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Table 6 The evolution of topic content about programming implementation over time

From: Topic tracking model for analyzing student-generated posts in SPOC discussion forums

Course

Topic Label

Time Unit 5

9–10 week

Time Unit 7

13–14 week

Time Unit 8

15–16 week

Time Unit 9

17 week

Data Structure

Programming

implementation

(Topic 14)

串/string

串/string

空间/space.

位置/index

位置/index

语言/language

分配/allocation

出现/appear

出现/appear

出现/appear

串/string

第一次/first time

第一次/first time

位置/index

长度/length

字符/character

理解/understand

字符/character

size

串/string

字符/character

函数/function

元素/element

理解/understand

代码/code

java

length

线性/linear

过程/process

第一次/first time

执行/execute

代码/code

锻炼/exercise

输入/input

定义/definition

编写/compile

找到/find

变量/variable

连续/succession

表达式/expression