Recommendation on ML1M
45.23NDCG@20Original
Evaluation results
| Method | Links | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OriginalBase Model=FedVAE, Attribute=Gender2025.11 | 45.23 | 52.34 | 82.83 | 36.3 | — | — | — | — | — | — | 78.03 | 44.1 | — | — | — | — | |
| OriginalBase Model=FedVAE, Attribute=Age2025.11 | 45.23 | 52.34 | 82.83 | 36.3 | — | — | — | — | — | — | 78.03 | 44.1 | — | — | — | — | |
| FedNCFEmbedding=P-RQ-VAE2025.12 | 44.13 | — | 78.28 | — | — | — | — | — | — | — | — | — | 39.75 | 60.91 | — | — | |
| FedNCFEmbedding=P-LoRA2025.12 | 43.97 | — | 78.28 | — | — | — | — | — | — | — | — | — | 39.52 | 60.72 | — | — | |
| FedAU2Base Model=FedVAE, Attribute=Age2025.11 | 43.88 | 50.38 | 82.48 | 34.52 | — | — | — | — | — | — | 76.33 | 42.43 | — | — | — | — | |
| PFedRecEmbedding=P-LoRA2025.12 | 43.88 | — | 78.25 | — | — | — | — | — | — | — | — | — | 39.48 | 61.35 | — | — | |
| FedAU2Base Model=FedVAE, Attribute=Gender2025.11 | 43.59 | 50.44 | 82.07 | 34.38 | — | — | — | — | — | — | 75.75 | 42.1 | — | — | — | — | |
| PFedRecEmbedding=P-RQ-VAE2025.12 | 43.55 | — | 77.84 | — | — | — | — | — | — | — | — | — | 38.89 | 59.4 | — | — | |
| FedNCFEmbedding=Full2025.12 | 43.08 | — | 78.11 | — | — | — | — | — | — | — | — | — | 38.8 | 61.29 | — | — | |
| OriginalBase Model=FedNCF, Attribute=Gender2025.11 | 42.96 | 48.65 | 82.33 | 33.17 | — | — | — | — | — | — | 76.57 | 41.6 | — | — | — | — | |
| OriginalBase Model=FedNCF, Attribute=Age2025.11 | 42.96 | 48.65 | 82.33 | 33.17 | — | — | — | — | — | — | 76.57 | 41.6 | — | — | — | — | |
| PFedRecEmbedding=Full2025.12 | 42.93 | — | 77.84 | — | — | — | — | — | — | — | — | — | 38.63 | 60.48 | — | — | |
| FedNCFEmbedding=P-Hash(S)2025.12 | 42.52 | — | 76.97 | — | — | — | — | — | — | — | — | — | 37.94 | 58.99 | — | — | |
| FedMFEmbedding=P-LoRA2025.12 | 42.42 | — | 76.6 | — | — | — | — | — | — | — | — | — | 37.98 | 59.79 | — | — | |
| PFedRecEmbedding=P-Hash(S)2025.12 | 42.26 | — | 77.17 | — | — | — | — | — | — | — | — | — | 37.09 | 56.9 | — | — | |
| PFedRecEmbedding=P-Hash2025.12 | 42.19 | — | 75.81 | — | — | — | — | — | — | — | — | — | 37.92 | 59.11 | — | — | |
| FedNCFEmbedding=P-Hash2025.12 | 41.57 | — | 76.66 | — | — | — | — | — | — | — | — | — | 36.89 | 58.43 | — | — | |
| FedMFEmbedding=C-LoRA2025.12 | 41.01 | — | 75.22 | — | — | — | — | — | — | — | — | — | 36.66 | 58.08 | — | — | |
| FedNCFEmbedding=C-LoRA2025.12 | 40.73 | — | 74.59 | — | — | — | — | — | — | — | — | — | 35.03 | 51.94 | — | — | |
| FedAU2Base Model=FedNCF, Attribute=Age2025.11 | 40.03 | 45 | 79.78 | 29.95 | — | — | — | — | — | — | 73.23 | 38.49 | — | — | — | — | |
| FedAU2Base Model=FedNCF, Attribute=Gender2025.11 | 39.45 | 44.41 | 79.17 | 29.44 | — | — | — | — | — | — | 72.09 | 37.78 | — | — | — | — | |
| FedMFEmbedding=Full2025.12 | 38.27 | — | 75.98 | — | — | — | — | — | — | — | — | — | 33.98 | 58.44 | — | — | |
