15th Annual Conference of the International Speech Communication Association

September 14-18, 2014

Predicting When to Laugh with Structured Classification

Bilal Piot (1), Olivier Pietquin (2), Matthieu Geist (1)

(1) Supélec, France
(2) LIFL, France

Today, Embodied Conversational Agents (ECAs) are emerging as natural media to interact with machines. Applications are numerous and ECAs can reduce the technological gap between people by providing user-friendly interfaces. Yet, ECAs are still unable to produce social signals appropriately during their interaction with humans, which tends to make the interaction less instinctive. Especially, very little attention has been paid to the use of laughter in human-avatar interactions despite the crucial role played by laughter in human-human interaction. In this paper, a method for predicting the most appropriate moment for laughing for an ECA is proposed. Imitation learning via a structured classification algorithm is used in this purpose and is shown to produce a behavior similar to humans' on a practical application: the yes/no game.

Full Paper

Bibliographic reference.  Piot, Bilal / Pietquin, Olivier / Geist, Matthieu (2014): "Predicting when to laugh with structured classification", In INTERSPEECH-2014, 1786-1790.