Subtle emotional expressions of synthetic characters
International Journal of Human-Computer Studies - Special issue: Subtle expressivity for characters and robots
How do robotic agents' appearances affect people's interpretations of the agents' attitudes?
CHI '07 Extended Abstracts on Human Factors in Computing Systems
Smoothing human-robot speech interactions by using a blinking-light as subtle expression
ICMI '08 Proceedings of the 10th international conference on Multimodal interfaces
Smoothing human-robot speech interactions by using a blinking-light as subtle expression
ICMI '08 Proceedings of the 10th international conference on Multimodal interfaces
Artificial subtle expressions: intuitive notification methodology of artifacts
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
User-adaptive coordination of agent communicative behavior in spoken dialogue
SIGDIAL '10 Proceedings of the 11th Annual Meeting of the Special Interest Group on Discourse and Dialogue
Effects of different types of artifacts on interpretations of artificial subtle expressions (ASEs)
CHI '11 Extended Abstracts on Human Factors in Computing Systems
ACII'11 Proceedings of the 4th international conference on Affective computing and intelligent interaction - Volume Part II
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Speech overlaps, undesired collisions of utterances between systems and users, harm smooth communication and degrade the usability of systems. We propose a method to enable smooth speech interactions between a user and a robot, which enables subtle expressions by the robot in the form of a blinking LED attached to its chest. In concrete terms, we show that, by blinking an LED from the end of the user's speech until the robot's speech, the number of undesirable repetitions, which are responsible for speech overlaps, decreases, while that of desirable repetitions increases. In experiments, participants played a last-and-first game with the robot. The experimental results suggest that the blinking-light can prevent speech overlaps between a user and a robot, speed up dialogues, and improve user's impressions.