Development and Evaluation of English Learning System with Collaborative Filtering for Self-Regulated Learning

本研究旨在开发具有能力倾向治疗互动（ATI）、社会支持和认知支持功能的在线英语学习系统，并对该系统进行评价。针对ATI，我们开发了协同过滤推荐系统。在分析阶段，我们通过分析在线英语学习系统的实践数据，考虑协同过滤作为ATI支持技术对在线英语学习系统的影响。在社会支持和认知学习功能方面，我们考虑了“分裂小池塘”效应，开发了协作系统。“小池分裂”效应是学术自我概念的一种。学术自我概念是对学术技能或能力的自我认识或自我概念。学业自我概念是通过社会比较（如与同学的考试成绩比较）消极或积极地形成的。“小池分裂”效应指的是上述社会比较所形成的学术自我概念。该系统允许学习者使用标记和注释等认知学习策略。结果表明，协同过滤对学习有直接的影响。而协同过滤则通过基于学习者对英语阅读内容的兴趣进行推荐，对学习者对学习策略的理解产生了积极的影响。对于社会支持和认知支持，该系统似乎对促进认知学习策略的使用有效，但对社会支持的显著影响在本研究中未得到证实。

This study aims to develop online English learning system with the functions of Aptitude Treatment Interaction(ATI), social support, and cognitive support and evaluate this system. For ATI, we developed collaborative filtering system for the recommendation. In analysis phase, we considered the effects of collaborative filtering as ATI support technology on online English learning system through the analysis of the practice data of this system. For social support and cognitive learning function, we developed the collaborative system with the consideration of "split-little-pond" effect."Split-little-pond" effect is one of academic self-concept. Academic self-concept is self-knowledge or self-concept about academic skill or ability. Academic self-concept is formed negatively or positively by social comparison such as the comparison with test score of their classmates."Split-little-pond" effect means academic self-concept formed by social comparison mentioned above. This system allows learners to use cognitive learning strategies such as marking and annotation. The results show that collaborative filtering seems to have direct effect on learning. However, collaborative filtering has positive effect on learner's understanding of learning strategies by the recommendation based on learner's interest in the content of English reading. For social and cognitive support, this system seems to be effective on the promotion of the use of cognitive learning strategies, but the significant effect on social support was not confirmed in this study.