Sequential Recommendation on Amazon Reviews 8 Domains
89.4NDCG@10 (Avg)MergeRec (Domain-wise)
Evaluation results
| Method | Links | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| MergeRec (Domain-wise)backbone=RecFormer-large2026.01 | 89.4 | 96.27 | 84.65 | 80.68 | 78.21 | 94.07 | 98.97 | 88.13 | 90.48 | |
| MergeRec (Layer-wise)backbone=RecFormer-large2026.01 | 88.62 | 93.4 | 85.08 | 78.27 | 77.58 | 94.8 | 99.58 | 89.95 | 90.66 | |
| TIESbackbone=RecFormer-large2026.01 | 87.64 | 94.09 | 81.66 | 80.6 | 82.07 | 92.36 | 96.49 | 83.51 | 76.81 | |
| MergeRec (Layer-wise)backbone=BLaIR-large2026.01 | 86.65 | 87.64 | 88.94 | 79.21 | 74.91 | 91.43 | 104.19 | 87.27 | 79.87 | |
| MergeRec (Domain-wise)backbone=RecFormer-base2026.01 | 86.07 | 87.31 | 76.54 | 79.14 | 76.87 | 94.5 | 100.48 | 80.36 | 84.97 | |
| Weight Averagingbackbone=RecFormer-large2026.01 | 85.84 | 86.37 | 81.64 | 76.44 | 74.6 | 94.63 | 98.7 | 91.35 | 88.87 | |
| TIESbackbone=BLaIR-large2026.01 | 85.74 | 85.71 | 87.92 | 76.38 | 83.56 | 89.96 | 97.93 | 90.85 | 72.04 | |
| Task Arithmeticbackbone=RecFormer-large2026.01 | 85.7 | 93.6 | 80 | 77.58 | 77.38 | 91.6 | 94.56 | 81.75 | 77.75 | |
| TIESbackbone=RecFormer-base2026.01 | 85.6 | 87.16 | 79.61 | 76.52 | 81.25 | 91.95 | 97.59 | 80.72 | 80.11 | |
| MergeRec (Layer-wise)backbone=RecFormer-base2026.01 | 85.37 | 86.18 | 77.32 | 77.77 | 75.39 | 93.82 | 101 | 81.55 | 83.87 | |
| MergeRec (Domain-wise)backbone=BLaIR-large2026.01 | 84.46 | 86.73 | 85.69 | 78.68 | 72.36 | 87.45 | 100.83 | 86.61 | 77.22 | |
| Task Arithmeticbackbone=RecFormer-base2026.01 | 84.08 | 86.47 | 75.99 | 76.05 | 76.37 | 91.85 | 99.52 | 78.08 | 75.53 | |
| Weight Averagingbackbone=RecFormer-base2026.01 | 83.15 | 82.88 | 76.42 | 75.67 | 70.29 | 92.37 | 99.68 | 82.7 | 86.2 | |
| Joint Learningbackbone=BLaIR-large2026.01 | 81.67 | 81 | 80.58 | 85.57 | 75.84 | 92.12 | 71.85 | 85.25 | 97.07 | |
| Weight Averagingbackbone=BLaIR-large2026.01 | 81.5 | 83.19 | 83.57 | 71.84 | 67.74 | 90.68 | 98.42 | 84.7 | 76.31 | |
| MergeRec (Layer-wise)backbone=BLaIR-base2026.01 | 79.18 | 81.23 | 84.3 | 66.94 | 70.26 | 81.88 | 93.35 | 81.73 | 77.47 | |
| Joint Learningbackbone=BLaIR-base2026.01 | 78.48 | 79.94 | 97.16 | 79.19 | 67.59 | 88.03 | 68 | 92.07 | 92.08 | |
