Diego R. Cueva,  Rafael A. M. Gonçalves,  Fábio Cozman,  Marcos R. Pereira- Barretto. 

This paper demonstrates multimodal fusion of emotion sensory data in realistic scenarios of relatively long human-machine interactions. Fusion, combining voice and facial expressions, has been enhanced with semantic information retrieved from Internet social networks, resulting in more accurate determination of the conveyed emotion.

http://www.lbd.dcc.ufmg.br/colecoes/enia/2011/0051.pdf

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