We propose a simple but effective method to recommend exercises with high quality and diversity for students. Our method is made up of three key components: (1) candidate generation module; (2) diversity-promoting module; and (3) scope restriction module. The proposed method improves the overall recommendation performance in terms of recall, and increases the diversity of the recommended candidates by 0.81\% compared to the baselines.
翻译:我们提出了一个简单而有效的方法来建议学生高质量和多样化的练习,我们的方法由三个关键部分组成:(1) 候选人产生模块;(2) 多样性促进模块;(3) 范围限制模块。拟议方法在召回方面改进了建议的总体业绩,并比基线增加推荐候选人的多样性,比基线增加0.81 ⁇ 。