Table 1. Parameters of all simulated datasets.

Parameters
m	${10}^5$, $5\times {10}^5$
n	$5\times {10}^2$, ${10}^3$, $5\times {10}^3$, ${10}^4$
d	3, 6, 9
$\mathit{\alpha }$-prototypes	(10, 10, 10)
	(1, 1, 1)
	(0.1, 0.1, 0.1)
	(10, 1, 0.1)