Research Article
Design of Automatic Extraction Algorithm of Knowledge Points for MOOCs
Table 3
The results contrast.
| ā | The 1st level of | The 2nd level of | Index | knowledge points | knowledge points | ā | TF-IDF | AECKP | TF-IDF | AECKP |
| ExpertsMark | 66 | 66 | 258 | 258 | All | 80 | 80 | 250 | 250 | Correct | 31 | 48 | 121 | 193 | Precision | 47.0% | 72.7% | 46.9% | 74.8% | Recall | 38.8% | 60.0% | 48.4% | 77.2% | measures | 42.5% | 65.7% | 47.6% | 76.0% |
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