Table 2. Ablation tests according to the discriminator type.

Type	300VW-A	300VW-B	300VW-C
Without all	3.731	4.060	4.677
With Did	3.315	3.575	3.912
With Dexp	3.133	3.284	3.665
With Dtmp	3.078	3.192	3.504
With Did, Dexp	3.099	3.227	3.601
With Did, Dtmp	2.912	3.085	3.311
With Dexp, Dtmp	2.721	2.801	3.057
With all (Ours)	2.495	2.549	2.734