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	Structured Knowledge Tracing Models for Student Assessment on Coursera
	Wang, Zhuo ; Zhu, Jile ; Li, Xiang ; Hu, Zhiting ; Zhang, Ming
	2016
关键词	Knowledge Tracing MOOCs Student Assessment Student Modeling Hierarchical and Temporal Knowledge Tracing MOOCs Student Assessment Student Modeling Hierarchical and Temporal
英文摘要	Massive Open Online Courses (MOOCs) provide an effective learning platform with various high-quality educational materials accessible to learners from all over the world. However, current MOOCs lack personalized learning guidance and intelligent assessment for individuals. Though a few recent attempts have been made to trace students' knowledge states by adapting the popular Bayesian Knowledge Tracing (BKT) model, they have largely ignored the rich structures and correlations among knowledge components (KCs) within a course. This paper proposes to model both the hierarchical and the temporal properties of the knowledge states in order to improve the modeling accuracy. Based on the content organization characteristics on the Coursera MOOC platform, we provide a well-defined KC model, and develop Multi-Grained-BKT and Historical-BKT to capture the above features effectively. Experiments on a Coursera course dataset show our approach significantly improves over previous vanilla BKT models on predicting students' quiz performance.; National Natural Science Foundation of China (NSFC) [61272343, 61472006]; National Basic Research Program (973 Program) [2014CB340405]; EI; CPCI-S(ISTP); CPCI-SSH(ISSHP); wangzhuo@pku.edu.cn; zhujile0918@pku.edu.cn; lixiang.eecs@pku.edu.cn; zhitingh@cs.cmu.edu; mzhang@net.pku.edu.cn; 209-212
语种	英语
出处	3rd Annual ACM Conference on Learning at Scale (L at S)
DOI标识	10.1145/2876034.2893416
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/436195]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Wang, Zhuo,Zhu, Jile,Li, Xiang,et al. Structured Knowledge Tracing Models for Student Assessment on Coursera. 2016-01-01.

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