Cognitive Load Measurement with Pen Orientation and Pressure
Cognitive Load Measurement with Pen Orientation and Pressure
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通过笔方向和压力测量认知负荷
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
Fang Chen
中科院分区：
文献类型：
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作者：
Kun Yu;J. Epps;Fang Chen
手写过程中的认知负荷测量对于计算机辅助教育和用户界面适应都具有广阔的前景，但由于缺乏从书写中提取表明认知负荷变化的行为信息的既定方法，因此很难实现。本研究旨在利用笔的方向和笔尖的压力，利用从数字笔书写样本中获得的直接信息来测量认知负荷。该信息使用高斯混合模型 (GMM) 进行建模，并根据包含 600 个手写句子的手写数据集对认知负荷水平进行分类。总体分类精度表明，笔的方向和压力很好地反映了认知负荷的变化，认知负荷分类从52.8%显着提高到75.4%，验证了利用海拔进行样本选择的有效性。 ACM 分类：H5.2 [信息界面和呈现]：评估/方法
Cognitive load measurement during handwriting has broad prospects both for computer-assisted education and for user interface adaptation, but it is difficult to achieve due to the lack of established methods for extracting behavioral information from writing that is indicative of cognitive load variations. This study aimed to measure cognitive load with the direct information available from the writing samples with a digital pen, using the orientation of the pen and the pressure of the pen-tip. This information was modeled with Gaussian Mixture Models (GMM), and cognitive load levels were classified on a handwriting dataset including 600 handwritten sentences. The overall classification accuracy showed that the pen orientation and pressure reflected cognitive load variation well, and the significant improvement in cognitive load classification from 52.8% to 75.4% validated the effectiveness of sample selection using altitude. ACM Classification: H5.2 [Information interfaces and presentation]: Evaluation/methodology