Hi everyone. I am studying the Haar Cascade. I have some question about the source code from this link:

https://www.codeproject.com/Articles/441226/Haar-feature-Object-Detection-in-Csharp

The author applied Accord.NET framework to do this project. I found that there are some long values inside the cs file "FaceHaarCascade". I would like to show one of the line:

nodes.Add(new[] { new HaarFeatureNode(0.004014195874333382, 0.0337941907346249, 0.8378106951713562, new int[] { 3, 7, 14, 4, -1 }, new int[] { 3, 9, 14, 2, 2 }) });

I searched for the meaning of the first 3 values, which are the Threshold, Left Value, Right Value respectively. But I have no idea what is the usage of last 2 elements. How to retrieve these 5 values?

I studied some of the article and paper about the training method of the classifier. But all I could know is the probably steps, not the details. Could anyone please teach me how to train a classifier? Thank you!