Table 2.

Performance comparisons of different word segmentation methods without Seq-GAN on the independent test dataset.

Layer	Word Segmentation Method	$\mathbf{Acc}$	$\mathbf{Sn}$	$\mathbf{Sp}$	$\mathbf{MCC}$
First Layer (Enhancer Identification)	Overlapped 3-Gram Word Segmentation	0.752	0.781	0.724	0.539
	Non-Overlapped 3-Gram Word Segmentation	0.762	0.784	0.741	0.552
	Word Segmentation Based on Statistics	0.772	0.799	0.746	0.578
Second Layer (Enhancer Strength Identification)	Overlapped 3-Gram Word Segmentation	0.718	0.843	0.593	0.484
	Non-Overlapped 3-Gram Word Segmentation	0.728	0.896	0.560	0.523
	Word Segmentation Based on Statistics	0.724	0.917	0.531	0.537