Sequence

Models

F1-scores, %

AS

OP

1

w/o-re_mask

59.61

74.40

2

w/o-expand_mask

59.37

74.22

3

w/o-(re_mask + expand_mask)

58.61

73.74

4

w/o-Label_embedding

58.35

73.27

5

w/o-POS_embedding

58.03

73.13

6

CDDG-IK

60.20

74.74