notesum.ai
Published at November 16Exploring Feature-based Knowledge Distillation For Recommender System: A Frequency Perspective
cs.IR
cs.AI
Released Date: November 16, 2024
Authors: Zhangchi Zhu1, Wei Zhang1
Aff.: 1East China Normal University, Shanghai, China

| Backbone | Method | CiteULike | Gowalla | Yelp | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| R@10 | N@10 | R@20 | N@20 | R@10 | N@10 | R@20 | N@20 | R@10 | N@10 | R@20 | N@20 | ||
| BPRMF | Teacher | 0.0283 | 0.0155 | 0.0442 | 0.0198 | 0.1088 | 0.0907 | 0.1544 | 0.1053 | 0.0394 | 0.0253 | 0.0660 | 0.0339 |
| Student | 0.0177 | 0.0098 | 0.0284 | 0.0128 | 0.0946 | 0.0820 | 0.1329 | 0.0939 | 0.0348 | 0.0222 | 0.0586 | 0.0299 | |
| CD | 0.0239 | 0.0131 | 0.0347 | 0.0158 | 0.0979 | 0.0855 | 0.1389 | 0.0977 | 0.0370 | 0.0236 | 0.0608 | 0.0310 | |
| RRD | 0.0251 | 0.0135 | 0.0362 | 0.0169 | 0.0977 | 0.0861 | 0.1395 | 0.0987 | 0.0362 | 0.0230 | 0.0626 | 0.0319 | |
| UnKD | 0.0242 | 0.0129 | 0.0348 | 0.0160 | 0.0981 | 0.0860 | 0.1401 | 0.0979 | 0.0366 | 0.0228 | 0.0601 | 0.0312 | |
| HTD | 0.0235 | 0.0127 | 0.0337 | 0.0152 | 0.0975 | 0.0857 | 0.1379 | 0.0970 | 0.0360 | 0.0231 | 0.0600 | 0.0309 | |
| DE | 0.0212 | 0.0119 | 0.0331 | 0.0147 | 0.0969 | 0.0847 | 0.1372 | 0.0971 | 0.0355 | 0.0227 | 0.0598 | 0.0305 | |
| FitNet | 0.0199 | 0.0108 | 0.0326 | 0.0140 | 0.0963 | 0.0841 | 0.1352 | 0.0967 | 0.0355 | 0.0226 | 0.0599 | 0.0301 | |
| FreqD | 0.0282 | 0.0154 | 0.0428 | 0.0194 | 0.1056 | 0.0902 | 0.1494 | 0.1039 | 0.0398 | 0.0257 | 0.0669 | 0.0344 | |
| Improv.b | 12.35% | 14.07% | 18.23% | 14.79% | 7.64% | 4.76% | 6.64% | 5.26% | 7.57% | 8.90% | 6.87% | 7.84% | |
| p-value | 7.24e-5 | 4.18e-4 | 3.92e-5 | 1.71e-4 | 3.88e-4 | 9.91e-3 | 4.07e-3 | 8.62e-3 | 3.72e-4 | 8.28e-5 | 3.88e-4 | 7.62e-4 | |
| LightGCN | Teacher | 0.0296 | 0.0160 | 0.0461 | 0.0205 | 0.1236 | 0.1035 | 0.1730 | 0.1190 | 0.0432 | 0.0276 | 0.0716 | 0.0367 |
| Student | 0.0215 | 0.0113 | 0.0344 | 0.0148 | 0.1098 | 0.0928 | 0.1550 | 0.1069 | 0.0363 | 0.0235 | 0.0621 | 0.0308 | |
| CD | 0.0234 | 0.0125 | 0.0354 | 0.0161 | 0.1132 | 0.0951 | 0.1592 | 0.1100 | 0.0385 | 0.0247 | 0.0669 | 0.0342 | |
| RRD | 0.0247 | 0.0125 | 0.0359 | 0.0158 | 0.1142 | 0.0969 | 0.1627 | 0.1109 | 0.0391 | 0.0245 | 0.0671 | 0.0338 | |
