Hierarchical Graph Network for Multi-hop Question Answering
Table 6: Error analysis of HGN model. For ‘Multi-hop’ errors, the model jumps to the wrong film (“Tommy (1975 film)”) instead of the correct one (“Quadrophenia (film)”) from the starting entity “rock opera 5:15”. The supporting fact for the ‘MRC’ example is “Childe Byron is a 1977 play by Romulus Linney about the strained relationship between the poet, Lord Byron, and his daughter, Ada Lovelace”.
['Category', 'Question', 'Answer', 'Prediction', 'Pct (%)']
Table 6 shows the ablation study results on paragraph selection loss Lpara and entity prediction loss Lentity. [CONTINUE] As shown in the table, using paragraph selection and entity prediction loss can further improve the joint F1 by 0.31 points,