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Chapter 13: Nonsymbolic Gestural Interac... > 13.7 Conclusions - Pg. 343

References 343 to come to a general conclusion. A promising solution may be the combination of acceleration-based and EMG-based recognition, as was recently shown by Chen and colleagues [7] for the recognition of Chinese and by Kim and colleagues [27] for the recognition of German sign language. 13.7 CONCLUSIONS This chapter provided insights into how qualitative aspects of gestural activity can be exploited as an input channel for a variety of contextual variables, such as the emo- tional state of the user, her personality, and her cultural background. It was shown by evidence from studies on these aspects that a general set of qualitative movement features can be defined, and it was shown how these features can further the recogni- tion of emotion, personality, or cultural background from the user's gestures. Although the presented approaches are very stimulating and relevant, it remains to be seen how such social-psychological context variables can be integrated into human-centric ambient intelligence. This is because, although the speed and spatial extent of a gesture might give hints of the user's personality profile, these features