C2_W4_Lab_02_Tree_Ensemble - splits and depths

Course Q&A Machine Learning Specialization Advanced Learning Algorithms
1

What is the rationale for selecting these min split and max depth numbers?

min_samples_split_list = [2,10, 30, 50, 100, 200, 300, 700] ## If the number is an integer, then it is the actual quantity of samples,
max_depth_list = [1,2, 3, 4, 8, 16, 32, 64, None] # None means that there is no depth limit.

2

I believe they are just for the sake of trying. However, the step intervals are monotonically increasing so that we can try a larger range with less number of trials. Another example of such is given in the lecture video " Choosing the learning rate" from course 1 week 2.