Research on Chinese Question-Answering for Gaokao Based on Graph

Table 4

The experimental results are compared with the direct ranking method.

Method		R (%)	P (%)
Word similarity	Direct ranking	48.57	33.33
	PageRank ranking	58.69	43.33
Paragraph topic sentence	Direct ranking	39.41	33.33
	PageRank ranking	50.48	36.67
Author’s opinion sentence	Direct ranking	38.45	31.67
	PageRank ranking	51.79	38.33
Word similarity + frame matching	Direct ranking	52.74	36.67
	PageRank ranking	60.60	45.00
Word similarity + frame matching + paragraph topic sentence + author’s opinion sentence	Direct ranking	63.69	50.00
	Automatic QA method based on graph	67.86	51.67