My field is human-computer interaction (HCI).
My research seeks to scientifically understand people's interactions with computers and information,
and to improve those interactions through design and engineering,
particularly for people with disabilities.
Interaction is my major phenomena of interest—measuring it, modeling it, and designing it
to create better user experiences.
My specific research topics include:
(i) input techniques (text entry, pointing, touch, gesture, voice, gaze);
(ii) mobile and tabletop user interfaces;
(iii) human performance with computers;
(iv) HCI research and design methods; and
(v) accessible computing.
I pursue a vision of Ability-Based Design, where the human abilities required
to operate a technology in a given context are questioned, and systems are made operable by or adaptable to
My work has received 19 paper awards, including
7 best papers and 7 honorable mentions from the
ACM CHI conference.
Some of my notable projects are
the $-family gesture recognizers,
the end-user elicitation design method,
the Slide Rule design for accessible touchscreen gestures,
ARTool for nonparametric factorial statistical analyses,
and the EdgeWrite text entry system.