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Retrieval on MS MARCO (dev)

0.401MRR@10ERNIE-Search
0.153480.217740.2820.34626Mar 18, 2019May 11, 2020Jul 6, 2021Aug 31, 2022Oct 25, 2023Dec 19, 2024Feb 13, 2026

Evaluation results

MethodLinks
ERNIE-SearchPLM (Size)=ERNIE_base, Teacher (Size)=ERNIE_large, Co-Training=true2022.060.401—0.877———
R2ANKER (Ours)PLM (Size)=coCondenser, Teacher (Size)=R2ANKER_base, Co-Training=false2022.060.4—0.876———
COT-MAERep type=dense, Pre-training=true, Distillation=false, Target Corpus=false, Supervised=true2023.020.3990.985————
ColBERTv2Retriever Type=Dense Retriever2024.110.3970.984————
ColBERTv2Rep type=mul-vec, Pre-training=false, Distillation=true, Target Corpus=false, Supervised=true2023.020.3970.984————
AR2PLM (Size)=coCondenser, Teacher (Size)=ERNIE_large, Co-Training=true2022.060.395—0.878———
DRAGONRep type=dense, Pre-training=false, Distillation=true, Target Corpus=false, Supervised=true2023.020.3930.985————
DRAGON-QRep type=dense, Pre-training=false, Distillation=true, Target Corpus=false, Supervised=true2023.020.3910.988————
DRAGON+Rep type=dense, Pre-training=true, Distillation=true, Target Corpus=false, Supervised=true2023.020.390.986————
SPLADE++Rep type=sparse, Pre-training=true, Distillation=true, Target Corpus=false, Supervised=true2023.020.3890.982————
RocketQAv2Retriever Type=Dense Retriever2024.110.3880.981————
RocketQAv2PLM (Size)=ERNIE_base, Teacher (Size)=ERNIE_base, Co-Training=true2022.060.388—0.862———
GTR-XXLRep type=dense, Pre-training=true, Distillation=true, Target Corpus=false, Supervised=true2023.020.3880.99————
RocketQAv2Rep type=dense, Pre-training=false, Distillation=true, Target Corpus=false, Supervised=true2023.020.3880.981————
SPLADE-v3-DistilBERTRetriever Type=Sparse Retriever2024.110.387—————
coCondenserRep type=dense, Pre-training=true, Distillation=false, Target Corpus=false, Supervised=true2023.020.3860.984————
CoCondenserRetriever Type=Dense Retriever2024.110.3820.984————
coCondenserPLM (Size)=BERT_base, Co-Training=false2022.060.382—————
CL-DRDRep type=dense, Pre-training=false, Distillation=true, Target Corpus=false, Supervised=true2023.020.3810.979————
DRAGON-SRep type=dense, Pre-training=false, Distillation=true, Target Corpus=false, Supervised=true2023.020.3810.983————
PAIRPLM (Size)=ERNIE_base, Co-Training=false2022.060.379—0.864———
SPLADE-v3-DocRetriever Type=Inference-free Sparse Retriever2024.110.378—————
Our ModelRetriever Type=Inference-free Sparse Retriever, Evaluated by Current Authors=true2024.110.3780.975————
RocketQARetriever Type=Dense Retriever2024.110.370.979————
RocketQAPLM (Size)=ERNIE_base, Teacher (Size)=ERNIE_base, Co-Training=false2022.060.37—0.855———
DistilSPLADE-maxRetriever Type=Sparse Retriever2024.110.3680.979————
CondenserPLM (Size)=BERT_base, Co-Training=false2022.060.366—————
SPLADE-doc-distillRetriever Type=Inference-free Sparse Retriever, Evaluated by Current Authors=true2024.110.3650.969————
BERT2019.030.365—————
ColBERTPLM (Size)=BERT_base, Co-Training=false2022.060.36—0.829———
TCT-ColBERTRetriever Type=Dense Retriever2024.110.3590.97————
COCO-DRRep type=dense, Pre-training=true, Distillation=false, Target Corpus=true, Supervised=true2023.020.3580.979————
