Ticker is a probabilistic stereophonic single-switch text entry method for visually-impaired users with motor disabilities who rely on single-switch scanning systems to communicate. Such scanning systems are sensitive to a variety of noise sources, which are inevitably introduced in practical use of single-switch systems. Ticker uses a novel interaction model based on stereophonic sound coupled with statistical models for robust inference of the user's intended text in the presence of noise. As a consequence of its design, Ticker is resilient to noise and therefore a practical solution for single-switch scanning systems. Ticker's performance is validated using a combination of simulations and empirical user studies.

中文翻译：

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Ticker：一种针对视障用户的自适应单开关文本输入方法


Ticker 是一种概率立体声单开关文本输入方法，适用于依赖单开关扫描系统进行通信的视觉障碍和运动障碍用户。这种扫描系统对各种噪声源很敏感，这些噪声源在单开关系统的实际使用中不可避免地引入。 Ticker 使用基于立体声的新颖交互模型与统计模型相结合，以便在存在噪声的情况下稳健地推断用户想要的文本。由于其设计，Ticker 具有抗噪声能力，因此是单开关扫描系统的实用解决方案。 Ticker 的性能通过模拟和实证用户研究的结合进行验证。