter
mine the meaning of perceived information in highly dy
namic environments and to share the thereby discovered
knowledge. Recently, ontology-based approaches to situ
ation awareness have been proposed; some of them facil
itate upper ontologies in order to provide a common vo
cabulary for collaborating agents and information sources.
This paper proposes an evaluation framework for such up
per ontologies to elaborate missing features and to develop
a better understanding of the diverse concepts involved.
To demonstrate the applicability of the evaluation frame
work, four upper ontologies providing concepts for situa
tion awareness are compared. The ﬁndings from this com
parison indicate common as well as mutual weaknesses of
the examined approaches.