Effects of SMILE Emotional Model on Humanoid Robot User Interaction

2015 
Naturalistic conversation and emotions, while difficult to approximate in robots, facilitate interactions with non-expert users and serve to make robots more relatable and predictable. This paper describes the implementation and evaluation of two major improvements upon an existing interface, the SMILE app for the MU-L8 humanoid robot. The original version of the app is compared to a version in which popups and extraneous user touches are removed, and they are both compared to a third version in which the robot's emotions decay with time. These versions are tested in terms of ease of use, user engagement, and naturalness of interaction. User feedback and observer ratings are collected for 15 participants, and their results are described. These improvements contribute advances in the field of smartphone humanoid robotics interfaces toward a more ideal emotional and conversational model.
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