我使用Keras来实现一个自动编码器,后面跟着一个TimeDistributed
层。然而,我遇到了一个AssertionError
。在
回溯日志:
Traceback (most recent call last):
File "test3.py", line 115, in <module>
model.fit(x_train, y_train, batch_size=batch_size, validation_split=0.05, nb_epoch=1, shuffle=True)
File "/home/xiaoyong/xiaoyong/local/lib/python2.7/site-packages/keras/engine/training.py", line 1022, in fit
self._make_test_function()
File "/home/xiaoyong/xiaoyong/local/lib/python2.7/site-packages/keras/engine/training.py", line 686, in _make_test_function
**self._function_kwargs)
File "/home/xiaoyong/xiaoyong/local/lib/python2.7/site-packages/keras/backend/theano_backend.py", line 528, in function
return Function(inputs, outputs, updates=updates, **kwargs)
File "/home/xiaoyong/xiaoyong/local/lib/python2.7/site-packages/keras/backend/theano_backend.py", line 514, in __init__
**kwargs)
File "/home/xiaoyong/xiaoyong/local/lib/python2.7/site-packages/theano/compile/function.py", line 322, in function
output_keys=output_keys)
File "/home/xiaoyong/xiaoyong/local/lib/python2.7/site-packages/theano/compile/pfunc.py", line 480, in pfunc
output_keys=output_keys)
File "/home/xiaoyong/xiaoyong/local/lib/python2.7/site-packages/theano/compile/function_module.py", line 1827, in orig_function
output_keys=output_keys).create(
File "/home/xiaoyong/xiaoyong/local/lib/python2.7/site-packages/theano/compile/function_module.py", line 1507, in __init__
optimizer_profile = optimizer(fgraph)
File "/home/xiaoyong/xiaoyong/local/lib/python2.7/site-packages/theano/gof/opt.py", line 102, in __call__
return self.optimize(fgraph)
File "/home/xiaoyong/xiaoyong/local/lib/python2.7/site-packages/theano/gof/opt.py", line 90, in optimize
ret = self.apply(fgraph, *args, **kwargs)
File "/home/xiaoyong/xiaoyong/local/lib/python2.7/site-packages/theano/gof/opt.py", line 233, in apply
sub_prof = optimizer.optimize(fgraph)
File "/home/xiaoyong/xiaoyong/local/lib/python2.7/site-packages/theano/gof/opt.py", line 86, in optimize
self.add_requirements(fgraph)
File "/home/xiaoyong/xiaoyong/local/lib/python2.7/site-packages/theano/tensor/opt.py", line 1434, in add_requirements
fgraph.attach_feature(ShapeFeature())
File "/home/xiaoyong/xiaoyong/local/lib/python2.7/site-packages/theano/gof/fg.py", line 566, in attach_feature
attach(self)
File "/home/xiaoyong/xiaoyong/local/lib/python2.7/site-packages/theano/tensor/opt.py", line 1261, in on_attach
self.on_import(fgraph, node, reason='on_attach')
File "/home/xiaoyong/xiaoyong/local/lib/python2.7/site-packages/theano/tensor/opt.py", line 1314, in on_import
self.set_shape(r, s)
File "/home/xiaoyong/xiaoyong/local/lib/python2.7/site-packages/theano/tensor/opt.py", line 1113, in set_shape
shape_vars.append(self.unpack(s[i]))
File "/home/xiaoyong/xiaoyong/local/lib/python2.7/site-packages/theano/tensor/opt.py", line 1035, in unpack
assert s_i >= 0
AssertionError
我的模型是:
^{pr2}$
我收到了同样的错误信息。部分网络的代码大致如下所示。如你所见,我也在使用卷积1d
我用参数做了一点实验,并在maxpoolg1d层将border_模式从“same”更改为“valid”,修复了这个错误。然后我又回去改变了卷积1D中的边界模式。从建模的角度来看,这可能对您有效,也可能不起作用,但这是我使用的解决方法-希望这有帮助。我的Keras版本是1.0.5。在
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