How can I obtain the output of an intermediate layer

[msabda...@gmail.com]

Good day all,

In keras/tensorflow, it is possible to access or otain the output of any layer from the model as in the code below

from keras import backend as K


get_3rd_layer_output = K.function([model.layers[0].input, K.learning_phase()],
 [model.layers[3].output])

# output in test mode = 0
layer_output = get_3rd_layer_output([x, 0])[0]

# output in train mode = 1
layer_output = get_3rd_layer_output([x, 1])[0]

My question is there a way of acheiving the same in chainer?

Your kind help is highly appreciated. Thank you.

Abdullahi Mohammad 

[Kenichi Maehashi]

Hi Abdullahi,

If you are using Sequential model, you can create another Sequential instance by indexing, e.g.,

>>> sub_sequential = chainer.Sequential(*original_sequential[0:2])

https://docs.chainer.org/en/stable/reference/generated/chainer.Sequential.html#chainer.Sequential.__getitem__

Thanks,

Kenichi