Created
November 17, 2020 17:11
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| optimizer=keras.optimizers.Adam() | |
| loss=keras.losses.SparseCategoricalCrossentropy(from_logits=True,reduction='none') | |
| def loss_fn(true,pred): | |
| mask = tf.math.logical_not(tf.math.equal(true, 0)) | |
| loss_=loss(true,pred) | |
| mask=tf.cast(mask,dtype=loss_.dtype) | |
| loss_*=mask | |
| return tf.reduce_mean(loss_) |
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