# Optimization of Switch Keyboards

arXiv: https://arxiv.org/abs/1503.04375 · HTML: https://mlsanity.com/paper/1503.04375/

## Key facts

- Cited by 1 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 15 Mar 2015.

## Built on by (most cited first, 1 of 1)

- [MotorEase: Automated Detection of Motor Impairment Accessibility Issues in Mobile App UIs](https://mlsanity.com/paper/2403.13690/) (2024)

## Abstract (arXiv)

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.