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arXiv · 1503.04375

Optimization of Switch Keyboards

Xiao Zhang·Kan Fang·Gregory Francis
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Abstract

Patients with motor control difficulties often "type" on a computer using a switch keyboard to guide a scanning cursor to text elements. We show how to optimize some parts of the design of switch keyboards by casting the design problem as mixed integer programming. A new algorithm to find an optimized design solution is approximately 3600 times faster than a previous algorithm, which was also susceptible to finding a non-optimal solution. The optimization requires a model of the probability of an entry error, and we show how to build such a model from experimental data. Example optimized keyboards are demonstrated.

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Xiao Zhang, Kan Fang, Gregory Francis. 2015-03-17. Optimization of Switch Keyboards. https://doi.org/10.1145/2513383.2513394

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