| UnKD | 0.0233 | 0.0122 | 0.0353 | 0.0157 | 0.1138 | 0.0967 | 0.1622 | 0.1112 | 0.0390 | 0.0242 | 0.0658 | 0.0329 | |
| HTD | 0.0231 | 0.0120 | 0.0352 | 0.0154 | 0.1139 | 0.0951 | 0.1589 | 0.1102 | 0.0375 | 0.0245 | 0.0653 | 0.0330 | |
| DE | 0.0229 | 0.0119 | 0.0349 | 0.0155 | 0.1111 | 0.0949 | 0.1578 | 0.1097 | 0.0369 | 0.0242 | 0.0641 | 0.0319 | |
| FitNet | 0.0220 | 0.0118 | 0.0350 | 0.0151 | 0.1103 | 0.0939 | 0.1571 | 0.1088 | 0.0368 | 0.0238 | 0.0633 | 0.0321 | |
| FreqD | 0.0263 | 0.0134 | 0.0384 | 0.0171 | 0.1198 | 0.1020 | 0.1712 | 0.1175 | 0.0411 | 0.0257 | 0.0702 | 0.0359 | |
| Improv.b | 6.48% | 7.20% | 6.96% | 6.21% | 4.90% | 5.26 | 5.22% | 5.67% | 5.12% | 4.05% | 4.62% | 4.97% | |
| p-value | 2.24e-3 | 8.72e-4 | 1.26e-3 | 3.88e-3 | 1.27e-3 | 5.82e-4 | 2.97e-3 | 3.18e-3 | 1.02e-5 | 7.17e-3 | 3.82e-4 | 6.97e-4 | |
| SimpleX | Teacher | 0.0343 | 0.0191 | 0.0508 | 0.0236 | 0.1184 | 0.0943 | 0.1750 | 0.1122 | 0.0469 | 0.0303 | 0.0778 | 0.0402 |
| Student | 0.0290 | 0.0162 | 0.0426 | 0.0199 | 0.1046 | 0.0855 | 0.1524 | 0.1006 | 0.0382 | 0.0241 | 0.0658 | 0.0330 | |
| CD | 0.0319 | 0.0170 | 0.0462 | 0.0213 | 0.1092 | 0.0902 | 0.1621 | 0.1071 | 0.0425 | 0.0271 | 0.0702 | 0.0361 | |
| RRD | 0.0328 | 0.0175 | 0.0478 | 0.0219 | 0.1101 | 0.0893 | 0.1615 | 0.1059 | 0.0435 | 0.0279 | 0.0717 | 0.0371 | |
| UnKD | 0.0326 | 0.0175 | 0.0459 | 0.0223 | 0.1081 | 0.0887 | 0.1607 | 0.1061 | 0.0431 | 0.0287 | 0.0713 | 0.0369 | |
| HTD | 0.0321 | 0.0172 | 0.0462 | 0.0215 | 0.1089 | 0.0883 | 0.1599 | 0.1057 | 0.0427 | 0.0278 | 0.0690 | 0.0358 | |
| DE | 0.0313 | 0.0165 | 0.0449 | 0.0203 | 0.1073 | 0.0869 | 0.1567 | 0.1042 | 0.0409 | 0.0269 | 0.0671 | 0.0349 | |
| FitNet | 0.0305 | 0.0167 | 0.0434 | 0.0205 | 0.1064 | 0.0862 | 0.1558 | 0.1031 | 0.0398 | 0.0268 | 0.0667 | 0.0341 | |
| FreqD | 0.0341 | 0.0187 | 0.0507 | 0.0236 | 0.1171 | 0.0939 | 0.1739 | 0.1110 | 0.0461 | 0.0299 | 0.0758 | 0.0392 | |
| Improv.b | 3.96% | 6.86% | 6.07% | 5.83% | 6.36% | 4.10% | 7.28% | 3.64% | 5.98% | 4.18% | 5.72% | 5.66% | |
| p-value | 1.2e-2 | 7.92e-5 | 2.77e-4 | 3.28e-3 | 4.28e-5 | 2.77e-3 | 9.62e-5 | 1.83e-2 | 3.82e-3 | 7.28e-3 | 9.52e-4 | 2.44e-5 | |