text entry

Silent speech interaction (SSI) allows users to discreetly input text without using their hands. Existing wearable SSI systems typically require custom devices and are limited to a small lexicon, limiting their utility to a small set of command …

帕金森氏症常见于老年群体，由于手抖以及肌肉僵硬等原因，用户在智能触屏手机上的文本输入效率低下。本研究建模帕金森用户在QWERTY软键盘上的指点时空特性，提出用于输入预测的弹性概率模型，对文本输入意图进行高效的统计解码。用户研究表明，本方法可达22.8单词/分钟的输入效率，对比于基准文本输入法，错误率显著降低，用户偏好度等主观评测指标显著提升。