Table 4 Examples of four typical topics and their probabilities over words in the Data Structure course. These representative words, including topic words (not underlined) and emotion words (underlined) have higher probabilities. (+) denotes that the topic’s overall emotion is positive. The probability value below (+) represents the average probability of each topic appearing in the next semester of the course
From: Topic tracking model for analyzing student-generated posts in SPOC discussion forums
Course | Topics | Topic Label | Words | Prob. | Words | Prob. |
|---|---|---|---|---|---|---|
Data Structure | Topic 9 (+) (0.054) | Application of data structure | 结构/structure | 0.0397 | 数据/data | 0.0371 |
复杂/complicated | 0.0122 | 设计/design | 0.0106 | |||
程序/program | 0.0101 | 人才/talents | 0.0090 | |||
信息/information | 0.0080 | 培养/cultivate | 0.0080 | |||
正确/right | 0.0042 | 不清楚/unclear | 0.0011 | |||
Topic 14 (+) (0.051) | Programming implementation | 串/string | 0.0943 | 位置/index | 0.0615 | |
理解/understand | 0.0267 | 语句/statement | 0.0143 | |||
循环/loop | 0.0123 | 输出/printf | 0.0123 | |||
代码/code | 0.0123 | 错/wrong | 0.0102 | |||
掌握/master | 0.0080 | 容易/easy | 0.0101 | |||
Topic 16 (+) (0.070) | Method of data query | 树/tree | 0.0293 | 表/list | 0.0235 | |
链/chain | 0.0141 | 查找/search | 0.0141 | |||
排序/sort | 0.0118 | 遍历/traverse | 0.0106 | |||
路径/path | 0.0010 | 插入/insert | 0.0094 | |||
理解/understand | 0.0059 | 冲突/conflict | 0.0047 | |||
Topic 17 (+) (0.054) | Method of data storage | 指针/pointer | 0.0212 | 树/tree | 0.0151 | |
表/list | 0.0151 | 链/chain | 0.0141 | |||
结构/structure | 0.0131 | 元素/code | 0.0123 | |||
队/queue | 0.0081 | 存储/store | 0.0081 | |||
错误/error | 0.0051 | 确定/confirm | 0.0020 |