Effective solution of qualitative interval constraint problems
Artificial Intelligence
Journal of the ACM (JACM)
Qualitative representation of positional information
Artificial Intelligence
A new approach to cyclic ordering of 2D orientations using ternary relation algebras
Artificial Intelligence
Robot Motion Planning
Double-Crossing: Decidability and Computational Complexity of a Qualitative Calculus for Navigation
COSIT 2001 Proceedings of the International Conference on Spatial Information Theory: Foundations of Geographic Information Science
Qualitative Spatial Representation and Reasoning Techniques
KI '97 Proceedings of the 21st Annual German Conference on Artificial Intelligence: Advances in Artificial Intelligence
Using Orientation Information for Qualitative Spatial Reasoning
Proceedings of the International Conference GIS - From Space to Territory: Theories and Methods of Spatio-Temporal Reasoning on Theories and Methods of Spatio-Temporal Reasoning in Geographic Space
Acquisition of qualitative spatial representation by visual observation
IJCAI'99 Proceedings of the 16th international joint conference on Artificial intelligence - Volume 2
Qualitative and quantitative representations of locomotion and their application in robot navigation
IJCAI'99 Proceedings of the 16th international joint conference on Artificial intelligence - Volume 2
A logical account of causal and topological maps
IJCAI'01 Proceedings of the 17th international joint conference on Artificial intelligence - Volume 1
Projective relations for 3D space: computational model, application, and psychological evaluation
AAAI'97/IAAI'97 Proceedings of the fourteenth national conference on artificial intelligence and ninth conference on Innovative applications of artificial intelligence
On generalizing orientation information in OPRAm
KI'06 Proceedings of the 29th annual German conference on Artificial intelligence
Qualitative spatial representation and reasoning in the SparQ-toolbox
SC'06 Proceedings of the 2006 international conference on Spatial Cognition V: reasoning, action, interaction
The spatial and the visual in mental spatial reasoning: an ill-posed distinction
SC'06 Proceedings of the 2006 international conference on Spatial Cognition V: reasoning, action, interaction
Exploiting qualitative spatial constraints for multi-hypothesis topological map learning
COSIT'09 Proceedings of the 9th international conference on Spatial information theory
AICI'11 Proceedings of the Third international conference on Artificial intelligence and computational intelligence - Volume Part II
SC'04 Proceedings of the 4th international conference on Spatial Cognition: reasoning, Action, Interaction
Exploiting qualitative spatial neighborhoods in the situation calculus
SC'04 Proceedings of the 4th international conference on Spatial Cognition: reasoning, Action, Interaction
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Qualitative knowledge about relative orientation can be expressed in form of ternary point relations. In this paper we present a calculus based on ternary relations. It utilises finer distinctions than previously published calculi. It permits differentiations which are useful in realistic application scenarios that cannot directly be dealt with in coarser calculi. There is a price to pay for the advanced options: useful mathematical results for coarser calculi do not hold for the new calculus. This tradeoff is demonstrated by a direct comparison of the new calculus with the flip-flop calculus.