How to get the weights of layer in a keras model for each input
我知道您可以通过Model.layer [layer_number] .getWeights()在某个点上从keras模型中获取图层的权重。我只是在训练过程中使用回调获取某个时期或一批的权重。
但是我想获得训练部分中每个输入的图层权重。或者,如果可能的话,为每个输入激活一个层,而不是一个时期。
有没有办法实现这一目标?
这是一个小例子。您可以使用
这将在每个时期之后打印权重,如果需要,您可以绘制权重/也可以保存权重或对其进行任何操作。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | from tensorflow.keras.layers import * from tensorflow.keras.models import Model, Sequential from tensorflow.keras.optimizers import Adam import tensorflow as tf import numpy as np from keras.callbacks import LambdaCallback model=Sequential() model.add(Dense(32,activation='linear',input_shape=(37,10))) model.add(Dense(32,activation='linear')) model.add(Dense(10,activation='linear')) model.compile(loss='mse',optimizer=Adam(lr=.001),metrics=['accuracy']) model.summary() class MyCustomCallback(tf.keras.callbacks.Callback): def on_train_batch_begin(self, batch, logs=None): print(model.layers[0].get_weights()) def on_train_batch_end(self, batch, logs=None): print(model.layers[0].get_weights()) def on_test_batch_begin(self, batch, logs=None): pass def on_test_batch_end(self, batch, logs=None): pass X_train = np.zeros((10,37,10)) y_train = np.zeros((10,37,10)) weight_print = MyCustomCallback() model.fit(X_train, y_train, batch_size=32, epochs=5, callbacks = [weight_print]) |