Towards a general theory of action and time
Artificial Intelligence
Naive physics I: ontology for liquids
Readings in qualitative reasoning about physical systems
The temporal logic of reactive and concurrent systems
The temporal logic of reactive and concurrent systems
Qualitative Spatio-Temporal Continuity
COSIT 2001 Proceedings of the International Conference on Spatial Information Theory: Foundations of Geographic Information Science
Commonsense spatial reasoning for context–aware pervasive systems
LoCA'05 Proceedings of the First international conference on Location- and Context-Awareness
A formal model for representing point trajectories in two-dimensional spaces
ER'05 Proceedings of the 24th international conference on Perspectives in Conceptual Modeling
Modeling consistency of spatio-temporal graphs
Data & Knowledge Engineering
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Although intensive work has been devoted to spatio-temporal qualitative reasoning models, some issues such as management of complex objects life and motion remain. In this paper, we propose a model dealing with existenceand presenceof object concepts. First, we introduce spatio-temporal states, which express existing spatio-temporal relationships between two objects at a given time. Spatio-temporal states decision tree is presented. Based on this new representation, we construct a finite set of life and motion configurationswhich can be seen as a way to categorise spatio-temporal histories.Then, we present the model itself which is based on 25 generalizedlife and motion configurations.Indeed, these generalized configurations are assimilated to line-line topological relationshipsobtained by projecting life and motion configurations in a primitive space. Finally, generalized life and motions configurations conceptual neighbourhood diagram and their interpretation in natural language are given.