CODEWITHSUNDEEP
pythontensorflowkeras
Ahmad Anis
Ahmad Anis

Reputation: 2704

Tensorflow Keras Metrics Not showing

I have a simple Neural Network

import tensorflow as tf
from tensorflow.keras.models import Sequential
from tensorflow.keras.layers import Dense, Flatten, Conv2D, MaxPooling2D, MaxPool2D
model = Sequential([
    Conv2D(16,(3,3),padding='same', input_shape=(1,28,28),data_format='channels_first'),
    MaxPooling2D((3,3), data_format='channels_first')
])
print(model.summary())

summary of model is

Model: "sequential_4"
_________________________________________________________________
Layer (type)                 Output Shape              Param #   
=================================================================
conv2d_2 (Conv2D)            (None, 16, 28, 28)        160       
_________________________________________________________________
max_pooling2d_2 (MaxPooling2 (None, 16, 9, 9)          0         
=================================================================
Total params: 160
Trainable params: 160
Non-trainable params: 0
_________________________________________________________________
None

and compilation as 

opt = tf.keras.optimizers.Adam(learning_rate=0.005)
model.compile(optimizer=opt,
              loss=tf.keras.losses.BinaryCrossentropy(),
              metrics=[tf.keras.metrics.BinaryAccuracy(),
              tf.keras.metrics.MeanAbsoluteError()]
              )

Now when I print Model attributes, it gives an empty list on metrics. Why is it so?

print(f"{model.metrics}\n{model.optimizer},\n,{model.loss}\n{model.optimizer.lr}")

This is output

[]
<tensorflow.python.keras.optimizer_v2.adam.Adam object at 0x000001FB10F2EDC8>,
,<tensorflow.python.keras.losses.BinaryCrossentropy object at 0x000001FB10F2EEC8>
<tf.Variable 'learning_rate:0' shape=() dtype=float32, numpy=0.005>

Upvotes: 6

Views: 2350

Answers (2)

J Agustin Barrachina
J Agustin Barrachina

Reputation: 4090

The model will show metrics after training.

So just run model.fit or model.train_on_batch and then try again to print. The metrics should appear.

Source.

Upvotes: 2

Ahmad Anis
Ahmad Anis

Reputation: 2704

Currently, this is a bug in Tensorflow version 2.2.0. Might be fixed later

Upvotes: 3

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