| FedMFEmbedding=P-RQ-VAE2025.12 | 38.06 | — | 76.52 | — | — | — | — | — | — | — | — | — | 33.59 | 58.96 | — | — | |
| FedPerGNNEmbedding=C-LoRA2025.12 | 35.78 | — | 76.85 | — | — | — | — | — | — | — | — | — | 30.73 | 57.04 | — | — | |
| FedPerGNNEmbedding=P-RQ-VAE2025.12 | 35.58 | — | 77.84 | — | — | — | — | — | — | — | — | — | 30.1 | 56.35 | — | — | |
| APMBase Model=FedNCF, Attribute=Gender2025.11 | 35.56 | 38.12 | 74.14 | 25.22 | — | — | — | — | — | — | 66.53 | 33.77 | — | — | — | — | |
| APMBase Model=FedNCF, Attribute=Age2025.11 | 35.56 | 38.12 | 74.14 | 25.22 | — | — | — | — | — | — | 66.53 | 33.77 | — | — | — | — | |
| FedPerGNNEmbedding=P-Hash(S)2025.12 | 34.92 | — | 76.97 | — | — | — | — | — | — | — | — | — | 29.67 | 56.26 | — | — | |
| APMBase Model=FedVAE, Attribute=Gender2025.11 | 34.78 | 37.54 | 72.41 | 24.82 | — | — | — | — | — | — | 64.48 | 32.91 | — | — | — | — | |
| APMBase Model=FedVAE, Attribute=Age2025.11 | 34.78 | 37.54 | 72.41 | 24.82 | — | — | — | — | — | — | 64.48 | 32.91 | — | — | — | — | |
| FedPerGNNEmbedding=P-LoRA2025.12 | 34.62 | — | 75.81 | — | — | — | — | — | — | — | — | — | 29.36 | 55.15 | — | — | |
| FedPerGNNEmbedding=P-Hash2025.12 | 34.5 | — | 76.56 | — | — | — | — | — | — | — | — | — | 29.18 | 55.56 | — | — | |
| FedPerGNNEmbedding=Full2025.12 | 33.72 | — | 75.95 | — | — | — | — | — | — | — | — | — | 27.24 | 50.43 | — | — | |
| PFedRecEmbedding=C-LoRA2025.12 | 33.51 | — | 71.13 | — | — | — | — | — | — | — | — | — | 28.02 | 48.96 | — | — | |
| OriginalBackbone=Bert4Rec2026.01 | 33.06 | — | 71.52 | — | — | — | — | — | — | — | — | — | 27.9 | 51.11 | — | — | |
| DITaRBackbone=Bert4Rec2026.01 | 32.67 | — | 70.25 | — | — | — | — | — | — | — | — | — | 27.63 | 50.36 | — | — | |
| LIA2026.04 | 32.63 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
| MultVAE2026.04 | 32.27 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
| RetrainBackbone=Bert4Rec2026.01 | 31.54 | — | 69.02 | — | — | — | — | — | — | — | — | — | 26.66 | 49.75 | — | — | |
| Autoencoder2026.04 | 31.02 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
| MF2026.04 | 30.58 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
| OriginalBackbone=SASRec2026.01 | 29.08 | — | 61.54 | — | — | — | — | — | — | — | — | — | 24.49 | 43.29 | — | — | |
| UltraREBackbone=Bert4Rec2026.01 | 28.95 | — | 62.38 | — | — | — | — | — | — | — | — | — | 24.4 | 44.34 | — | — | |
| DITaRBackbone=SASRec2026.01 | 28.93 | — | 60.76 | — | — | — | — | — | — | — | — | — | 24.7 | 43.86 | — | — | |
| FedAU2Base Model=FedRAP, Attribute=Age2025.11 | 28.91 | 31.16 | 61.73 | 20.31 | — | — | — | — | — | — | 53.66 | 27.01 | — | — | — | — | |
| OriginalBackbone=GRU4Rec2026.01 | 28.76 | — | 60.25 | — | — | — | — | — | — | — | — | — | 24.4 | 42.88 | — | — | |
| SISABackbone=Bert4Rec2026.01 | 28.71 | — | 62.42 | — | — | — | — | — | — | — | — | — | 24.11 | 44.04 | — | — | |
