LearningRate

is an option for NetTrain that specifies the rate at which to adjust neural net weights in order to minimize the training loss.

Details

LearningRate->Automatic specifies that NetTrain should choose a learning rate automatically.
LearningRate->r specifies that the learning rate should be the number r.
The base learning rate for all learned weights is established using LearningRate. Use LearningRateMultipliers to modify this rate for particular parts of the net.
Typical learning rates are numbers much smaller than 1; values of between 0.001 and 0.01 are common. Choosing a learning rate that is too high can cause the net to fail to converge to a good solution. Choosing a learning rate that is too low will cause the training process to take longer than necessary.
Learning rates are usually not comparable across different optimizers specified via the Method option of NetTrain.

Train a network with a learning rate of 0.01:

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