Matching Questions and Answers in Dialogues from Online Forums
Table 6: The matching results on different choices of history.
['Models', 'F1', 'Acc@3', 'Acc@4', 'Acc@≥5']
Our final model (HDM) outperforms QH and AH, indicating that the turns between Q and NQ are significant when figuring out the relation of a Q-NQ pair. The turns before Q is actually not that important for matching Q and NQ. Although there is an overlap between the history we defined and the turns before NQ, the turns before Q brings more noises than benefits for the end-to-end performance. This suggests that our definition of history as the turns between Q and NQ is reasonable and effective.