trained the resnet200 with my own dataset

[hydxqing]

Recently, I read your paper Grad-CAM: Visual Explanations from Deep Networks via Gradient-based Localization, I am very interested in it and have a few questions to ask you:

1. I trained the resnet200 with my own dataset, and observed the results with Grad-CAM. The result was poor, and the grad-cam graph was different after running the program every time. What was the reason?
2. Is this method related to the brightness of the object in the picture? Sometimes the brighter area is judged as the target.
3. The method mentioned in the paper can be used in segmentation. How do you use it?
   Your help is very important to me, and I am looking forward to your reply.