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Table 1 Total and average values for each structured metadata for ML-100k and HetRec2011-ML2k databases

From: Exploiting feature extraction techniques on users’ reviews for movies recommendation

  Total Average occurrence
ML-100k Actors 44,178 44.15
  Directors 1016 1.06
  Genres 18 1.72
HetRec ML Actors 95,321 22.78
  Directors 4060 1.0
  Genres 20 2.04