Rule-based reasoning about qualitative spatiotemporal relations
Proceedings of the 5th international workshop on Middleware for pervasive and ad-hoc computing: held at the ACM/IFIP/USENIX 8th International Middleware Conference
Inferring and distributing spatial context
EuroSSC'07 Proceedings of the 2nd European conference on Smart sensing and context
A framework for utilizing qualitative spatial relations between networked embedded systems
Pervasive and Mobile Computing
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In this paper, we present an architecture for recognizing spatial relationships between real-world objects with integrated computing capabilities. The aim is to develop mechanisms for providing collectives of such artifacts with an awareness about spatial relations to other artifacts of the same collective. Therefore, an approach for recognizing binary relationships by a pairwise comparison of the spatial contexts of artifacts, as well as a novel algorithm which takes advantage of the relation properties in order to make all artifacts of the collective spatially-aware, are presented. The scope is on orientation- and distance-relationships, which are represented in a qualitative way. A general focus of this work is on the efficiency of the solutions with regard to their application in embedded systems. We expect the presented approach to be valuable for the interaction among artifacts and humans, as well as for acquiring high-level context information about artifact collectives.