Read + Verify: Machine Reading Comprehension with Unanswerable Questions
Table 5: Comparison of different readers with fixed answer verifier.
['Configuration', 'All EM', 'All F1', 'NoAns ACC']
We find that the absolute improvements are even larger: the no-answer accuracy roughly increases by 6 points when adding Model-III to DocQA (from 69.1 to 75.2), and 5.5 points when adding Model-III to DocQA + ELMo (from 70.6 to 76.1).