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#?Copyright?2015?The?TensorFlow?Authors.?All?Rights?Reserved.
#
#?Licensed?under?the?Apache?License?Version?2.0?（the?“License“）;
#?you?may?not?use?this?file?except?in?compliance?with?the?License.
#?You?may?obtain?a?copy?of?the?License?at
#
#?????http://www.apache.org/licenses/LICENSE-2.0
#
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#?distributed?under?the?License?is?distributed?on?an?“AS?IS“?BASIS
#?WITHOUT?WARRANTIES?OR?CONDITIONS?OF?ANY?KIND?either?express?or?implied.
#?See?the?License?for?the?specific?language?governing?permissions?and
#?limitations?under?the?License.
#?==============================================================================
from?tensorflow.examples.tutorials.mnist?import?input_data
mnist?=?input_data.read_data_sets（“MNIST_data/“?one_hot=True）

print（mnist.train.images.shape?mnist.train.labels.shape）
print（mnist.test.images.shape?mnist.test.labels.shape）
print（mnist.validation.images.shape?mnist.validation.labels.shape）

import?tensorflow?as?tf
sess?=?tf.InteractiveSession（）
x?=?tf.placeholder（tf.float32?[None?784]）

W?=?tf.Variable（tf.zeros（[784?10]））
b?=?tf.Variable（tf.zeros（[10]））

y?=?tf.nn.softmax（tf.matmul（x?W）?+?b）

y_?=?tf.placeholder（tf.float32?[None?10]）
cross_entropy?=?tf.reduce_mean（-tf.reduce_sum（y_?*?tf.log（y）?reduction_indices=[1]））

train_step?=?tf.train.GradientDescentOptimizer（0.5）.minimize（cross_entropy）

tf.global_variables_initializer（）.run（）

for?i?in?range（1000）:
????batch_xs?batch_ys?=?mnist.train.next_batch（100）
????train_step.run（{x:?batch_xs?y_:?batch_ys}）

correct_prediction?=?tf.equal（tf.argmax（y?1）?tf.argmax（y_?1））

accuracy?=?tf.reduce_mean（tf.cast（correct_prediction?tf.float32））

print（accuracy.eval（{x:?mnist.test.images?y_:?mnist.test.labels}））

?屬性????????????大小?????日期????時間???名稱
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?????文件???90940515??2017-12-11?15:42??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)_黃文堅（完整）.pdf

?????文件??????10244??2017-12-11?15:43??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\.DS_Store

?????文件???????1784??2017-12-11?15:43??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\3_2_HelloWorld（1）.py

?????文件???????5792??2017-12-11?15:43??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\4_2_AutoEncoer.py

?????文件???????1992??2017-12-11?15:43??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\4_4_MLP（1）.py

?????文件???????2957??2017-12-11?15:43??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\5_2_CNN_MNIST.py

?????文件???????5745??2017-12-11?15:43??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\5_3_CNN_CIFAR10.py

?????文件???????7667??2017-12-11?15:43??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\6_1_AlexNet.py

?????文件???????6608??2017-12-11?15:43??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\6_2_VGG.py

?????文件??????18116??2017-12-11?15:43??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\6_3_InceptionNet.py

?????文件??????17493??2017-12-11?15:43??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\6_4_ResNet.py

?????文件???????8950??2017-12-11?15:43??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\7_1_Word2Vec.py

?????文件???????9474??2017-12-11?15:43??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\7_2_LSTM.py

?????文件???????4521??2017-12-11?15:43??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\7_3_BiRNN.py

?????文件???????6861??2017-12-11?15:43??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\8_2_PolicyNetwork.py

?????文件???????4481??2017-12-11?15:43??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\8_3_GridWorld.py

?????文件???????8766??2017-12-11?15:43??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\8_3_Value_Network.py

?????文件???????6503??2017-12-11?15:43??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\9_1_TensorBoard.py

?????文件???????8930??2017-12-11?15:43??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\9_2_MultiGPU.py

?????文件??????10556??2017-12-11?15:42??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\9_3_Distributed.py

?????文件????????131??2017-12-11?15:42??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼\Tensorflow?and?Word2vec.txt

?????目錄??????????0??2017-12-11?15:43??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼\TensorFlow實戰(zhàn)代碼

?????目錄??????????0??2017-12-11?15:42??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼\TensorFlow實戰(zhàn)代碼

?????目錄??????????0??2017-12-11?15:42??TensorFlow實戰(zhàn)_黃文堅?完整書籍和代碼

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