Building a Discourse-Argument Hybrid System for Vietnamese Why-Question Answering

Table 9

The answer rates of the experiment systems.

Models	Hard		Moderate		Easy
	#samples	Rates (%)	#samples	Rates (%)	#samples	Rates (%)
VS-YQA	0	0.0	9	34.6	59	100.0
PhoBERT-YQA	0	0.0	17	65.4	44	74.6
DA-YQA	5	33.3	19	73.1	53	89.8
OH-YQAcausal	1	6.7	4	15.4	12	20.3
OH-YQAsentence	1	6.7	11	42.3	43	72.9