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Performance of Accessible Gesture-Based Indic Keyboard

机译:基于可访问手势的印度键盘的性能

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Though several keyboards for Indic languages are available on Android Play store, few are accessible by the visually impaired. Particularly, none of the gesture-based keyboards are accessible. We developed an accessible prototype of the popular gesture-based, logically organised Hindi keyboard Swarachakra. In this paper, we present findings from a two-part study. In the first part, we conducted a qualitative study with 12 visually impaired users on Swarachakra. In the second part, we conducted a longitudinal, within-subject evaluation comparing Swarachakra and Google Indic keyboard. At the end of the two-week long study, 10 participants had spent an average of 6.5 h typing, including training and text input tasks. Our study establishes benchmark for text input speeds for Indic languages on virtual keyboards by visually impaired users. The mean typing speed on Swarachakra was 14.53 cpm and that on Google Indic was 12.79 cpm. The mean speeds in last session were 21.72 cpm and 18.36 cpm respectively. Regression analysis indicates that the effect of keyboard was significant. In addition, we report the user preferences, the challenges faced and qualitative findings that are relevant to future research in Indic language text input by visually impaired users.
机译:尽管Android Play商店提供了几种用于印度语的键盘,但视障人士几乎无法使用。特别是,所有基于手势的键盘均不可访问。我们开发了流行的基于手势,逻辑组织的印地语键盘Swarachakra的可访问原型。在本文中,我们提出了一项由两部分组成的研究的发现。在第一部分中,我们对Swarachakra上的12位视障用户进行了定性研究。在第二部分中,我们进行了纵向的主题内部评估,比较了Swarachakra和Google Indic键盘。在为期两周的长期研究结束时,有10名参与者平均花了6.5小时的打字时间,包括培训和文本输入任务。我们的研究为视力障碍的用户建立了虚拟键盘上印度语的文本输入速度的基准。 Swarachakra的平均打字速度为14.53 cpm,而Google Indic的平均打字速度为12.79 cpm。上一阶段的平均速度分别为21.72 cpm和18.36 cpm。回归分析表明,键盘效果显着。此外,我们报告了用户的偏好,所面临的挑战和定性的发现,这些发现与视力障碍用户在印度语文本输入中的未来研究相关。

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