FlexType: Flexible Text Input with a Small Set of Input Gestures

FlexType: Flexible Text Input with a Small Set of Input Gestures
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FlexType:通过一小组输入手势实现灵活的文本输入

DOI:
10.1145/3581641.3584077
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发表时间:
2023
期刊:
Proceedings of the 28th International Conference on Intelligent User Interfaces
影响因子:
--
通讯作者:
Vertanen, Keith
Vertanen, Keith
中科院分区:
--
文献类型:
--
作者:
Gaines, Dylan;Baker, Mackenzie M;Vertanen, Keith

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在许多情况下,通过在物理或触摸屏键盘上选择精确位置来输入文本可能是不切实际或不可能的。我们提出了一个模糊的键盘与四个字符组,具有潜在的应用程序的眼睛自由的文本输入,以及文本输入使用一个单一的开关或脑机接口。我们开发了一个程序,利用长跨度语言模型的消歧算法的基础上,优化这些字符组。我们在离线优化实验中产生了无约束和无约束的字符组,并在纵向用户研究中进行了比较。我们的研究结果并没有显示出显着差异的限制和不受限制的字符组后,四个小时的实践。正如预期的那样,参与者在第一次会议上与不受约束的小组有更多的错误,这表明学习技术的障碍更高。因此,我们建议使用受视觉约束的字符组,在没有视觉反馈的情况下,参与者能够实现平均每分钟12.0个单词的输入率,2.03%的字符错误率。
In many situations, it may be impractical or impossible to enter text by selecting precise locations on a physical or touchscreen keyboard. We present an ambiguous keyboard with four character groups that has potential applications for eyes-free text entry, as well as text entry using a single switch or a brain-computer interface. We develop a procedure for optimizing these character groupings based on a disambiguation algorithm that leverages a long-span language model. We produce both alphabetically-constrained and unconstrained character groups in an offline optimization experiment and compare them in a longitudinal user study. Our results did not show a significant difference between the constrained and unconstrained character groups after four hours of practice. As expected, participants had significantly more errors with the unconstrained groups in the first session, suggesting a higher barrier to learning the technique. We therefore recommend the alphabetically-constrained character groups, where participants were able to achieve an average entry rate of 12.0 words per minute with a 2.03% character error rate using a single hand and with no visual feedback.
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