RetroMAEFine-tuning strategy=DPR2022.050.35530.9763—0.36650.63560.8922
COILPLM (Size)=BERT_base, Co-Training=false2022.060.355—————
RetroMAERep type=dense, Pre-training=true, Distillation=false, Target Corpus=false, Supervised=true2023.020.3540.975————
TAS-BRetriever Type=Dense Retriever2024.110.3470.978————
ContrieverRep type=dense, Pre-training=true, Distillation=false, Target Corpus=false, Supervised=true2023.020.3410.979————
ME-BERTPLM (Size)=BERT_large, Co-Training=false2022.060.338—————
CondenserFine-tuning strategy=DPR2022.050.33570.9683—0.34710.60820.877
ANCERetriever Type=Dense Retriever2024.110.330.959————
ANCEInput Representation=FirstP2020.070.330.959————
ANCEPLM (Size)=RoBERTa_base, Co-Training=false2022.060.33—————
SEEDFine-tuning strategy=DPR2022.050.32640.9539—0.33740.59130.8535
SPLADE-docRetriever Type=Inference-free Sparse Retriever2024.110.3220.946————
DiffCSEFine-tuning strategy=DPR2022.050.32020.9607—0.33110.58320.8561
SimCSEFine-tuning strategy=DPR2022.050.31930.9699—0.33070.59070.8653
LaPraDoRFine-tuning strategy=DPR2022.050.31910.9602—0.33070.58330.8537
DeBERTaFine-tuning strategy=DPR2022.050.31860.9654—0.33040.58240.8625
BERTFine-tuning strategy=DPR2022.050.3170.9598—0.32780.58010.857
DPR-PAQPLM (Size)=BERT_base, Co-Training=false2022.060.314—————
ROBERTaFine-tuning strategy=DPR2022.050.31360.9579—0.32580.56380.8478
DPR (BM25 + Rand Neg)2020.070.3110.952————
DPR-PAQPLM (Size)=RoBERTa_base, Co-Training=false2022.060.311—————
BM25 -> BM25 + Rand2020.070.3060.939————
LSEPairObjective=LSEPair2026.020.3057————0.831
Rand1LHObjective=Rand1LH2026.020.3044————0.8202
SingleLHObjective=SingleLH2026.020.2991————0.8154
BM25 Neg2020.070.2990.928————
SumMargLHObjective=SumMargLH2026.020.2979————0.8076
Ensemble of 8 CKNRMConfiguration=Ensemble, Model Count=82019.030.29—————
JointLHObjective=JointLH2026.020.2822————0.8309
BM25 -> Rand2020.070.280.948————
SparTermRetriever Type=Sparse Retriever2024.110.2790.925————
BM25 -> NCE Neg2020.070.2790.942————
IRNetDescription=proprietary deep neural model2019.030.278—————
doc2query-T5Retriever Type=Inference-free Sparse Retriever2024.110.2770.947————
docTTTTTqueryPLM (Size)=T5_base, Co-Training=false2022.060.277—0.756———
Rand Neg2020.070.2610.949————
NCE Neg2020.070.2560.943————
Duet v2Configuration=Ensemble, Model Count=82019.030.252—————
Single CKNRMConfiguration=Single model2019.030.247—————
DeepCTRetriever Type=Inference-free Sparse Retriever2024.110.2430.913————
Duet v2Configuration=Single model2019.030.243—————
Best DeepCT2020.070.243—————
DeepCTPLM (Size)=BERT_base, Co-Training=false2022.060.243—0.69———
BM252020.070.240.814————
Best TREC Trad Retrieval2020.070.24—————
doc2queryPLM (Size)=BERT_base, Co-Training=false2022.060.215—0.644———
Duet v2Configuration=Single model, Modification=w/o MLP to combine local and distributed scores2019.030.208—————
BM25Co-Training=false2022.060.187—0.592———
BM25Retriever Type=Inference-free Sparse Retriever2024.110.1840.853————
Duet v2Configuration=Single model, Modification=w/ Tanh non-linearity (instead of ReLU)2019.030.179—————
BM252019.030.165—————
Duet v2Configuration=Single model, Modification=w/o IDF weighting for interaction matrix2019.030.163—————