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David J. Ward

 

Publications by David J. Ward (bibliography)

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2002
 
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Ward, David J., Blackwell, Alan and MacKay, David J. C. (2002): Dasher: A Gesture-Driven Data Entry Interface for Mobile Computing. In Human-Computer Interaction, 17 (2) pp. 199-228.

Existing devices for communicating information to computers are bulky, slow, or unreliable. Dasher is an interface incorporating language modeling and driven by continuous two-dimensional gestures (e.g., a mouse, a stylus, or eye-tracker). Tests have shown that, after 1 hr of practice, novice users reach a writing speed of about 20 words per minute (wpm) while taking dictation. Experienced users achieve writing speeds of about 34 wpm, compared with typical 10-finger keyboard typing of 40 to 60 wpm. Although the interface is slower than a conventional keyboard, it is simple to use and could be used on personal data assistants and by motion-impaired computer users. Dasher can readily be used to enter text from any alphabet.

© All rights reserved Ward et al. and/or Taylor and Francis

2000
 
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Ward, David J., Blackwell, Alan and MacKay, David J. C. (2000): Dasher -- A Data Entry Interface Using Continuous Gestures and Language Models. In: Ackerman, Mark S. and Edwards, Keith (eds.) Proceedings of the 13th annual ACM symposium on User interface software and technology November 06 - 08, 2000, San Diego, California, United States. pp. 129-137. Available online

 
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