Я пытаюсь использовать пример AlexNet (https://github.com/tflearn/tflearn/blob/master/examples/images/alexnet.py) с моими данными, однако я получаю следующую ошибку:
python alex_net.py
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcublas.so locally
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcudnn.so locally
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcufft.so locally
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcuda.so.1 locally
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcurand.so locally
^[I tensorflow/core/common_runtime/gpu/gpu_device.cc:951] Found device 0 with properties:
name: GeForce GTX TITAN X
major: 5 minor: 2 memoryClockRate (GHz) 1.076
pciBusID 0000:05:00.0
Total memory: 11.92GiB
Free memory: 11.81GiB
I tensorflow/core/common_runtime/gpu/gpu_device.cc:972] DMA: 0
I tensorflow/core/common_runtime/gpu/gpu_device.cc:982] 0: Y
I tensorflow/core/common_runtime/gpu/gpu_device.cc:1041] Creating TensorFlow device (/gpu:0) -> (device: 0, name: GeForce GTX TITAN X, pci bus id: 0000:05:00.0)
I tensorflow/core/common_runtime/gpu/gpu_device.cc:1041] Creating TensorFlow device (/gpu:0) -> (device: 0, name: GeForce GTX TITAN X, pci bus id: 0000:05:00.0)
---------------------------------
Run id: alexnet_oxflowers17
Log directory: /tmp/tflearn_logs/
---------------------------------
Training samples: 132162
Validation samples: 14685
--
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Traceback (most recent call last):
File "alex_net.py", line 114, in <module>
snapshot_epoch=False, run_id='alexnet_oxflowers17')
File "/home/psxts3/.virtualenv/lib/python2.7/site-packages/tflearn/models/dnn.py", line 188, in fit
run_id=run_id)
File "/home/psxts3/.virtualenv/lib/python2.7/site-packages/tflearn/helpers/trainer.py", line 277, in fit
show_metric)
File "/home/psxts3/.virtualenv/lib/python2.7/site-packages/tflearn/helpers/trainer.py", line 684, in _train
feed_batch)
File "/home/psxts3/.virtualenv/lib/python2.7/site-packages/tensorflow/python/client/session.py", line 717, in run
run_metadata_ptr)
File "/home/psxts3/.virtualenv/lib/python2.7/site-packages/tensorflow/python/client/session.py", line 894, in _run
% (np_val.shape, subfeed_t.name, str(subfeed_t.get_shape())))
ValueError: Cannot feed value of shape (64, 277, 277, 3) for Tensor u'InputData/X:0', which has shape '(?, 227, 227, 3)'
Я использую cv2 для чтения изображений и изменения их размера до 277 на 277 пикселей, затем все изображения сохраняются в массиве X, который имеет форму [146847, 277, 277, 3]. Метки хранятся в нескольких CSV-файлах и считываются в массив Y и имеют форму [146847, 5]. Каждая метка имеет 5 различных классов, от 0 до 1 с шагом 0,2.
Сетевой код выглядит следующим образом:
net = input_data(shape=[None, 227, 227, 3])
net = conv_2d(net, 96, 11, strides=4, activation='relu')
net = max_pool_2d(net, 3, strides=2)
net = local_response_normalization(net)
net = conv_2d(net, 256, 5, activation='relu')
net = max_pool_2d(net, 3, strides=2)
net = local_response_normalization(net)
net = conv_2d(net, 384, 3, activation='relu')
net = conv_2d(net, 384, 3, activation='relu')
net = conv_2d(net, 256, 3, activation='relu')
net = max_pool_2d(net, 3, strides=2)
net = local_response_normalization(net)
net = fully_connected(net, 4096, activation='tanh')
net = dropout(net, 0.5)
net = fully_connected(net, 4096, activation='tanh')
net = dropout(net, 0.5)
net = fully_connected(net, num_classes, activation='softmax')
net = regression(net, optimizer='momentum', loss='categorical_crossentropy', learning_rate=0.001)
где num_classes = 5.
model = tflearn.DNN(net, checkpoint_path='model_alexnet',
max_checkpoints=1, tensorboard_verbose=2)
model.fit(X, Y, n_epoch=1000, validation_set=0.1, shuffle=True,
show_metric=True, batch_size=64, snapshot_step=200,
snapshot_epoch=False, run_id='alexnet_oxflowers17')
Любая дополнительная информация нужна, пожалуйста, спросите.
