Does setting BiasLearnRateFactor=0 prevent bias updates in a fullyConnectedLayer?

actorNet = [
    featureInputLayer(prod(obsInfo.Dimension))
    fullyConnectedLayer(64, Bias=zeros(64,1), BiasLearnRateFactor=0)
    reluLayer
    fullyConnectedLayer(64, Bias=zeros(64,1), BiasLearnRateFactor=0)
    fullyConnectedLayer(prod(actInfo.Dimension))
    scalingLayer(Scale=5000, Bias=0)
    ];

actorOptions = rlOptimizerOptions( ...
    LearnRate=1e-4, ...
    GradientThreshold=1, ...
    L2RegularizationFactor=1e-4);

I constructed an actor network and set the optimizer options as shown above.

My question is:

If I set BiasLearnRateFactor=0 in the fullyConnectedLayer, does this mean that the bias will not be updated at all during training?

Answer 1

[Matt J]

Yes.