Estimating Learners ’ Subjective Impressions of the Difficulty of Course Materials in e-Learning Environments
Estimating Learners ’ Subjective Impressions of the Difficulty of Course Materials in e-Learning Environments
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评估电子学习环境中学习者对课程材料难度的主观印象
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
M. Minoh
中科院分区：
文献类型：
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作者：
Kazuaki Nakamura;K. Kakusho;M. Murakami;M. Minoh
与传统课堂授课相比，目前网络学习的一个问题是教师无法评估学生的学习兴趣或学习意愿。根据成就动机理论，学习者的兴趣或意愿与学习者对每一门课程材料的难度的主观印象密切相关。本文提出了一种通过观察学习者在网络学习过程中的行为来估计学习者的SIDC的方法，以便教师能够评估学习者的兴趣或意愿。在估计学习者的SIDC时，我们根据学习者的SIDC与从其行为中提取的特征之间的相关性，对每个学习者使用不同的特征处理准则，考虑到学习者的SIDC与特征之间的相关性可能取决于学习者而采用不同的支持向量机对每个学习者进行建模。在我们的实验结果中，学习者的SIDC估计的平均准确率为85.8%。
One of the problems of present e-learning compared with traditional classroom lectures is that teachers cannot assess learners’ interest in learning or willingness for learning. According to the achievement motivation theory, the learners’ interest or willingness is deeply related to the learners’ subjective impressions of the difficulty of each course material (SIDC). In this paper, we propose the method for estimating the learners’ SIDC by observing their behaviors during e-learning, in order for the teachers to be able to assess the learners’ interest or willingness. In estimating the learners’ SIDC, we use different feature processing criterion for each learner based on the correlation between the learners’ SIDC and the features extracted from their behaviors, which is differently modeled by SVM for each learner, considering that the correlation between the learners’ SIDC and the features may depend on the learners. In the result of our experiment, the learners’ SIDC were estimated with accuracy of 85.8% on an average.