2023 5-core

This section reports results for the 2023 Amazon Reviews data provided by UCSD, using their absolute-timestamp 5-core benchmark files. We have excluded data sets too small to be interesting (“All Beauty”, “Gift Cards”, and “Magazine Subscriptions”), as well as the large and nebulus “Unknown” category.

General Data Counts

part train valid test
  Users Items Ratings Users Items Ratings Users Items Ratings
category                  
Movies_and_TV 650.4 k 192.7 k 7.1 M 72.6 k 57.6 k 204.8 k 53.7 k 46.7 k 146.0 k
Patio_Lawn_and_Garden 394.5 k 112.0 k 2.5 M 185.3 k 73.7 k 432.0 k 151.6 k 69.6 k 461.8 k
Tools_and_Home_Improvement 807.3 k 234.8 k 6.0 M 354.0 k 138.2 k 833.9 k 302.7 k 135.0 k 1.0 M
Video_Games 91.6 k 23.0 k 736.8 k 15.7 k 7.6 k 34.5 k 14.0 k 7.7 k 43.2 k
Arts_Crafts_and_Sewing 182.7 k 78.9 k 1.4 M 68.9 k 46.2 k 192.8 k 57.5 k 41.6 k 210.8 k
Grocery_and_Gourmet_Food 381.8 k 121.7 k 3.0 M 172.0 k 74.7 k 516.5 k 137.5 k 65.8 k 437.7 k
Beauty_and_Personal_Care 677.6 k 167.6 k 4.8 M 281.5 k 100.2 k 773.6 k 255.2 k 103.4 k 1.0 M
Cell_Phones_and_Accessories 367.4 k 94.6 k 2.2 M 125.9 k 33.7 k 239.4 k 112.1 k 33.2 k 304.5 k
Clothing_Shoes_and_Jewelry 2.4 M 617.4 k 16.8 M 1.2 M 302.9 k 3.0 M 1.0 M 296.5 k 3.3 M
Musical_Instruments 54.5 k 22.8 k 428.0 k 15.7 k 11.4 k 41.3 k 13.2 k 10.5 k 42.6 k
Sports_and_Outdoors 393.5 k 139.6 k 2.9 M 116.7 k 61.1 k 260.3 k 100.7 k 60.2 k 344.0 k
Automotive 599.7 k 248.2 k 4.8 M 249.4 k 143.1 k 649.2 k 206.3 k 127.8 k 604.7 k
Home_and_Kitchen 2.8 M 638.4 k 21.4 M 1.3 M 366.7 k 3.3 M 1.1 M 343.4 k 3.6 M
Toys_and_Games 407.8 k 136.6 k 3.1 M 122.1 k 67.5 k 306.9 k 103.8 k 67.7 k 440.0 k
Baby_Products 141.9 k 30.8 k 1.1 M 27.8 k 12.3 k 74.2 k 22.7 k 13.2 k 99.5 k
CDs_and_Vinyl 122.6 k 88.5 k 1.5 M 11.6 k 16.0 k 31.1 k 7.6 k 12.3 k 21.2 k
Industrial_and_Scientific 46.3 k 21.6 k 297.9 k 17.9 k 11.8 k 44.1 k 17.4 k 12.2 k 70.9 k
Office_Products 211.3 k 65.9 k 1.4 M 65.5 k 33.1 k 140.7 k 60.1 k 34.3 k 218.8 k
Books 766.1 k 471.8 k 8.7 M 144.3 k 105.7 k 426.2 k 107.9 k 85.3 k 328.2 k
Kindle_Store 871.7 k 403.4 k 13.8 M 232.2 k 164.8 k 1.3 M 192.0 k 152.2 k 1.0 M
Software 144.1 k 17.3 k 1.2 M 12.8 k 4.9 k 35.4 k 7.8 k 3.8 k 19.4 k
Electronics 1.6 M 329.4 k 13.1 M 556.5 k 132.5 k 1.2 M 469.8 k 124.1 k 1.2 M
Health_and_Household 761.6 k 152.4 k 5.4 M 334.8 k 92.8 k 821.5 k 288.0 k 93.5 k 915.7 k
Pet_Supplies 559.5 k 96.7 k 4.1 M 225.8 k 56.6 k 551.7 k 190.1 k 55.5 k 588.1 k