| DITaRBackbone=GRU4Rec2026.01 | 28.54 | — | 59.78 | — | — | — | — | — | — | — | — | — | 24.48 | 43.69 | — | — | |
| RetrainBackbone=SASRec2026.01 | 28.29 | — | 59.88 | — | — | — | — | — | — | — | — | — | 24.06 | 43.11 | — | — | |
| RetrainBackbone=GRU4Rec2026.01 | 28.06 | — | 59.6 | — | — | — | — | — | — | — | — | — | 23.65 | 42.07 | — | — | |
| RecEraserBackbone=Bert4Rec2026.01 | 27.86 | — | 60.13 | — | — | — | — | — | — | — | — | — | 23.55 | 42.96 | — | — | |
| FedAU2Base Model=FedRAP, Attribute=Gender2025.11 | 27.63 | 30.87 | 57.11 | 20.07 | — | — | — | — | — | — | 52.52 | 26.55 | — | — | — | — | |
| OriginalBase Model=FedRAP, Attribute=Gender2025.11 | 27.4 | 29.93 | 57.84 | 19.4 | — | — | — | — | — | — | 51.84 | 25.98 | — | — | — | — | |
| OriginalBase Model=FedRAP, Attribute=Age2025.11 | 27.4 | 29.93 | 57.84 | 19.4 | — | — | — | — | — | — | 51.84 | 25.98 | — | — | — | — | |
| APMBase Model=FedRAP, Attribute=Gender2025.11 | 25.78 | 28.91 | 53.39 | 18.72 | — | — | — | — | — | — | 48.45 | 24.62 | — | — | — | — | |
| APMBase Model=FedRAP, Attribute=Age2025.11 | 25.78 | 28.91 | 53.39 | 18.72 | — | — | — | — | — | — | 48.45 | 24.62 | — | — | — | — | |
| UltraREBackbone=SASRec2026.01 | 25.26 | — | 53.48 | — | — | — | — | — | — | — | — | — | 21.2 | 37.32 | — | — | |
| RecEraserBackbone=SASRec2026.01 | 24.83 | — | 55.98 | — | — | — | — | — | — | — | — | — | 20.35 | 38.13 | — | — | |
| FedMFEmbedding=P-Hash2025.12 | 23.69 | — | 54.11 | — | — | — | — | — | — | — | — | — | 19.85 | 38.92 | — | — | |
| RecEraserBackbone=GRU4Rec2026.01 | 22.35 | — | 50.75 | — | — | — | — | — | — | — | — | — | 18.03 | 33.56 | — | — | |
| FedMFEmbedding=P-Hash(S)2025.12 | 20.37 | — | 48.36 | — | — | — | — | — | — | — | — | — | 16.69 | 33.79 | — | — | |
| FedNCFEmbedding=C-RQ-VAE2025.12 | 18.51 | — | 40.51 | — | — | — | — | — | — | — | — | — | 14.76 | 25.4 | — | — | |
| PFedRecEmbedding=C-RQ-VAE2025.12 | 17.7 | — | 47.73 | — | — | — | — | — | — | — | — | — | 12.88 | 28.48 | — | — | |
| FedPerGNNEmbedding=C-RQ-VAE2025.12 | 16.67 | — | 45.08 | — | — | — | — | — | — | — | — | — | 11.94 | 26.36 | — | — | |
| SISABackbone=SASRec2026.01 | 14.02 | — | 34.43 | — | — | — | — | — | — | — | — | — | 10.89 | 21.85 | — | — | |
| UltraREBackbone=GRU4Rec2026.01 | 13.81 | — | 30.12 | — | — | — | — | — | — | — | — | — | 11.04 | 19.07 | — | — | |
| FedPerGNNEmbedding=C-Hash(S)2025.12 | 12.94 | — | 37.68 | — | — | — | — | — | — | — | — | — | 7.99 | 18.01 | — | — | |
| FedNCFEmbedding=C-Hash(S)2025.12 | 12.85 | — | 40.78 | — | — | — | — | — | — | — | — | — | 8.52 | 23.92 | — | — | |
| FedPerGNNEmbedding=C-Hash2025.12 | 12.72 | — | 37.98 | — | — | — | — | — | — | — | — | — | 7.3 | 16.26 | — | — | |
| FedMFEmbedding=C-RQ-VAE2025.12 | 11.96 | — | 29.85 | — | — | — | — | — | — | — | — | — | 8.62 | 16.56 | — | — | |
| SISABackbone=GRU4Rec2026.01 | 11.1 | — | 26.82 | — | — | — | — | — | — | — | — | — | 8.18 | 15.23 | — | — | |
