A formal theory of plan recognition
A formal theory of plan recognition
A Bayesian model of plan recognition
Artificial Intelligence
The equivalence of four extensions of context-free grammars
Mathematical Systems Theory
Handbook of formal languages, vol. 3
An efficient context-free parsing algorithm
Communications of the ACM
A resource-adaptive mobile navigation system
Proceedings of the 7th international conference on Intelligent user interfaces
From Motion Observation to Qualitative Motion Representation
Spatial Cognition II, Integrating Abstract Theories, Empirical Studies, Formal Methods, and Practical Applications
Action Recognition Using Probabilistic Parsing
CVPR '98 Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition
Probabilistic grammars for plan recognition
Probabilistic grammars for plan recognition
Using GPS to learn significant locations and predict movement across multiple users
Personal and Ubiquitous Computing
Some computational properties of Tree Adjoining Grammars
ACL '85 Proceedings of the 23rd annual meeting on Association for Computational Linguistics
Discourse relations: a structural and presuppositional account using lexicalised TAG
ACL '99 Proceedings of the 37th annual meeting of the Association for Computational Linguistics on Computational Linguistics
A Mobility Prediction Architecture Based on Contextual Knowledge and Spatial Conceptual Maps
IEEE Transactions on Mobile Computing
Learning and inferring transportation routines
Artificial Intelligence
On natural language processing and plan recognition
IJCAI'07 Proceedings of the 20th international joint conference on Artifical intelligence
A general model for online probabilistic plan recognition
IJCAI'03 Proceedings of the 18th international joint conference on Artificial intelligence
Recognizing plan/goal abandonment
IJCAI'03 Proceedings of the 18th international joint conference on Artificial intelligence
Journal of Computer and System Sciences
Interpretation of intentional behavior in spatial partonomies
Spatial cognition III
Geo referenced dynamic bayesian networks for user positioning on mobile systems
LoCA'05 Proceedings of the First international conference on Location- and Context-Awareness
Representing the meaning of spatial behavior by spatially grounded intentional systems
GeoS'05 Proceedings of the First international conference on GeoSpatial Semantics
Time geography inverted: recognizing intentions in space and time
Proceedings of the 18th SIGSPATIAL International Conference on Advances in Geographic Information Systems
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Mobile intention recognition is the problem of inferring a mobile agent's intentions from her spatio-temporal behavior. The intentions an agent can have in a specific situation depend on the spatial context, and on the spatially contextualized behavior history. We introduce two spatially constrained grammars that allow for modeling of complex constraints between space and intentions, one based on Context-Free, one based on Tree-Adjoining Grammars. We show which of these formalisms is suited best for frequently occurring intentional patterns. We argue that our grammars are cognitively comprehensible, while at the same time helping to prune the search space for intention recognition.