Towards Participant-Independent Stress Detection Using Instrumented Peripherals

Towards Participant-Independent Stress Detection Using Instrumented Peripherals
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使用仪表外设实现独立于参与者的压力检测

DOI:
10.1109/taffc.2021.3061417
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发表时间:
2021
影响因子:
11.2
通讯作者:
Gutierrez-Osuna, Ricardo
Gutierrez-Osuna, Ricardo
中科院分区:
计算机科学2区
文献类型:
--
作者:
Dacunhasilva, Dennis Rodrigo;Wang, Zelun;Gutierrez-Osuna, Ricardo

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测量工作压力的方法通常依赖于问卷的主观测量,或者需要专用的传感器,这些传感器佩戴起来很麻烦,而且会干扰任务。为了解决这个问题,我们提出了一种使用带有压力传感器的商品设备(键盘、鼠标)不显眼地检测压力的方法。我们提出了一种极简设计,可以很容易地被其他研究人员使用现成的低成本硬件复制。我们在实验室实验中验证了该设计,该实验模拟了办公室任务和轻度压力源,同时避免了先前研究的方法局限性。当使用文献中报道的传统特征(击键动力学,鼠标轨迹)与压力传感器的信息增强时,我们比较了压力检测性能。我们的结果表明,压力为压力歧视提供了额外的信息;将压力信息添加到击键动力学和鼠标轨迹中,可以分别提高6%和3%的分类性能。这些结果表明,已经成为现代工作场所一部分的设备如何被使用和增强,以自动且不显眼地检测压力。
Methods to measure work stress generally rely on subjective measures from questionnaires or require dedicated sensors that are cumbersome to wear and interfere with the task. To address this problem, we propose a method to detect stress unobtrusively using commodity devices (keyboards, mice) instrumented with pressure sensors. We propose a minimalist design that can be easily replicated by other researchers using off-the-shelf and low-cost hardware. We validate the design in a laboratory experiment that simulates office tasks and mild stressors while avoiding methodological limitations of previous studies. We compare stress-detection performance when using conventional features reported in the literature (keystroke dynamics, mouse trajectories) augmented with information from pressure sensors. Our results indicate that pressure provides additional information for stress discrimination; adding pressure information to keystroke dynamics and mouse trajectories improves classification performance by 6% and 3%, respectively. These results show how devices that are already part of the modern workplace may be used and enhanced to automatically and unobtrusively detect stress.
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