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Research map / Large language models / Retrieval and knowledge

Retrospective Reader for Machine Reading Comprehension

AAAI 2021 · Large language models › Retrieval and knowledge · approach: Explanatory and multiple-choice QA benchmarks · 191 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Add sketchy and intensive reading with rear verificationELECTRA · SQuAD2.0 testF1: 91.4 -> 92.1Helped
Add sketchy and intensive reading with rear verificationALBERT · NewsQA testF1: 65.9 -> 66.8Helped
Add external front verification (ablation)BERT · SQuAD2.0 devF1: 81.7 -> 82.1Helped
Add internal front verification with cross-entropy loss (ablation)BERT · SQuAD2.0 devF1: 81.7 -> 82.0Helped
Add internal front verification with binary cross-entropy loss (ablation)BERT · SQuAD2.0 devF1: 81.7 -> 81.8No clear effect
Add internal front verification with mean squared error loss (ablation)BERT · SQuAD2.0 devF1: 81.7 -> 81.7No clear effect
Combine external and internal front verification as rear verification (ablation)BERT · SQuAD2.0 devF1: 81.7 -> 82.5Helped
Combine external and internal front verification as rear verification (ablation)ALBERT · SQuAD2.0 devF1: 90.2 -> 90.9Helped
Use retrospective reader instead of a two-model ensemble (ablation)ALBERT · SQuAD2.0 devF1: 90.6 -> 90.9Helped
Add cross attention matching (ablation)ALBERT · SQuAD2.0 devF1: 90.2 -> 90.3No clear effect
Add cross attention matching (ablation)ALBERT · NewsQA devF1: 67.5 -> 66.3Hurt
Add matching attention (ablation)ALBERT · SQuAD2.0 devF1: 90.2 -> 90.0Hurt

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