Recommendation on AliExpress User Logs
9.61Hit Rate@1SIGMA (SID1ID → SID1ID)
Evaluation results
| Method | Links | ||||
|---|---|---|---|---|---|
| SIGMA (SID1ID → SID1ID)Mapping=SID1ID→SID1ID2026.02 | 9.61 | 24.73 | 33.76 | 43.05 | |
| SIGMA (SID4ID→SID1ID)Mapping=SID4ID→SID1ID2026.02 | 9.5 | 24.89 | 33.37 | 42.77 | |
| SIGMA (SID1ID → SID1ID) w/o APF (Top- 1st Prefix)Mapping=SID1ID→SID1ID, APF=Excluded2026.02 | 9.31 | 22.82 | 30.18 | 37.73 | |
| SIGMA (SID1ID → SID1ID) w/o SID Prefix Hard NegativeMapping=SID1ID→SID1ID, SID Prefix Hard Negative=Excluded2026.02 | 9.03 | 23.79 | 32.4 | 41.34 | |
| SIGMA (SID4ID→SID2ID)Mapping=SID4ID→SID2ID2026.02 | 8.91 | 21.33 | 28.43 | 36.02 | |
| SIGMA (SID1ID → SID1ID) with 10K Hard NegativesMapping=SID1ID→SID1ID, Number of Hard Negatives=10K2026.02 | 8.43 | 22.87 | 31.7 | 40.86 | |
| SIGMA (SID1ID → SID1ID) w/o Pre-trained Item EmbMapping=SID1ID→SID1ID, Pre-trained Item Emb=Excluded2026.02 | 8.13 | 21.82 | 30.24 | 39.11 | |
| GR (SID)Tokenization=SID2026.02 | 8.01 | 16.17 | 22.41 | 26.41 | |
| SIGMA (SID1ID → SID1ID) w/o Semantic GroundingMapping=SID1ID→SID1ID, Semantic Grounding=Excluded2026.02 | 7.8 | 19.1 | 25.85 | 33.24 | |
| GR (ID)Tokenization=ID2026.02 | 7.31 | 20.15 | 28.98 | 37.37 | |
| Online Model2026.02 | 6.25 | 15.16 | 21.32 | 30.06 |