Seiji Yamada

schoolNational Institute of Informaticsbar_chart#3747 Global Rank

Total Papers

HCI Rank

#3747

Research Areas

Years Active

Recent Publications

Waiting Time Perceptions for Faster Count-downs/ups Are More Sensitive Than Slower Ones: Experimental Investigation and Its Application

Countdowns and count-ups are very useful displays that explicitly show how long users should wait and also show the current processing states of a given task. Most countdowns or count-ups decrease or increase their digit every one second exactly, and most users have an implicit assumption that the digit changes every…

CHI '20CorrespondingVoice User Interface (VUI) Design +1

Exploring Auditory Information to Change Users' Perception of Time Passing as Shorter

Although the processing speed of computers has been drastically increasing year by year, users still have to wait for computers to complete tasks or to respond. To cope with this, several studies have proposed presenting certain visual information to users to change their perception of time passing as shorter, e.g., p…

CHI '183rd AuthorVibrotactile Feedback & Skin Stimulation +1

Vibrational Artificial Subtle Expressions: Conveying System’s Confidence Level to Users by Means of Smartphone Vibration

Artificial subtle expressions (ASEs) are machine-like expressions used to convey a system's confidence level to users intuitively. So far, auditory ASEs using beep sounds, visual ASEs using LEDs, and motion ASEs using robot movements have been implemented and shown to be effective. In this paper, we propose a novel ty…

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