Table 1.

The range of the distance metrics.

	ED	PCCD	SKLD	HD	KD	BD
Range of distance value	[0, +∞]	[−1,1]	[0, +∞]	[0, +∞]	[0, +∞]	—
Range of similarity score	[0, +∞]	[0,1]	[0, +∞]	[0, +∞]	[0, +∞]	[0,1]