| MergeRec (Domain-wise)backbone=BLaIR-base2026.01 | 78.3 | 81.33 | 81.78 | 65.59 | 70.51 | 78.22 | 92.14 | 79.46 | 78.36 | |
| Weight Averagingbackbone=BLaIR-base2026.01 | 78.13 | 78.59 | 85.53 | 67.01 | 64.7 | 85.65 | 94.62 | 82.03 | 75.85 | |
| Joint Learningbackbone=RecFormer-large2026.01 | 75.76 | 72.09 | 75.48 | 66.5 | 66.67 | 86.94 | 87.67 | 85.34 | 78.6 | |
| TIESbackbone=BLaIR-base2026.01 | 74.72 | 72.17 | 73.04 | 65.61 | 78.62 | 71.78 | 82.47 | 81.81 | 73.44 | |
| Joint Learningbackbone=RecFormer-base2026.01 | 73.05 | 67.41 | 75.48 | 76.13 | 66.69 | 82.75 | 72.12 | 69.55 | 87.62 | |
| Task Arithmeticbackbone=BLaIR-large2026.01 | 73 | 73.33 | 77.37 | 57.23 | 66.13 | 81.75 | 89.62 | 75.4 | 65.31 | |
| AdaMerging (Domain-wise)backbone=RecFormer-base2026.01 | 71.17 | 75.47 | 55.19 | 60.35 | 56.45 | 71.09 | 90.67 | 67.83 | 87.15 | |
| AdaMerging (Layer-wise)backbone=BLaIR-large2026.01 | 70.67 | 74.1 | 69.21 | 66.94 | 54.57 | 80.67 | 79.05 | 70.79 | 77.29 | |
| Zero-shotbackbone=RecFormer-base2026.01 | 67.52 | 63.59 | 61.57 | 55.88 | 52.63 | 69.33 | 92.79 | 70.75 | 81.44 | |
| AdaMerging (Domain-wise)backbone=RecFormer-large2026.01 | 67.29 | 77 | 56.84 | 61.87 | 56.92 | 55.66 | 82.95 | 56.31 | 69.72 | |
| AdaMerging (Layer-wise)backbone=RecFormer-large2026.01 | 64.96 | 71.01 | 51.7 | 53.68 | 54.66 | 62.19 | 81.38 | 69.86 | 69.99 | |
| AdaMerging (Layer-wise)backbone=RecFormer-base2026.01 | 61.61 | 60.94 | 32.01 | 52.35 | 51.36 | 64.14 | 82.6 | 64.32 | 79.22 | |
| AdaMerging (Domain-wise)backbone=BLaIR-large2026.01 | 60.21 | 68.38 | 58.18 | 57.61 | 42.43 | 56.16 | 72.01 | 75.84 | 62.5 | |
| AdaMerging (Layer-wise)backbone=BLaIR-base2026.01 | 57.91 | 56.9 | 56.93 | 53.6 | 44.83 | 49.51 | 77.66 | 69.2 | 65.29 | |
| Task Arithmeticbackbone=BLaIR-base2026.01 | 55.37 | 50.11 | 51.82 | 55.54 | 52.3 | 58.8 | 66.56 | 49.09 | 51.86 | |
| Zero-shotbackbone=RecFormer-large2026.01 | 53.55 | 65.05 | 50.33 | 34.05 | 31.26 | 40.96 | 82.63 | 61.27 | 63.58 | |
| AdaMerging (Domain-wise)backbone=BLaIR-base2026.01 | 50.28 | 51.53 | 49.02 | 41.46 | 35.38 | 43.17 | 66.06 | 68.61 | 69.18 | |
| Zero-shotbackbone=BLaIR-base2026.01 | 33.06 | 32.86 | 33.22 | 23.98 | 20.8 | 40.87 | 45.76 | 34.05 | 40.78 | |
| Zero-shotbackbone=BLaIR-large2026.01 | 26.85 | 27.51 | 27.83 | 18.08 | 14.22 | 41.96 | 32.15 | 28.46 | 38.78 |