Tensorflow:tf.get_collection不返回范围中的变量

Question

我试图让所有的变量在变量范围,如解释在这里.但是,tf.get_collection(tf.GraphKeys.VARIABLES, scope='my_scope')即使该范围中存在变量,该行也会返回一个空列表.

这是一些示例代码:

import tensorflow as tf

with tf.variable_scope('my_scope'):
    a = tf.Variable(0)
print tf.get_collection(tf.GraphKeys.VARIABLES, scope='my_scope')

打印[].

如何获取声明的变量'my_scope'？

Answer 1

tf.GraphKeys.VARIABLES自TensorFlow 0.12起,该集合名称已被弃用.使用tf.GraphKeys.GLOBAL_VARIABLES将给出预期的结果:

with tf.variable_scope('my_scope'):
    a = tf.Variable(0)
print tf.get_collection(tf.GraphKeys.GLOBAL_VARIABLES, scope='my_scope')
# ==> '[<tensorflow.python.ops.variables.Variable object at 0x7f33f67ebbd0>]'