This work was co-supported by the NSFC Project (grant no: 60863010) and Special Program for the National Basic Research Program of China (Pre-973 Program, grant no. 2010CB334709).
Special Issue Paper
UEGM: uncertain emotion generator under multi-stimulus†
Article first published online: 13 APR 2011
Copyright © 2011 John Wiley & Sons, Ltd.
Computer Animation and Virtual Worlds
Special Issue: CASA' 2011 Special Issue
Volume 22, Issue 2-3, pages 141–149, April - May 2011
How to Cite
Xiang, N., Zhao, H., Zhou, X., Xu, M., El Rhalibi, A. and Wu, Y. (2011), UEGM: uncertain emotion generator under multi-stimulus. Comp. Anim. Virtual Worlds, 22: 141–149. doi: 10.1002/cav.411
- Issue published online: 17 APR 2011
- Article first published online: 13 APR 2011
- affective computing;
- virtual human;
- uncertain emotion generation;
- emotion expression;
- particle filter
In this paper, we introduce a novel particle filtering architecture to simulate uncertain emotion generation under multi-stimulus, to enrich emotions for virtual characters. Particles are exploited to predict emotions by sampling possible natural emotional reactions from individuals' memories and common reactions, and the prediction is subsequently adjusted through likelihood function constructed through appraisals of the cognitive component. Thus this generation process combines the natural reactions and cognitive results of individuals' into a unified architecture. Furthermore, the expression of emotion as a communicative act is implemented by setting moral standards that an individual must obey, no matter what his or her real emotional reaction is to the stimulus. This generation and expression process is implemented with our uncertain emotion generator under multi-stimulus system (UEGM). Copyright © 2011 John Wiley & Sons, Ltd.