Abstract
Systems supporting situation awareness in large-scale control systems, such as, e.g., encountered in the domain of road traffic management, pursue the vision of allowing human operators prevent critical situations. Recently, approaches have been proposed, which express situations, their constituting objects, and the relations in-between (e.g., road works causing a traffic jam), by means of domain-independent ontologies, allowing automatic prediction of future situations on basis of relation derivation. The resulting vast search space, however, could lead to unacceptable runtime performance and limited expressiveness of predictions. In this paper, we argue that both issues can be remedied by taking inherent characteristics of objects into account. For this, an ontology is proposed together with optimization rules, allowing to exploit such characteristics for optimizing predictions. A case study in the domain of road traffic management reveals that search space can be substantially reduced for many real-world situation evolutions, and thereby demonstrates the applicability of our approach.
This work has been funded by the Austrian Federal Ministry of Transport, Innovation and Technology (BMVIT) under grant FIT-IT 819577.
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Baumgartner, N., Gottesheim, W., Mitsch, S., Retschitzegger, W., Schwinger, W. (2009). On Optimization of Predictions in Ontology-Driven Situation Awareness. In: Karagiannis, D., Jin, Z. (eds) Knowledge Science, Engineering and Management. KSEM 2009. Lecture Notes in Computer Science(), vol 5914. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-10488-6_30
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DOI: https://doi.org/10.1007/978-3-642-10488-6_30
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