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IVA
2007
Springer

Searching for Prototypical Facial Feedback Signals

14 years 5 months ago
Searching for Prototypical Facial Feedback Signals
Embodied conversational agents should be able to provide feedback on what a human interlocutor is saying. We are compiling a list of facial feedback expressions that signal attention and interest, grounding and attitude. As expressions need to serve many functions at the same time and most of the component signals are ambiguous, it is important to get a better idea of the many to many mappings between displays and functions. We asked people to label several dynamic expressions as a probe into this semantic space. We compare simple signals and combined signals in order to find out whether a combination of signals can have a meaning on its own or not, i. e. the meaning of single signals is different from the meaning attached to the combination of these signals. Results show that in some cases a combination of signals alters the perceived meaning of the backchannel. Keywords. Feedback, Facial expressions, Interpretation.
Dirk Heylen, Elisabetta Bevacqua, Marion Tellier,
Added 08 Jun 2010
Updated 08 Jun 2010
Type Conference
Year 2007
Where IVA
Authors Dirk Heylen, Elisabetta Bevacqua, Marion Tellier, Catherine Pelachaud
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