मैं नीचे तंत्रिका नेट की प्रशिक्षण प्रक्रिया का सारांश प्राप्त करने का प्रयास कर रहा हूं।टेन्सफोर्लो सारांश विलय त्रुटि: आकार [-1,784] में नकारात्मक आयाम
import tensorflow as tf
import numpy as np
from tensorflow.examples.tutorials.mnist import input_data
mnist = input_data.read_data_sets(".\MNIST",one_hot=True)
# Create the model
def train_and_test(hidden1,hidden2, learning_rate, epochs, batch_size):
with tf.name_scope("first_layer"):
input_data = tf.placeholder(tf.float32, [batch_size, 784], name = "input")
weights1 = tf.Variable(
tf.random_normal(shape =[784, hidden1],stddev=0.1),name = "weights")
bias = tf.Variable(tf.constant(0.0,shape =[hidden1]), name = "bias")
activation = tf.nn.relu(
tf.matmul(input_data, weights1) + bias, name = "relu_act")
tf.summary.histogram("first_activation", activation)
with tf.name_scope("second_layer"):
weights2 = tf.Variable(
tf.random_normal(shape =[hidden1, hidden2],stddev=0.1),
name = "weights")
bias2 = tf.Variable(tf.constant(0.0,shape =[hidden2]), name = "bias")
activation2 = tf.nn.relu(
tf.matmul(activation, weights2) + bias2, name = "relu_act")
tf.summary.histogram("second_activation", activation2)
with tf.name_scope("output_layer"):
weights3 = tf.Variable(
tf.random_normal(shape=[hidden2, 10],stddev=0.5), name = "weights")
bias3 = tf.Variable(tf.constant(1.0, shape =[10]), name = "bias")
output = tf.add(
tf.matmul(activation2, weights3, name = "mul"), bias3, name = "output")
tf.summary.histogram("output_activation", output)
y_ = tf.placeholder(tf.float32, [batch_size, 10])
with tf.name_scope("loss"):
cross_entropy = tf.reduce_mean(
tf.nn.softmax_cross_entropy_with_logits(labels=y_, logits=output))
tf.summary.scalar("cross_entropy", cross_entropy)
with tf.name_scope("train"):
train_step = tf.train.GradientDescentOptimizer(learning_rate).minimize(cross_entropy)
with tf.name_scope("tests"):
correct_prediction = tf.equal(tf.argmax(output, 1), tf.argmax(y_, 1))
accuracy = tf.reduce_mean(tf.cast(correct_prediction, tf.float32))
summary_op = tf.summary.merge_all()
sess = tf.InteractiveSession()
writer = tf.summary.FileWriter("./data", sess.graph)
tf.global_variables_initializer().run()
# Train
for i in range(epochs):
batch_xs, batch_ys = mnist.train.next_batch(batch_size)
_, summary = sess.run([train_step,summary_op], feed_dict={input_data: batch_xs, y_: batch_ys})
writer.add_summary(summary)
if i % 10 ==0:
test_xs, test_ys = mnist.train.next_batch(batch_size)
test_accuracy = sess.run(accuracy, feed_dict = {input_data : test_xs, y_ : test_ys})
writer.close()
return test_accuracy
if __name__ =="__main__":
print(train_and_test(500, 200, 0.001, 10000, 100))
मैं मॉडल परीक्षण डाटा के एक यादृच्छिक बैच के साथ हर 10 कदम का परीक्षण कर रहा हूँ। समस्या ग्रीष्मकालिन लेखक में है। लूप के अंदर sess.run() त्रुटि के बाद फेंकता है।
Traceback (most recent call last):
File "<ipython-input-18-78c88c8e6471>", line 1, in <module>
runfile('C:/Users/Suman
Nepal/Documents/Projects/MNISTtensorflow/mnist.py', wdir='C:/Users/Suman
Nepal/Documents/Projects/MNISTtensorflow')
File "C:\Users\Suman Nepal\Anaconda3\lib\site-
packages\spyder\utils\site\sitecustomize.py", line 880, in runfile
execfile(filename, namespace)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-
packages\spyder\utils\site\sitecustomize.py", line 102, in execfile
exec(compile(f.read(), filename, 'exec'), namespace)
File "C:/Users/Suman Nepal/Documents/Projects/MNISTtensorflow/mnist.py", line 68, in <module>
print(train_and_test(500, 200, 0.001, 100, 100))
File "C:/Users/Suman Nepal/Documents/Projects/MNISTtensorflow/mnist.py", line 58, in train_and_test
_, summary = sess.run([train_step,summary_op], feed_dict={input_data: batch_xs, y_: batch_ys})
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\tensorflow\python\client\session.py", line 789, in run
run_metadata_ptr)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\tensorflow\python\client\session.py", line 997, in _run
feed_dict_string, options, run_metadata)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\tensorflow\python\client\session.py", line 1132, in _do_run
target_list, options, run_metadata)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\tensorflow\python\client\session.py", line 1152, in _do_call
raise type(e)(node_def, op, message)
InvalidArgumentError: Shape [-1,784] has negative dimensions
[[Node: first_layer_5/input = Placeholder[dtype=DT_FLOAT, shape=[?,784], _device="/job:localhost/replica:0/task:0/cpu:0"]()]]
