A qualitative physics based on confluences
Artificial Intelligence - Special volume on qualitative reasoning about physical systems
A symbolic approach to qualitative kinematics
Artificial Intelligence
Maintaining knowledge about temporal intervals
Communications of the ACM
Qualitative Spatial Reasoning: Theory and Practice: Application to Robot Navigation
Qualitative Spatial Reasoning: Theory and Practice: Application to Robot Navigation
Enhancing GISs for spatio-temporal reasoning
Proceedings of the 10th ACM international symposium on Advances in geographic information systems
EACL '95 Proceedings of the seventh conference on European chapter of the Association for Computational Linguistics
Qualitative Spatial Representation and Reasoning: An Overview
Fundamenta Informaticae - Qualitative Spatial Reasoning
Qualitative change to 3-valued regions
GIScience'10 Proceedings of the 6th international conference on Geographic information science
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This paper presents an abstraction of a vague and rapidly-changing environment, an urban disaster space, and a reasoning engine which recognizes and describes the motion of rescue agents as they traverse the disaster space. More specifically, we present a qualitative abstraction of the Robocup Rescue simulation environment, and implement a commentator engine, which constructs a qualitative representation of the changes in the environment and produces descriptions of the agents' motion by recognizing patterns which motion can take. The patterns recognized are elements of a set of formalizations that qualify each type of motion pattern based on a qualitative representation of vague spatiotemporal moving objects. We also present a set of performance metrics to evaluate our qualitative representation.