A probabilistic model of plan recognition
AAAI'91 Proceedings of the ninth National conference on Artificial intelligence - Volume 1
A probabilistic analysis of marker-passing techniques for plan-recognition
UAI'91 Proceedings of the Seventh conference on Uncertainty in Artificial Intelligence
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Useless paths are a chronic problem for marker-passing techniques. We use a probabilistic analysis to justify a method for quickly identifying and rejecting useless paths. Using the same analysis, we identify key conditions and assumptions necessary for marker passing to perform well.