这是我第一次使用 python 和 tensorflow 进行编程。我想使用动态 RNN 来构建句子嵌入。 这是我用 jupyter 编写的代码的一部分。
graph = tf.Graph()
x_data = tf.placeholder(tf.int32, [None,None])
sequence_lengths = tf.placeholder(tf.int32, shape=[None])
embedding_mat = tf.Variable(tf.random_uniform([vocab_size,embedding_size], 0.0, 1.0),dtype=tf.float32)
embedding_output = tf.nn.embedding_lookup(embedding_mat,x_data)
with tf.variable_scope('cell_def'):
cell =tf.contrib.rnn.GRUCell(num_units = rnn_size)
hidden_state_in =cell.zero_state(batch_size,tf.float32)
with tf.variable_scope('gru_def'):
output, state = tf.nn.dynamic_rnn(cell,embedding_output,initial_state=hidden_state_in,dtype=tf.float32,sequence_length=sequence_lengths)
with tf.Session(graph=graph) as sess:
sess.run(tf.global_variables_initializer())
feed_dict = {x_data:embedding_output}
sess.run(output,feed_dict=feed_dict)
#tf.get_variable_scope().reuse_variables()
sess.close()
当我运行代码时出现此错误:
Variable gru_def/rnn/gru_cell/gates/kernel already exists, disallowed. Did you mean to set reuse=True or reuse=tf.AUTO_REUSE in VarScope? Originally defined at:
我尝试通过调用 tf.get_variable_scope().reuse_variables()
将重用标志设置为 True 来解决此问题,但错误仍然存在。
然后,我向 GRUCell 添加一个 reuse 参数,但出现此错误:
ValueError: Variable gru_def/rnn/gru_cell/gates/kernel does not exist, or was not created with tf.get_variable(). Did you mean to set reuse=tf.AUTO_REUSE in VarScope?
cell = tf.contrib.rnn.GRUCell(num_units = rnn_size,reuse=True)
你能帮我一下吗?
最佳答案
在 tensorflow 1.3+ 中:
cell = tf.contrib.rnn.GRUCell(num_units=rnn_size, reuse=tf.AUTO_REUSE)
关于python - Tensorflow 错误 : Variable gru_def/rnn/gru_cell/gates/kernel does not exist, 或不是使用 tf.get_variable() 创建的,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/48137219/