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We describe in this paper a framework, called URSF, for simulating ubiquitous computing environment and ubiquitous robots. URSF provides in/out channel with which ubiquitous robot platforms can be plugged. Once connected to the framework, ubiquitous robot platform can percept and affect the world simulated in the framework. The simulated world is built by(More)
This paper presents a process to build a classifier in a data-driven way for recognizing engagement of children in a robot-based math quiz game. The process consists of collecting video recordings from HRI experiments; annotating the social signals and engagement states via video analysis; extracting feature vectors from the annotations and training(More)
Question answering(QA) can vastly improve the quality and effectiveness of knowledge acquisition on the Web. Web search provides a list of documents targeted based on the keywords coined by the users; users need to investigate further the documents to obtain the very knowledge they wanted. QA can come up with the knowledge itself ready to be conceived(More)
In this paper, we propose a socially interactive robot facilitating social skills and identify the effects of robot social skills, to help maintain a natural and sustained interaction between humans and robot in a physical training. To that end, we conducted an experiment with 28 participants using the humanoid robot Nao. As a result, there were significant(More)