keras/demo_subclass.py
Francois Chollet 1a45e5cd17 Add demos
2023-04-18 15:46:57 -07:00

40 lines
938 B
Python

import numpy as np
from keras_core import Model
from keras_core import layers
from keras_core import losses
from keras_core import metrics
from keras_core import optimizers
class MyModel(Model):
def __init__(self, hidden_dim, output_dim):
super().__init__()
self.dense1 = layers.Dense(hidden_dim)
self.dense2 = layers.Dense(hidden_dim)
self.dense3 = layers.Dense(output_dim)
def call(self, x):
x = self.dense1(x)
x = self.dense2(x)
return self.dense3(x)
model = MyModel(hidden_dim=256, output_dim=16)
model.summary()
x = np.random.random((50000, 128))
y = np.random.random((50000, 16))
batch_size = 32
epochs = 10
model.compile(
optimizer=optimizers.SGD(learning_rate=0.001),
loss=losses.MeanSquaredError(),
metrics=[metrics.MeanSquaredError()],
)
history = model.fit(x, y, batch_size=batch_size, epochs=epochs)
print("History:")
print(history.history)