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.

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General Data Counts

part train valid test
  Users Items Ratings Users Items Ratings Users Items Ratings
category                  
Movies_and_TV 650 k 193 k 7.09 M 72.6 k 57.6 k 205 k 53.7 k 46.7 k 146 k
Patio_Lawn_and_Garden 395 k 112 k 2.55 M 185 k 73.7 k 432 k 152 k 69.6 k 462 k
Tools_and_Home_Improvement 807 k 235 k 6.04 M 354 k 138 k 834 k 303 k 135 k 1.02 M
Video_Games 91.6 k 23.0 k 737 k 15.7 k 7.62 k 34.5 k 14.0 k 7.67 k 43.2 k
Grocery_and_Gourmet_Food 382 k 122 k 2.99 M 172 k 74.7 k 517 k 138 k 65.8 k 438 k
Arts_Crafts_and_Sewing 183 k 78.9 k 1.38 M 68.9 k 46.2 k 193 k 57.5 k 41.6 k 211 k
Beauty_and_Personal_Care 678 k 168 k 4.84 M 282 k 100 k 774 k 255 k 103 k 1.01 M
Cell_Phones_and_Accessories 367 k 94.6 k 2.21 M 126 k 33.7 k 239 k 112 k 33.2 k 304 k
Clothing_Shoes_and_Jewelry 2.39 M 617 k 16.8 M 1.19 M 303 k 3.05 M 1.01 M 296 k 3.26 M
Musical_Instruments 54.5 k 22.8 k 428 k 15.7 k 11.4 k 41.3 k 13.2 k 10.5 k 42.6 k
Sports_and_Outdoors 394 k 140 k 2.87 M 117 k 61.1 k 260 k 101 k 60.2 k 344 k
Automotive 600 k 248 k 4.82 M 249 k 143 k 649 k 206 k 128 k 605 k
Home_and_Kitchen 2.80 M 638 k 21.4 M 1.32 M 367 k 3.26 M 1.11 M 343 k 3.55 M
Toys_and_Games 408 k 137 k 3.11 M 122 k 67.5 k 307 k 104 k 67.7 k 440 k
CDs_and_Vinyl 123 k 88.5 k 1.50 M 11.6 k 16.0 k 31.1 k 7.59 k 12.3 k 21.2 k
Baby_Products 142 k 30.8 k 1.07 M 27.8 k 12.3 k 74.2 k 22.7 k 13.2 k 99.5 k
Industrial_and_Scientific 46.3 k 21.6 k 298 k 17.9 k 11.8 k 44.1 k 17.4 k 12.2 k 70.9 k
Office_Products 211 k 65.9 k 1.44 M 65.5 k 33.1 k 141 k 60.1 k 34.3 k 219 k
Books 766 k 472 k 8.73 M 144 k 106 k 426 k 108 k 85.3 k 328 k
Kindle_Store 872 k 403 k 13.8 M 232 k 165 k 1.27 M 192 k 152 k 1.04 M
Software 144 k 17.3 k 1.22 M 12.8 k 4.92 k 35.4 k 7.81 k 3.80 k 19.4 k
Health_and_Household 762 k 152 k 5.44 M 335 k 92.8 k 822 k 288 k 93.5 k 916 k
Pet_Supplies 560 k 96.7 k 4.14 M 226 k 56.6 k 552 k 190 k 55.5 k 588 k
Electronics 1.60 M 329 k 13.1 M 556 k 132 k 1.16 M 470 k 124 k 1.22 M