Table 3 Cosine similarity between some course items based on TF-IDF
From: Improved content recommendation algorithm integrating semantic information
Item ID | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
1 | 1.0 | 0.088 | 0.134 | 0.115 | 0.036 | 0.156 |
2 | 0.088 | 1.0 | 0.106 | 0.085 | 0.085 | 0.121 |
3 | 0.134 | 0.106 | 1.0 | 0.079 | 0.034 | 0.172 |
4 | 0.115 | 0.085 | 0.079 | 1.0 | 0.028 | 0.124 |
5 | 0.036 | 0.073 | 0.034 | 0.028 | 1.0 | 0.037 |
6 | 0.156 | 0.121 | 0.172 | 0.124 | 0.037 | 1.0 |