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keyboard

force pressure sensitive keyboard

In Proceedings of UIST 2009
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A practical pressure sensitive computer keyboard (p. 55-58)

Abstract plus

A pressure sensitive computer keyboard is presented that independently senses the force level on every depressed key. The design leverages existing membrane technologies and is suitable for low-cost, high-volume manufacturing. A number of representative applications are discussed.

graphical keyboard

In Proceedings of UIST 2000
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The metropolis keyboard - an exploration of quantitative techniques for virtual keyboard design (p. 119-128)

keyboard layout

In Proceedings of UIST 2010
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Performance optimizations of virtual keyboards for stroke-based text entry on a touch-based tabletop (p. 77-86)

Abstract plus

Efficiently entering text on interactive surfaces, such as touch-based tabletops, is an important concern. One novel solution is shape writing - the user strokes through all the letters in the word on a virtual keyboard without lifting his or her finger. While this technique can be used with any keyboard layout, the layout does impact the expected performance. In this paper, I investigate the influence of keyboard layout on expert text-entry performance for stroke-based text entry. Based on empirical data, I create a model of stroking through a series of points based on Fitts's law. I then use that model to evaluate various keyboard layouts for both tapping and stroking input. While the stroke-based technique seems promising by itself (i.e., there is a predicted gain of 17.3% for a Qwerty layout), significant additional gains can be made by using a more-suitable keyboard layout (e.g., the OPTI II layout is predicted to be 29.5% faster than Qwerty).

keyboard mapping

on screen keyboard

In Proceedings of UIST 2000
Article Picture

The metropolis keyboard - an exploration of quantitative techniques for virtual keyboard design (p. 119-128)

soft keyboard

In Proceedings of UIST 2000
Article Picture

The metropolis keyboard - an exploration of quantitative techniques for virtual keyboard design (p. 119-128)

virtual keyboard

In Proceedings of UIST 2000
Article Picture

The metropolis keyboard - an exploration of quantitative techniques for virtual keyboard design (p. 119-128)

In Proceedings of UIST 2010
Article Picture

Performance optimizations of virtual keyboards for stroke-based text entry on a touch-based tabletop (p. 77-86)

Abstract plus

Efficiently entering text on interactive surfaces, such as touch-based tabletops, is an important concern. One novel solution is shape writing - the user strokes through all the letters in the word on a virtual keyboard without lifting his or her finger. While this technique can be used with any keyboard layout, the layout does impact the expected performance. In this paper, I investigate the influence of keyboard layout on expert text-entry performance for stroke-based text entry. Based on empirical data, I create a model of stroking through a series of points based on Fitts's law. I then use that model to evaluate various keyboard layouts for both tapping and stroking input. While the stroke-based technique seems promising by itself (i.e., there is a predicted gain of 17.3% for a Qwerty layout), significant additional gains can be made by using a more-suitable keyboard layout (e.g., the OPTI II layout is predicted to be 29.5% faster than Qwerty).