Answering while Summarizing: Multi-task Learning for Multi-hop QA with Evidence Extraction
Table 5: Performance of our model and the baseline in evidence extraction on the development set in the distractor setting. The correlation is the Kendall tau correlation of the number of predicted evidence sentences and that of gold evidence.
['[EMPTY]', 'Precision', 'Recall', 'Correlation']
Our model improves both precision and recall, and the improvement in precision is larger. That is, it predicts the number of evidence sentences more accurately than the baseline.