Situation Awareness

  • A core situation awareness ontology unifies concepts, such as Situation, Object, and Relation from various domains.
  • Domain-specific ontologies, like a traffic situation awarenss ontology, extend the core situation awareness ontology to provide representations for heterogeneous data sources.
  • Well-known calculi, such as Region Connection Calculus (RCC), Oriented Point Relations Algebra, Allen's Time Intervals Algebra, Freksa's Temporal Semi-Intervals, extend the core situation awareness ontology to provide qualitative spatio-temporal relations.
  • Situation types describing relevant situations are defined on basis of objects and relations.
  • The notion of neighborhood of relations, generalized to neighborhood of situations enables reasoning about similarity and evolution of situations.
  • Reasoning shortcuts foster efficient situation assessment by exploiting meta-information about relations.

Situation awareness ontologies together with an instantiated situation and its corresponding situation type definition.

 

Action Awareness

  • A core action awareness ontology is integrated with the core situation awareness ontology.
  • Domain-specific ontologies extend the core action awareness ontology to describe actions of particular domains, and to describe how actions influence likelihoods of transitions between situations.
  • Actions influencing anticipated future situations are proposed early in time.
  • A priori knowledge of domain experts, as well as action impact analysis of past actions facilitate rojection of action impacts.

 

 

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