Project Pages

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Practical Statistics for HCI
Aligned Rank Transform
Bubble Lens
Pointing Endpoint Prediction
$1, $N, and $P stroke recognizers
GEsture Clustering toolKit (GECKo)
Gesture RElative Accuracy Toolkit (GREAT)
Input Observer
Accessible Goal Crossing
FittsStudy
Pointing Magnifier
Angle Mouse
EdgeWrite

Greetings!   I am an Associate Professor in the Information School and an Adjunct Associate Professor in Computer Science & Engineering at the University of Washington. I am a scientist, inventor, and entrepreneur in the field of human-computer interaction. As a scientist, I study people’s interaction with computers, formally evaluating human performance with interactive systems. As an inventor, I combine computer science, interaction design, and psychology to devise new interactive technologies for human use. As an entrepreneur, I have worked in startups commercializing interactive technologies, including AnswerDash, which I co-founded and for which I serve as a venture-backed CEO. My primary areas of expertise are input techniques (text entry, pointing, touch, gesture, voice, eye-gaze), mobile user interfaces, web design, human performance measurement and modeling, HCI research methods, and computer access for people with disabilities. I consider myself an "interaction scientist," and human interaction with technology is my phenomena of interest.

I direct the MAD Lab. I have students from information science and computer science. We are active members of the DUB Group.   More...

I have worked in industry and occasionally serve as a consultant on intellectual property matters.   More...

See my CV, faculty profile, DUB profile, ACM author page, or Google Scholar page. Or find me in the HCI Bibliography.

Videos! Click to watch.