Research Article

Effect of Collaborative Recommender System Parameters: Common Set Cardinality and the Similarity Measure

Table 3

Some statistics of 1 million MovieLens dataset.

CategorySpecificationsNumber of ratingsNumber of usersPercentageTotal percentage
Ratings rangeMean range

C11565130.21520.596
C2125256150.2483
C31>50013068680.1325

C1227595218.625821.2582
C221428755809.6026
C32>5004092591833.0298

C135127259742.996778.1457
C23137292191831.7550
C33>5001463902053.3940