AAAI Publications, Twenty-First International Joint Conference on Artificial Intelligence

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Delaying Commitment in Plan Recognition Using Combinatory Categorial Grammars
Christopher Geib

Last modified: 2009-06-26


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.


Plan Recognition; Activity Recognition; Lexicalized Grammars

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