Research Article
From Community Detection to Mentor Selection in Rating-Free Collaborative Filtering
Table 1
Settingup of the communities of the MovieLens dataset.
| Way of selecting mentors | Avg number of mentors | Lower quartile | Median | Upper quartile |
| Whole set of connected neigh. | 165 | 7 | 89 | 313 |
| Algorithm LCD | 240 | 12 | 387 | 434 |
| Algorithm UC-LCD | 99 | 1 | 30 | 190 |
| Algorithm F-LCD (with = 0.5) | 48 | 1 | 2 | 80 |
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