python - Keras 陷入第一个纪元

Question

我试图测试 Keras 和 TensorFlow 是否可以在配备 32GB RAM 的最新 Mojave 的 MacBook Pro 上运行，但显然不行!

我尝试将它们安装在单独的新环境中，并且运行良好，但我不明白为什么它在我的基础(根)环境中不起作用。

from keras.models import Sequential
from keras.layers import Dense
from keras.utils import to_categorical

from sklearn.preprocessing import StandardScaler
from sklearn.model_selection import train_test_split
from sklearn.datasets import make_regression

X, y = make_regression(n_samples=1000, n_features=20)
X_train, X_test, y_train, y_test = train_test_split(X, y, random_state=42)

ss = StandardScaler()
X_train_sc = ss.fit_transform(X_train)
X_test_sc = ss.transform(X_test)

model = Sequential()
model.add(Dense(32, input_dim=20, activation='relu'))
model.add(Dense(8, activation='relu'))
model.add(Dense(1))

model.compile(loss='mean_squared_error', optimizer='adam')

model.fit(X_train_sc, y_train, validation_data=(X_test_sc, y_test), epochs=10, batch_size=32)

我期望得到这个结果，这是我在干净的环境中所做的:

WARNING:tensorflow:From /Users/Hovanes/anaconda3/envs/clean/lib/python3.7/site-packages/tensorflow/python/ops/math_ops.py:3066: to_int32 (from tensorflow.python.ops.math_ops) is deprecated and will be removed in a future version.
Instructions for updating:
Use tf.cast instead.
Train on 750 samples, validate on 250 samples
Epoch 1/10
2019-04-26 19:04:32.220021: I tensorflow/core/platform/cpu_feature_guard.cc:141] Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX2 FMA
750/750 [==============================] - 0s 235us/step - loss: 30460.2991 - val_loss: 30451.6543
Epoch 2/10
750/750 [==============================] - 0s 23us/step - loss: 30384.4905 - val_loss: 30375.6350
Epoch 3/10
750/750 [==============================] - 0s 22us/step - loss: 30292.1559 - val_loss: 30280.5673
Epoch 4/10
750/750 [==============================] - 0s 23us/step - loss: 30162.1524 - val_loss: 30141.1293
Epoch 5/10
750/750 [==============================] - 0s 22us/step - loss: 29971.8937 - val_loss: 29918.3467
Epoch 6/10
750/750 [==============================] - 0s 23us/step - loss: 29689.4520 - val_loss: 29591.1545
Epoch 7/10
750/750 [==============================] - 0s 22us/step - loss: 29266.3404 - val_loss: 29122.6358
Epoch 8/10
750/750 [==============================] - 0s 22us/step - loss: 28671.3374 - val_loss: 28470.9937
Epoch 9/10
750/750 [==============================] - 0s 23us/step - loss: 27898.4042 - val_loss: 27585.4375
Epoch 10/10
750/750 [==============================] - 0s 22us/step - loss: 26869.9945 - val_loss: 26530.5343
<keras.callbacks.History object at 0x136d07630>

但是，我只得到了这个:

WARNING:tensorflow:From /Users/Hovanes/anaconda3/lib/python3.7/site-packages/tensorflow/python/ops/math_ops.py:3066: to_int32 (from tensorflow.python.ops.math_ops) is deprecated and will be removed in a future version.
Instructions for updating:
Use tf.cast instead.
Train on 750 samples, validate on 250 samples
Epoch 1/10

我使用完全相同的安装方法 (pip) 在完全相同的计算机上运行完全相同的代码。

任何和所有的帮助将不胜感激!

Answer 1

无法复制该错误，我在 manjaro 中使用了 python 3.6.7 和 3.7.3。 下载我使用的软件包:

conda install -c conda-forge jupyterlab scikit-learn keras

你能告诉我你是如何安装这些库的吗？否则，您可以尝试使用上面的命令来安装库。

如果它不起作用，可能是其他原因。