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基于在线学习行为数据的学习效果模型与影响因素分析 被引量:2
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作者 倪琴 徐宇辉 +1 位作者 魏廷江 高荣 《上海师范大学学报(自然科学版)》 2022年第2期143-148,共6页
为了探究学生在线学习情况与学习效果之间的关系,采用数据标注的方式解决学生学习行为表示的问题.以S大学在线教学平台数据为研究对象,通过数据挖掘技术探寻学生在线学习行为与学习效果之间的关系.对比多种机器学习算法后,选定随机森林... 为了探究学生在线学习情况与学习效果之间的关系,采用数据标注的方式解决学生学习行为表示的问题.以S大学在线教学平台数据为研究对象,通过数据挖掘技术探寻学生在线学习行为与学习效果之间的关系.对比多种机器学习算法后,选定随机森林算法作为学习效果预测模型的基本算法.研究发现:最能影响学习效果的因素是文档学习总时长,最终构建的学习效果预测模型对整体数据集的分类准确率达到84.69%. 展开更多
关键词 学习行为表示 相关性分析 数据挖掘 随机森林算法 分类预测
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Learning embeddings of a heterogeneous behavior network for potential behavior prediction 被引量:1
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作者 Yue-yang WANG Wei-hao JIANG +1 位作者 Shi-liang PU Yue-ting ZHUANG 《Frontiers of Information Technology & Electronic Engineering》 SCIE EI CSCD 2020年第3期422-436,共15页
Potential behavior prediction involves understanding the latent human behavior of specific groups,and can assist organizations in making strategic decisions.Progress in information technology has made it possible to a... Potential behavior prediction involves understanding the latent human behavior of specific groups,and can assist organizations in making strategic decisions.Progress in information technology has made it possible to acquire more and more data about human behavior.In this paper,we examine behavior data obtained in realworld scenarios as an information network composed of two types of objects(humans and actions)associated with various attributes and three types of relationships(human-human,human-action,and action-action),which we call the heterogeneous behavior network(HBN).To exploit the abundance and heterogeneity of the HBN,we propose a novel network embedding method,human-action-attribute-aware heterogeneous network embedding(a4 HNE),which jointly considers structural proximity,attribute resemblance,and heterogeneity fusion.Experiments on two real-world datasets show that this approach outperforms other similar methods on various heterogeneous information network mining tasks for potential behavior prediction. 展开更多
关键词 Network embedding Representation learning Human behavior Social networks Heterogeneous information network ATTRIBUTE
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