Ich versuche, ein möglichst einfaches LSTM-Netzwerk aufzubauen. Ich will nur, dass es den nächsten Wert in der Sequenz np_input_data
vorhersagt.tensorflow: shared Variablen Fehler mit einfachen LSTM-Netzwerk
import tensorflow as tf
from tensorflow.python.ops import rnn_cell
import numpy as np
num_steps = 3
num_units = 1
np_input_data = [np.array([[1.],[2.]]), np.array([[2.],[3.]]), np.array([[3.],[4.]])]
batch_size = 2
graph = tf.Graph()
with graph.as_default():
tf_inputs = [tf.placeholder(tf.float32, [batch_size, 1]) for _ in range(num_steps)]
lstm = rnn_cell.BasicLSTMCell(num_units)
initial_state = state = tf.zeros([batch_size, lstm.state_size])
loss = 0
for i in range(num_steps-1):
output, state = lstm(tf_inputs[i], state)
loss += tf.reduce_mean(tf.square(output - tf_inputs[i+1]))
with tf.Session(graph=graph) as session:
tf.initialize_all_variables().run()
feed_dict={tf_inputs[i]: np_input_data[i] for i in range(len(np_input_data))}
loss = session.run(loss, feed_dict=feed_dict)
print(loss)
Die Dolmetscher kehrt:
ValueError: Variable BasicLSTMCell/Linear/Matrix already exists, disallowed. Did you mean to set reuse=True in VarScope? Originally defined at:
output, state = lstm(tf_inputs[i], state)
Was kann ich tun, falsch?