Python Tensorflow中的再训练模型
我有一个使用Tensorflow的简单神经网络。 以下是会议:Python Tensorflow中的再训练模型,python,machine-learning,tensorflow,prediction,Python,Machine Learning,Tensorflow,Prediction,我有一个使用Tensorflow的简单神经网络。 以下是会议: with tensorFlow.Session() as sess: sess.run(tensorFlow.global_variables_initializer()) for epoch in range(epochs): i = 0 epochLoss = 0 for _ in range(int(len(data) / batchSize)): ex, ey = nextBatc
with tensorFlow.Session() as sess:
sess.run(tensorFlow.global_variables_initializer())
for epoch in range(epochs):
i = 0
epochLoss = 0
for _ in range(int(len(data) / batchSize)):
ex, ey = nextBatch(i)
i += 1
feedDict = {x :ex, y:ey }
_, cos = sess.run([optimizer,cost], feed_dict= feedDict)
epochLoss += cos / (int(len(data)) / batchSize)
print("Epoch", epoch + 1, "completed out of", epochs, "loss:", "{:.9f}".format(epochLoss))
save_path = saver.save(sess, "model.ckpt")
print("Model saved in file: %s" % save_path)
在最后2行中,我保存了模型并在另一个类中恢复了图形:
with new_graph.as_default():
with tf.Session(graph=new_graph) as sess:
sess.run(tf.global_variables_initializer())
new_saver = tf.train.import_meta_graph('model.ckpt.meta')
new_saver.restore(sess, tf.train.latest_checkpoint('./'))
我想重新训练模型,这意味着不初始化权重,只是从它停止的最后一点更新它们
我该怎么做 来自
tf.train.Saver.restore(sess,保存路径)
恢复以前保存的变量
此方法运行构造函数添加的用于还原的ops
变量。它需要启动图形的会话最新版本
要还原的变量不必初始化,如下所示
还原本身就是初始化变量的一种方式。
以下示例来自
还要检查文档。这个问题实际上是关于保存和恢复模型的。
# Create some variables.
v1 = tf.Variable(..., name="v1")
v2 = tf.Variable(..., name="v2")
...
# Add ops to save and restore all the variables.
saver = tf.train.Saver()
# Later, launch the model, use the saver to restore variables from disk, and
# do some work with the model.
with tf.Session() as sess:
# Restore variables from disk.
saver.restore(sess, "/tmp/model.ckpt")
print("Model restored.")
# Do some work with the model
...