Table 4.

Parameter Tuning Procedure.

	No. of iterations (T)	Parameters
		η	h min	max_depth	γ	Max δ step	λ	α	Scale positive weight
Parameter range		[0,1]	[0,Inf]	[0,Inf]	[0,Inf]	[0,Inf]	[0,Inf]	[0,Inf]	[0,Inf]
Steps
1: Tune η	1,000	{0, 0.01, . . ., 0.3}	1	6	0	1	1	0	1
2: Tune max_depth and hmin	1,000	Step 1 value	{0, 0.05, . . ., 1}	{3, 4, . . ., 30}	0	1	1	0	1
3: Tune γ	1,000	Step 1 value	Step 2 value	Step 2 value	{0, 0.1, . . ., 1}	1	1	0	1
4: Tune max δ step	1,000	Step 1 value	Step 2 value	Step 2 value	Step 3 value	{0, 0.1, . . ., 3}	1	0	1
5: Tune λ	1,000	Step 1 value	Step 2 value	Step 2 value	Step 3 value	Step 4 value	{0, 0.1, . . ., 1.5}	0	1
6: Tune α	1,000	Step 1 value	Step 2 value	Step 2 value	Step 3 value	Step 4 value	Step 5 value	{0, 0.1, . . ., 1}	1
7: Tune scale positive weight	1,000	Step 1 value	Step 2 value	Step 2 value	Step 3 value	Step 4 value	Step 5 value	Step 6 value	{0, 0.1, . . ., 3}
Final model calibration	10,000	Step 1 value	Step 2 value	Step 2 value	Step 3 value	Step 4 value	Step 5 value	Step 6 value	Step 7 value

Note. Inf = infinity.