On-screen Keyboard Access Method to Reduce Workload

描述（由申请人提供）：我们开发了一种名为GWP的集成写作方法，可以在打字，单词预测和预测手势之间无缝切换。预测性手势使人能够通过将鼠标光标移向单词中的几个字母来输入文本，而不需要精确地瞄准字母或朝向期望单词中的所有字母的手势。我们对预测手势的初步研究表明，残疾人创建文本时使用的精确字母选择比使用单词预测时少47%。我们建议改进我们的预测手势分析算法，使其更具容错性。我们将我们的集成写作方法整合到一个屏幕键盘中，该键盘在网络浏览器中运行，并访问基于云的文字处理器。开发基于浏览器的屏幕键盘提供对各种各样的设备的访问，包括智能电话、平板电脑和计算机。我们将在残疾人的真实的生活中对这种书写方法进行为期三个月的评估。我们的假设是，对于大多数残疾人来说，与单词预测相比，辅助技术专家将GWP评为输入文本的整体更好方法。专家们将根据在三个月的评估期内收集的用户数据做出判断。 公共卫生相关性：这项拟议中的研究为严重残疾的人提供了一种有效的方法，可以将文本输入到各种计算设备中，从而消除了重复、精确选择字母的需求。

DESCRIPTION (provided by applicant): We develop an integrated writing method named GWP that seamlessly switches between typing, word prediction, and predictive gesturing. Predictive gesturing enables a person to enter text by moving the mouse cursor toward a few letters in a word without requiring precise targeting of the letters or gestures towards all the letters in the desired word. Our preliminary work on predictive gesturing demonstrated that people with disabilities created text using 47% fewer precise letter selections than when using word prediction. We propose to improve our predictive gesture analysis algorithm so that it is more error tolerant. We incorporate our integrated writing method into an on-screen keyboard that operates within web-browsers and accesses cloud-based word processors. Developing a browser- based, on-screen keyboard provides access to a wide variety of devices, including smartphones, tablets, and computers. We will evaluate this writing method during real- life use by people with disabilities over a three month period. It is our hypothesis that assistive technology experts will rate GWP as the overall better method for entering text compared to word prediction for most people with disabilities. Experts will base their judgment on user data collected during the three month evaluation period. PUBLIC HEALTH RELEVANCE: The proposed research offers people with severe disability an efficient method for entering text into a broad range of computing devices that alleviates the need for repetitive, precise letter selections.