Table 3.

Precision of fine-tuned models on unanswerable questions

Model	EM
G-BERT	89.59%
G-BERT+Rad	95.52%
G-BERT+Rad+Flex	96.01%
GM-BERT	89.97%
GM-BERT+Rad	95.32%
GM-BERT+Rad+Flex	96.12%
RadBERT	87.37%