| PFedRecEmbedding=C-Hash2025.12 | 9.25 | — | 28.54 | — | — | — | — | — | — | — | — | — | 5.59 | 13.96 | — | — | |
| FedNCFEmbedding=C-Hash2025.12 | 8.88 | — | 23.13 | — | — | — | — | — | — | — | — | — | 6.44 | 13.28 | — | — | |
| PFedRecEmbedding=C-Hash(S)2025.12 | 8.75 | — | 21.47 | — | — | — | — | — | — | — | — | — | 6.19 | 11.21 | — | — | |
| FedMFEmbedding=C-Hash(S)2025.12 | 8.36 | — | 23.64 | — | — | — | — | — | — | — | — | — | 5.48 | 12.14 | — | — | |
| FedMFEmbedding=C-Hash2025.12 | 8.3 | — | 23.26 | — | — | — | — | — | — | — | — | — | 5.54 | 12.19 | — | — | |
| FUDLRTime (h)=1.292026.01 | 2.03 | 2.26 | 3.4 | 1.72 | 5.031 | 4.7276 | 32.78 | 24.86 | 16.81 | 20.19 | — | — | — | — | — | — | |
| BIGRecTime (h)=34.792026.01 | 2 | 2.2 | 3.36 | 1.67 | 5.0237 | 4.7246 | 32.56 | 24.76 | 16.44 | 20.02 | — | — | — | — | — | — | |
| ReweightingTime (h)=40.952026.01 | 1.63 | 1.8 | 2.96 | 1.31 | 5.4806 | 4.9093 | 45.29 | 28.83 | 15.02 | 19.56 | — | — | — | — | — | — | |
| RerankingTime (h)=1.122026.01 | 1.14 | 1.02 | 2.3 | 0.8 | 4.8443 | 4.8577 | 40.82 | 31.59 | 9.07 | 16.86 | — | — | — | — | — | — | |
| RWRRTime (h)=41.62026.01 | 0.96 | 0.84 | 2.14 | 0.6 | 5.2571 | 5.069 | 50.13 | 35.77 | 7.75 | 16.47 | — | — | — | — | — | — | |
| Atten-MixerMethod Category=Multi-Intent Methods2026.03 | — | 49.32 | — | 32.16 | — | — | — | — | — | — | — | — | — | — | 14.9 | 14.9 | |
| FPMCMethod Category=Single-Intent Methods2026.03 | — | 37.48 | — | 24.64 | — | — | — | — | — | — | — | — | — | — | 11.32 | 11.32 | |
| GCE-GNNMethod Category=Single-Intent Methods2026.03 | — | 47.48 | — | 30.44 | — | — | — | — | — | — | — | — | — | — | 13.12 | 13.12 | |
| HIDEMethod Category=Multi-Intent Methods2026.03 | — | 49.98 | — | 32.56 | — | — | — | — | — | — | — | — | — | — | 14.98 | 14.98 | |
| LLMGreenRecMethod Category=LLM-based Methods2026.03 | — | 61.1 | — | 43.91 | — | — | — | — | — | — | — | — | — | — | 25.5 | 25.5 | |
| MCPRNMethod Category=Multi-Intent Methods2026.03 | — | 47.88 | — | 31.57 | — | — | — | — | — | — | — | — | — | — | 14.34 | 14.34 | |
| MostPopMethod Category=Traditional Methods2026.03 | — | 0.7 | — | 0.53 | — | — | — | — | — | — | — | — | — | — | 0.04 | 0.04 | |
| NARMMethod Category=Single-Intent Methods2026.03 | — | 52.3 | — | 35.01 | — | — | — | — | — | — | — | — | — | — | 16.92 | 16.92 | |
| NIRMethod Category=LLM-based Methods2026.03 | — | 23.26 | — | 14.36 | — | — | — | — | — | — | — | — | — | — | 5.72 | 5.72 | |
| PO4ISRMethod Category=LLM-based Methods2026.03 | — | 55.1 | — | 38.1 | — | — | — | — | — | — | — | — | — | — | 20 | 20 | |
| SKNNMethod Category=Traditional Methods2026.03 | — | 36 | — | 25.3 | — | — | — | — | — | — | — | — | — | — | 12.7 | 12.7 | |
| STAMPMethod Category=Single-Intent Methods2026.03 | — | 50.78 | — | 33.67 | — | — | — | — | — | — | — | — | — | — | 15.84 | 15.84 |