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Open-domain Question Answering on TriviaQA open (test)

73.3EMFiD-large++
30.6641.7352.863.87Nov 14, 2017Jul 4, 2018Feb 21, 2019Oct 12, 2019May 31, 2020Jan 18, 2021Sep 8, 2021

Evaluation results

MethodLinks
FiD-large++Model Category=Generative, #θ=848M2021.0973.3—
UnitedQA (Ens. E+G+G)Model Category=Generative, #θ=1.87B2021.0970.5—
R2-D2 (21M)#θ=1.29B2021.0969.9—
UnitedQA-EModel Category=Extractive, #θ=440M2021.0968.9—
UnitedQA-GModel Category=Generative, #θ=880M2021.0968.6—
Fusion-in-DecoderModel scale=large2020.0767.6—
FIDReader Type=Generative2020.0967.6—
FiD-largeModel Category=Generative, #θ=848M2021.0967.6—
R1-D1 (Generative)Model Category=Generative, #θ=848M2021.0965.4—
Fusion-in-DecoderModel scale=base2020.0765—
FiD-baseModel Category=Generative, #θ=333M2021.0965—
R1-D1 (Extractive)Model Category=Extractive, #θ=445M2021.0965—
Multi-Passage BERTBackbone=BERT-Large2019.0863.769.2
HAS-QA2019.0863.668.9
ColBERTModel Category=Extractive, #θ=440M2021.0963.2—
GARReader Type=Extractive2020.0962.7—
GARReader Type=Generative2020.0962.2—
Multi-Passage BERTBackbone=BERT-Base2019.086267.5
T5-1.1+SSMModel Category=Generative, #θ=11B2021.0961.6—
BERT-RC2019.086166.9
T5Reader Type=Generative2020.0960.5—
BM25 (ours)Reader Type=Extractive2020.0960.1—
BM25+BERTModel Category=Extractive, #θ=110M2021.0960.1—
BM25 (ours)Reader Type=Generative2020.0958.6—
BM25+SSGModel Category=Generative, #θ=406M2021.0958.6—
DPR2020.0757.9—
DPRReader Type=Extractive2020.0957.9—
ANCE + ReaderReader=DPR Reader2020.0757.5—
DPR + BM25retrieval=DPR + BM252020.0757—
RDRModel Category=Extractive, #θ=110M2021.0957—
DPR2020.0756.8—
DPRModel Category=Extractive, #θ=220M2021.0956.8—
RAGModel Category=Generative, #θ=516M2021.0956.8—
RAG-Sequence2020.0756.1—
RAG2020.0756.1—
RAGReader Type=Generative2020.0956.1—
Graph RetrieverReader Type=Extractive2020.0956—
Graph RetrieverModel Category=Extractive, #θ=110M2021.0956—
Graph Retriever2020.0755.8—
RAG-Token2020.0755.2—
Discrete Hard EM2019.0950.9—
Hard EM2020.0750.9—
Hard EMReader Type=Extractive2020.0950.9—
Hard EMModel Category=Extractive, #θ=110M2021.0950.9—
Full Re-Rankercombination=three different re-rankers2017.1150.657.3
Coverage-Based Re-Ranker2017.115057
Strength-Based Re-Rankervariant=Probability2017.1149.255.1
OpenQA2019.0848.756.3
First Only2019.0948.1—
MML2019.0947.4—
R³2017.1147.353.7
R³2019.0847.353.7
Lee et al. (2019)2019.0947.1—
Strength-Based Re-Rankervariant=Counting2017.1146.155.8
ORQA2020.0745.1—
ORQAReader Type=Extractive2020.0945—
ORQAModel Category=Extractive, #θ=220M2021.0945—
Baseline Re-Ranker (BM25)2017.1144.655.7
DrQA2019.0832.338.3
Full-Training2026.05—12.6
Global Subset2026.05—13.7
Layer-Wise Subset2026.05—14.6