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Question Train new model using an existing one

Discussion in 'ML-Agents' started by fefecmm, Jun 7, 2021.

  1. fefecmm

    fefecmm

    Joined:
    Feb 28, 2020
    Posts:
    2
    Hello, I've been trying to train a new AI using the knowledge of an already trained AI. I know there's a command called "initialize-from" in ML-Agents documentation, but I'm getting an error. Here's my situation: I have a trained an AI with ID name BallAI_NoWall (and this same behavior name in inspector) located in "c:/myuser/results" which is the default location where trainings are saved, right? Well, I want to use this trained AI to create a new one, with ID name "BallAI_Wall" (and, again, this same behavior name in inspector). I attached screenshots of the cmd screen showing the errors.


    Also, another question not really related to the post title: When I train an AI, the results folder are like results/IdNameGivenInCmd/BehaviorNameGivenInUnityInspector, right? Can I have, like, several behaviors in that Id folder?
     

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    fefecmm, Jun 7, 2021
    #1

  2. henrypeteet

    henrypeteet

    Unity Technologies

    Joined:
    Aug 19, 2020
    Posts:
    37
    Hi, this may be an issue with the behavior name not matching between the two runs (a requirement of --initialize-from). I would suggest making sure the behavior name is the same for both in the config YAML and then using the run IDs to differentiate between the two.

    If I understand that you want them to look different in the inspector then please note that the name shown in-editor is just base filename without the .nn/.onnx extension. You can change this by copying the model file and renaming it if you really need the name to be different in the inspector.

    Please let me know if I miss-understood your question, hope this can help.
     
    henrypeteet, Jun 7, 2021
    #2