Table 2 Total and average values of each feature extraction approach selected for the ML-100k and HetRec2011-ML2k databases
From: Exploiting feature extraction techniques on users’ reviews for movies recommendation
Total | Average occurrence | ||
|---|---|---|---|
ML-100k | Heuristic terms | 3085 | 223.32 |
Classification terms | 8433 | 401.07 | |
Heuristic aspects | 78 | 22.59 | |
Hierarchy aspects | 933 | 236.65 | |
HetRec ML | Heuristic terms | 33,618 | 840.89 |
Classification terms | 17,864 | 1469.43 | |
Heuristic aspects | 55 | 41.59 | |
Hierarchy aspects | 5428 | 2097.93 | |