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Laughter is a complex, multi-modal phenomenon and important non-verbal affective communicative signal between humans. It is posited that such significance will persist on incorporating laughter into human-machine interaction and that future technologies capable of recognising and responding appropriately to the affective cues of non-verbal communications modalities such as laughter will provide enjoyable, powerful interaction styles. Increasing affective computing research effort focuses on how non-verbal cues such as body movement, facial and vocal expressions can be used in machine recognition of affect, but laughter body movement has not yet been examined.  

ILHAIRE was an FP7 European project exploring the recognition of the affective nuances of laughter and how these are expressed multimodally.