We propose a user interface that allows multiple users to obtain information interactively and to operate the interface simultaneously on a large display. Users can interact with the display using hand gestures, which enables many users to easily use the system from a distance. In order for each user to effectively use the screen and also not to be interfered with by other users, the system dynamically optimizes the layout of the screen. We created a prototype system and conducted an experiment to compare the proposed interface with those without optimization. The results showed that the participants were able to obtain more information per unit time using the proposed interface. Moreover, the participants were less hurried or frustrated, and felt less interfered with by other users. Yoshio Matsuda, Takashi Komuro: Dynamic Layout Optimization for Multi-user Interaction with a Large Display, Proc. ACM International Conference on Intelligent User Interfaces 2020 (to appear).
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