Caused by op 'first_layer_5/input', defined at:
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\spyder\utils\ipython\start_kernel.py", line 231, in <module>
main()
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\spyder\utils\ipython\start_kernel.py", line 227, in main
kernel.start()
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\ipykernel\kernelapp.py", line 477, in start
ioloop.IOLoop.instance().start()
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\zmq\eventloop\ioloop.py", line 177, in start
super(ZMQIOLoop, self).start()
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\tornado\ioloop.py", line 888, in start
handler_func(fd_obj, events)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\tornado\stack_context.py", line 277, in null_wrapper
return fn(*args, **kwargs)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 440, in _handle_events
self._handle_recv()
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 472, in _handle_recv
self._run_callback(callback, msg)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 414, in _run_callback
callback(*args, **kwargs)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\tornado\stack_context.py", line 277, in null_wrapper
return fn(*args, **kwargs)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\ipykernel\kernelbase.py", line 283, in dispatcher
return self.dispatch_shell(stream, msg)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\ipykernel\kernelbase.py", line 235, in dispatch_shell
handler(stream, idents, msg)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\ipykernel\kernelbase.py", line 399, in execute_request
user_expressions, allow_stdin)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\ipykernel\ipkernel.py", line 196, in do_execute
res = shell.run_cell(code, store_history=store_history, silent=silent)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\ipykernel\zmqshell.py", line 533, in run_cell
return super(ZMQInteractiveShell, self).run_cell(*args, **kwargs)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 2717, in run_cell
interactivity=interactivity, compiler=compiler, result=result)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 2827, in run_ast_nodes
if self.run_code(code, result):
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 2881, in run_code
exec(code_obj, self.user_global_ns, self.user_ns)
File "<ipython-input-8-78c88c8e6471>", line 1, in <module>
runfile('C:/Users/Suman Nepal/Documents/Projects/MNISTtensorflow/mnist.py', wdir='C:/Users/Suman Nepal/Documents/Projects/MNISTtensorflow')
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\spyder\utils\site\sitecustomize.py", line 880, in runfile
execfile(filename, namespace)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\spyder\utils\site\sitecustomize.py", line 102, in execfile
exec(compile(f.read(), filename, 'exec'), namespace)
File "C:/Users/Suman Nepal/Documents/Projects/MNISTtensorflow/mnist.py", line 86, in <module>
File "C:/Users/Suman Nepal/Documents/Projects/MNISTtensorflow/mnist.py", line 12, in train_and_test
input_data = tf.placeholder(tf.float32, [None, 784], name = "input")
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\tensorflow\python\ops\array_ops.py", line 1530, in placeholder
return gen_array_ops._placeholder(dtype=dtype, shape=shape, name=name)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\tensorflow\python\ops\gen_array_ops.py", line 1954, in _placeholder
name=name)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\tensorflow\python\framework\op_def_library.py", line 767, in apply_op
op_def=op_def)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\tensorflow\python\framework\ops.py", line 2506, in create_op
original_op=self._default_original_op, op_def=op_def)
File "C:\Users\Suman Nepal\Anaconda3\lib\site-packages\tensorflow\python\framework\ops.py", line 1269, in __init__
self._traceback = _extract_stack()
InvalidArgumentError (see above for traceback): Shape [-1,784] has negative dimensions
[[Node: first_layer_5/input = Placeholder[dtype=DT_FLOAT, shape=[?,784], _device="/job:localhost/replica:0/task:0/cpu:0"]()]]
यदि मैंने सभी सारांश लेखकों और सारांश को हटा दिया है, तो मॉडल ठीक चलता है। तुम मुझे यहाँ समस्या दिखाई देती है मदद कर सकते हैं? मैंने टेंसर के आकार में हेरफेर करने की कोशिश की लेकिन कहीं भी नहीं मिला।
यह आईपीथन कंसोल के साथ समस्या थी। यदि आपके पास समान समस्या है तो पूरे कोड को tf.Graph() में g के रूप में लपेटें और उस ग्राफ़ में सत्र चलाएं। – nsuman