NetExtract

NetExtract[layer, "param"] extracts the value of a parameter for the specified net layer.

• NetExtract[net, lspec] extracts the layer identified by lspec from within the NetGraph or NetChain object net.
• NetExtract[net, {lspec, "param"}] extracts the value of the parameter param from the layer identified by lspec in net.
• NetExtract[net, NetArray[spec]] extracts the value of a shared array within a network or layer.
• NetExtract[coder, "param"] extracts the value of a parameter for the specified NetEncoder or NetDecoder.
• NetExtract[..., {spec1, spec2, ...}] extracts a set of elements, where each speci is a list.

Examples

Extract weights from a layer:

layer = LinearLayer[3, "Input" -> 5];
layer = NetInitialize[layer];
NetExtract[layer, "Weights"]

Extract a layer from a chain:

net = NetChain[{LinearLayer[10], Ramp, LinearLayer[5]}];
NetExtract[net, 2]

Extract biases:

NetExtract[NetInitialize[LinearLayer[5]], "Biases"]

Please visit the official Wolfram Language Reference for more details.