skflow示例抛出错误

Question

我对python和skflow非常陌生，但我遇到了一个非常基本的问题，希望有人能帮助我。

我已经安装了skflow并下载了示例中使用的dbpedia_csv。然而，在运行“text_classification_character_rnn.py”示例时，我遇到了一个错误：

Traceback (most recent call last):
File "/home/me/Projects/skflow/examples/text_classification_character_rnn.py", line 70, in <module>
classifier.fit(X_train, y_train)
 File "/home/me/Projects/skflow/skflow/estimators/base.py", line 217, in fit
self._setup_training()
File "/home/me/Projects/skflow/skflow/estimators/base.py", line 148, in _setup_training
self._inp, self._out)
File "/home/me/Projects/skflow/examples/text_classification_character_rnn.py", line 63, in char_rnn_model
return skflow.models.logistic_regression(encoding, y)
File "/home/me/Projects/skflow/skflow/models.py", line 65, in logistic_regression
tf.histogram_summary('logistic_regression.X', X)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/ops/summary_ops.py", line 39, in histogram_summary
tag=tag, values=values, name=scope)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/ops/gen_summary_ops.py", line 34, in _histogram_summary
name=name)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/ops/op_def_library.py", line 397, in apply_op
values, name=input_arg.name, dtype=dtype)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/framework/ops.py", line 468, in convert_to_tensor
ret = conversion_func(value, dtype=dtype, name=name)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/ops/constant_op.py", line 143, in constant
tensor_util.make_tensor_proto(value, dtype=dtype, shape=shape))
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/framework/tensor_util.py", line 287, in make_tensor_proto
_AssertCompatible(values, dtype)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/framework/tensor_util.py", line 227, in _AssertCompatible
(dtype.name, mismatch))
TypeError: Expected float32, got <tensorflow.python.framework.ops.Tensor object at 0x7f415dfcc290> instead.

对我做错了什么有什么想法吗？另外，text_classification_cnn.py正在工作，但是print('Accuracy: {0:f}'.format(score))没有精确性被打印出来。我使用PyCharm EDU2.0.3来运行代码。

Answer 1

这看起来像是skflow和TensorFlow之间的版本错配。从错误消息来看，您似乎有一个旧版本(0.5或0.6)的TensorFlow。但是，skflow是最近更新在TensorFlow中使用一个新的接口，看起来您正在使用这个最新版本的skflow。

最简单的解决方案是从升级TensorFlow到0.7.1版本