Automatic Cognitive Load Classification Using High-Frequency Interaction Events: An Exploratory Study

Tao Lin, Xiao Li, Zhiming Wu and Ningjiu Tang
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Tao Lin: Department of Computer Science, Sichuan University, Chengdu, China
Xiao Li: Department of Computer Science, Sichuan University, Chengdu, China
Zhiming Wu: Department of Computer Science, Sichuan University, Chengdu, China
Ningjiu Tang: Department of Computer Science, Sichuan University, Chengdu, China

International Journal of Technology and Human Interaction (IJTHI), 2013, vol. 9, issue 3, 73-88

Abstract: There is still a challenge of creating an evaluation method which can not only unobtrusively collect data without supplement equipment but also objectively, quantitatively and in real-time evaluate cognitive load of user based the data. The study explores the possibility of using the features extracted from high-frequency interaction events to evaluate cognitive load to respond to the challenge. Specifically, back-propagation neural networks, along with two feature selection methods (nBset and SFS), were used as the classifier and it was able to use a set of features to differentiate three cognitive load levels with an accuracy of 74.27%. The main contributions of the research are: (1) demonstrating the use of combining machine learning techniques and the HFI features in automatically evaluating cognitive load; (2) showing the potential of using the HFI features in discriminating different cognitive load when suitable classifier and features are adopted.

Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:igg:jthi00:v:9:y:2013:i:3:p:73-88

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