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|a Lee, Jin Joo
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|a Massachusetts Institute of Technology. Media Laboratory
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|a Program in Media Arts and Sciences
|q (Massachusetts Institute of Technology)
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|a Lee, Jin Joo
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|a Knox, Brad
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|a Breazeal, Cynthia Lynn
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|a Knox, Brad
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|a Breazeal, Cynthia Lynn
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|a Modeling the Dynamics of Nonverbal Behavior on Interpersonal Trust for Human-Robot Interactions
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|b Association for the Advancement of Artificial Intelligence,
|c 2014-12-18T17:35:33Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/92378
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|a We describe research towards creating a computational model for recognizing interpersonal trust in social interactions. We found that four negative gestural cues-leaning-backward, face-touching, hand-touching, and crossing-arms-are together predictive of lower levels of trust. Three positive gestural cues-leaning-forward, having arms-in-lap, and open-arms-are predictive of higher levels of trust. We train a probabilistic graphical model using natural social interaction data, a "Trust Hidden Markov Model" that incorporates the occurrence of these seven important gestures throughout the social interaction. This Trust HMM predicts with 69.44% accuracy whether an individual is willing to behave cooperatively or uncooperatively with their novel partner; in comparison, a gesture-ignorant model achieves 63.89% accuracy. We attempt to automate this recognition process by detecting those trust-related behaviors through 3D motion capture technology and gesture recognition algorithms. We aim to eventually create a hierarchical system-with low-level gesture recognition for high-level trust recognition-that is capable of predicting whether an individual finds another to be a trustworthy or untrustworthy partner through their nonverbal expressions.
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|a en_US
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|a Article
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|t Proceedings of the 2013 AAAI Spring Symposium Series
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