Delaying Commitment in Plan Recognition Using Combinatory Categorial Grammars

@inproceedings{Geib2009DelayingCI,
  title={Delaying Commitment in Plan Recognition Using Combinatory Categorial Grammars},
  author={Christopher W. Geib},
  booktitle={IJCAI},
  year={2009}
}
This paper presents a new algorithm for plan recognition called ELEXIR (Engine for LEXicalized Intent Recognition). ELEXIR represents the plans to be recognized with a grammatical formalism called Combinatory Categorial Grammar(CCG). We show that representing plans with CCGs can allow us to prevent early commitment to plan goals and thereby reduce runtime. 
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