Fitts' law has proven to be a strong predictor of pointing performance under a wide range of
conditions. However, it has been insufficient in modeling small-target acquisition with finger …

In this study, we introduce a new mental spelling system based on steady-state visual
evoked potential (SSVEP), adopting a QWERTY style layout keyboard with 30 LEDs …

The proliferation of touchscreen devices has made soft keyboards a routine part of life.
However, ultra-small computing platforms like the Sony SmartWatch and Apple iPod Nano …

Alphanumeric text entry is a challenge for Virtual Reality (VR) applications. VR enables new
capabilities, impossible in the real world, such as an unobstructed view of the keyboard …

Designers reportedly struggle with design optimization tasks where they are asked to find a
combination of design parameters that maximizes a given set of objectives. In HCI, design …

We present VelociTap: a state-of-the-art touchscreen keyboard decoder that supports a
sentence-based text entry approach. VelociTap enables users to seamlessly choose from …

We present WrisText-a one-handed text entry technique for smartwatches using the joystick-
like motion of the wrist. A user enters text by whirling the wrist of the watch hand, towards six …

We present PalmType, which uses palms as interactive keyboards for smart wearable
displays, such as Google Glass. PalmType leverages users' innate ability to pinpoint specific …

Current soft QWERTY keyboards often consume a large portion of the screen space on
portable touchscreens. This space consumption can diminish the overall user experi-ence …

Text entry in virtual reality (VR) is currently a common activity and a challenging problem. In
this paper, we introduce HiPad, leveraging a circular touchpad with a circular virtual …