Course Concept Expansion in MOOCs with External Knowledge and Interactive Game
Table 2: MAP of different methods on datasets. (SH=8,α=0.4).
['[EMPTY]', '[BOLD] ZH-PSY', '[BOLD] ZH-DSA', '[BOLD] ZH-Avg', '[BOLD] EN-PSY', '[BOLD] EN-DSA', '[BOLD] EN-Avg']
We find that our method outperforms existing methods across all 4 datasets. The improvements are all statistically significant tested with bootstrap re-sampling with 95% confidence. For example, our whole model surpasses PageRank based method and SEISA by about 0.10 on the average of English courses. Further, we observe the performance in following aspects: