Computationally Modeling Interpersonal Trust

Frontiers in Psychology

Cynthia eBreazeal¹  Brad eKnox¹  Jin Joo eLee¹  David eDeSteno²  Jolie eBaumann² 

[1] Massachusetts Institute of Technology;Northeastern University;

关键词: machine learning;    human-robot interaction;    nonverbal behavior analysis;    social signal processing;    computational trust model;    interpersonal trust;   

DOI  :  10.3389/fpsyg.2013.00893

来源: DOAJ

【 摘 要 】

We present a computational model capable of predicting—above human accuracy—the degree of trust a person has toward their novel partner by observing the trust-related nonverbal cues expressed in their social interaction. We summarize our prior work, in which we identify nonverbal cues that signal untrustworthy behavior and also demonstrate the human mind’s readiness to interpret those cues to assess the trustworthiness of a social robot. We demonstrate that domain knowledge gained from our prior work using human-subjects experiments, when incorporated into the feature engineering process, permits a computational model to outperform both human predictions and a baseline model built in naivete' of this domain knowledge. We then present the construction of hidden Markov models to incorporate temporal relationships among the trust-related nonverbal cues. By interpreting the resulting learned structure, we observe that models built to emulate different levels of trust exhibit different sequences of nonverbal cues. From this observation, we derived sequence-based temporal features that further improve the accuracy of our computational model. Our multi-step research process presented in this paper combines the strength of experimental manipulation and machine learning to not only design a computational trust model but also to further our understanding of the dynamics of interpersonal trust.

【 授权许可】

Unknown