[英]Save and restore Experimenter/Estimator in Tensorflow
我正在編寫一個訓練4個神經網絡並收集其結果以找到更好結果的程序。 我將使用集成方法來執行此操作,但問題不關乎它。
問題是在訓練過程后恢復每個模型。 我發現了另一個問題 ,但這根本沒有幫助。
我的英語不太好,所以我將嘗試使用偽python代碼解釋我的工作流程:
for i in range(4):
# Create the estimator (a DNNClassifier).
estimator = build_estimator(...)
# Train the model.
estimator.fit(input_fn=...)
# Do other stuffs...
for i in range(4):
# Restore the estimator using the same arguments.
estimator = build_estimator(...)
# Predict the input data.
predictions[i] = estimator.predict(input_fn=...)
# Do others stuffs using the predictions collection.
從廣義上講,這就是我的代碼,即使它看起來不錯且簡單明了,也無法正常工作。 在還原期間會顯示此錯誤,這表示我的DNN未正確保存。
2017-07-24 11:40:24.517773: W c:\tf_jenkins\home\workspace\release-win\m\windows\py\35\tensorflow\core\framework\op_kernel.cc:1158] Not found: Key dnn/hiddenlayer_1/weights not found in checkpoint
2017-07-24 11:40:24.517884: W c:\tf_jenkins\home\workspace\release-win\m\windows\py\35\tensorflow\core\framework\op_kernel.cc:1158] Not found: Key dnn/hiddenlayer_0/biases not found in checkpoint
2017-07-24 11:40:24.518739: W c:\tf_jenkins\home\workspace\release-win\m\windows\py\35\tensorflow\core\framework\op_kernel.cc:1158] Not found: Key dnn/hiddenlayer_0/weights not found in checkpoint
2017-07-24 11:40:24.519621: W c:\tf_jenkins\home\workspace\release-win\m\windows\py\35\tensorflow\core\framework\op_kernel.cc:1158] Not found: Key dnn/logits/biases not found in checkpoint
2017-07-24 11:40:24.519684: W c:\tf_jenkins\home\workspace\release-win\m\windows\py\35\tensorflow\core\framework\op_kernel.cc:1158] Not found: Key dnn/hiddenlayer_1/biases not found in checkpoint
2017-07-24 11:40:24.519861: W c:\tf_jenkins\home\workspace\release-win\m\windows\py\35\tensorflow\core\framework\op_kernel.cc:1158] Not found: Key dnn/hiddenlayer_2/weights not found in checkpoint
2017-07-24 11:40:24.519947: W c:\tf_jenkins\home\workspace\release-win\m\windows\py\35\tensorflow\core\framework\op_kernel.cc:1158] Not found: Key dnn/hiddenlayer_2/biases not found in checkpoint
2017-07-24 11:40:24.522592: W c:\tf_jenkins\home\workspace\release-win\m\windows\py\35\tensorflow\core\framework\op_kernel.cc:1158] Not found: Key dnn/logits/weights not found in checkpoint
predict
的evaluation
是必要的。 我嘗試過,但是什么都沒有改變。 您應該這樣創建模型:
estimator = tf.contrib.learn.DNNClassifier(feature_columns = feature_cols,hidden_units = [10,10,10],n_classes = 2,model_dir = your_path)
estimator.fit(input_fn = lambda:input_fn1(訓練數據),步長= 1000)
estimator_predict = estimator.predict(input_fn = lambda:input_fn1(test_data))
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