HAS-QA: Hierarchical Answer Spans Model for Open-domain Question Answering
Table 4: Results on QuasarT with different beam search parameters K1-K2.
['[ITALIC] K1- [ITALIC] K2 1-1', 'EM 0.428', 'F1 0.483', '[ITALIC] K1- [ITALIC] K2 1-1', 'EM 0.428', 'F1 0.483']
We find that the larger K1 yields the better performance, while K2 seems irrelevant to the performance. As a conclusion, we choose the parameters K1=3,K2=1 to balance the performance and the speed.