Questions about reducing the semantickitti data set by reducing categories! classes

[liuyuansheng624]

I want to reduce the semantickitti data set category to class 3 (car person road) by first modifying the label in yaml.The figure is in this link）

In addition, I also changed the last convolution layer of the network model, changing its output category to 3

I also changed the semantickitti dataset num_per_class = np, array [541736,17294618,230413074]

I don't know if this modification is correct, and what else needs to be changed. I hope you can help me solve this problem

[liuyuansheng624]

My results are shown here. What do you think？

[liuyuansheng624]

我的结果显示在这里。你怎么认为？
I was change the category to unlabeled and outlier, car, the person that road