Table 7. Ablations on the hyper-parameter of our proposed method using I2P score.

Bold entries indicate the best performing results.

	$\text{τ}$
$\lambda$	0	5	10	15	20	25	30
0.1	0.34	0.35	0.33	0.34	0.34	0.35	0.35
0.3	0.33	0.34	0.34	0.34	0.34	0.34	0.35
0.5	0.35	0.37	0.34	0.36	0.38	0.35	0.35
0.7	0.46	0.46	0.46	0.46	0.46	0.40	0.40
0.9	0.54	0.54	0.55	0.56	0.55	0.53	0.49