diff between given model and trained model

[youngprogrammerBee]

Very appreciate your work, I got little question.
I have tried training the model by the given instructions
bash moment_detr/scripts/train.sh , and I also tried running predictions on my own videos using checkpoint model given by you PYTHONPATH=$PYTHONPATH:. python run_on_video/run.py, both of them worked.
But how can I predict on my own videos using model trained by myself ?(training dataset still uses yours)
I find that just change the model path in run_example to the model I trained is not worked.
so the questions are: what's the difference between the model I trained and the model you give? how can I run predictions on my own trained model and how to set command to train this model?