Revealing the Importance of Semantic Retrieval for Machine Reading at Scale
Table 5: System performance on different answer types. “PN”= Proper Noun
['Answer Type', 'Total', 'Correct', 'Acc. (%)']
We further sample 200 examples from HotpotQA and manually tag them according to several common answer types Yang et al. The most frequent answer type is ’Person’ (24%) and the least frequent answer type is ’Event’ (2%). It is also interesting to note that the model performs the best in Yes/