Scaling layer usage for action output
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Hello, I am using the tanhlayer as the output activation function for the action network while my action space is [0,10]. In this sense, I am referring to this answer by adding scaling layer.
However, I got saturated action value. I looked into the answer, shouldn't it be
scalingLayer('Scale',(actionInfo.UpperLimit-actionInfo.LowerLimit)/2,'Bias',(actionInfo.UpperLimit+actionInfo.LowerLimit)/2)
Thanks for your help.
Here is the code"
numActions = 2;
actInfo = rlNumericSpec([numActions 1],'LowerLimit',0,'UpperLimit', 10);
actorNetwork = [
featureInputLayer(numObservations,'Normalization','none','Name','State')
fullyConnectedLayer(32, 'Name','actorFC1')
reluLayer('Name','relu1')
fullyConnectedLayer(16, 'Name','actorFC2')
reluLayer('Name','relu2')
fullyConnectedLayer(numActions,'Name','Action')
tanhLayer('Name','tanh3')
scalingLayer('Scale',actInfo.UpperLimit-actInfo.LowerLimit,'Bias',(actInfo.UpperLimit-actInfo.LowerLimit)/2)
];
actordlNet = dlnetwork(actorNetwork);
actor = rlContinuousDeterministicActor(actordlNet,obsInfo,actInfo);
댓글 수: 5
Emmanouil Tzorakoleftherakis
2023년 6월 13일
편집: Emmanouil Tzorakoleftherakis
2023년 6월 13일
Can you post the code you are using to create the actor? Also, which agent are you using? At which value is the action saturated? Between [0 10] or something else?
Yihao Wan
2023년 6월 13일
Yihao Wan
2023년 6월 20일
Emmanouil Tzorakoleftherakis
2023년 6월 20일
I corrected the answer, you are right, the scale factor should be divided by 2
Yihao Wan
2023년 6월 20일
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