问题

我正在试验ConvLSTMCell中的tensorflow r1.8。我继续生成的错误发生在ConvLSTMCell ValueError: Conv Linear Expects 3D, 4D, 5D方法中。调用__call__方法并引发错误。

unstacked

错误来自unstacked输入。 [BATCH_SIZE, N_INPUTS] = [2,5]（在此示例中）的维度为tf.unstack。我使用ConvLSTMCell生成tf.unstack所需的必需序列。

为什么要使用TypeError？

如果输入数组没有取消堆叠，则会引发下面的TypeError: inputs must be a sequence。

ConvLSTMCell

问题

格式化方面我缺少什么？我已经阅读了相关问题，但没有发现任何指导我进入工作实现的内容。

占位符尺寸是否正确？
我应该拆卸还是有更好的办法？
我是否在# Parameters TIME_STEPS = 28 N_INPUT = 5 N_HIDDEN = 128 LEARNING_RATE = 0.001 NUM_UNITS = 28 CHANNEL = 1 tf.reset_default_graph() # Input placeholders x = tf.placeholder(tf.float32, [BATCH_SIZE, TIME_STEPS, N_INPUT]) y = tf.placeholder(tf.float32, [None, 1]) # Format input as a sequence for LSTM Input unstacked = tf.unstack(x, TIME_STEPS, 1) # shape=(timesteps, batch, inputs) # Convolutional LSTM Layer lstm_layer = tf.contrib.rnn.ConvLSTMCell( conv_ndims=1, input_shape=[BATCH_SIZE, N_INPUT], output_channels=5, kernel_shape=[7,5] ) # Error is generated when the lstm_layer is invoked outputs, _ = tf.contrib.rnn.static_rnn( lstm_layer, unstacked, dtype=tf.float32)？

代码

    ---------------------------------------------------------------------------
    ValueError                                Traceback (most recent call last)
    <ipython-input-83-3568a097e4ea> in <module>()
         10     lstm_layer,
         11     unstacked,
    ---> 12     dtype=tf.float32) 

    ~/miniconda3/envs/MultivariateTimeSeries/lib/python3.6/site-packages/tensorflow/python/ops/rnn.py in static_rnn(cell, inputs, initial_state, dtype, sequence_length, scope)
       1322             state_size=cell.state_size)
       1323       else:
    -> 1324         (output, state) = call_cell()
       1325 
       1326       outputs.append(output)

    ~/miniconda3/envs/MultivariateTimeSeries/lib/python3.6/site-packages/tensorflow/python/ops/rnn.py in <lambda>()
       1309         varscope.reuse_variables()
       1310       # pylint: disable=cell-var-from-loop
    -> 1311       call_cell = lambda: cell(input_, state)
       1312       # pylint: enable=cell-var-from-loop
       1313       if sequence_length is not None:

    ~/miniconda3/envs/MultivariateTimeSeries/lib/python3.6/site-packages/tensorflow/python/ops/rnn_cell_impl.py in __call__(self, inputs, state, scope)
        230         setattr(self, scope_attrname, scope)
        231       with scope:
    --> 232         return super(RNNCell, self).__call__(inputs, state)
        233 
        234   def _rnn_get_variable(self, getter, *args, **kwargs):

    ~/miniconda3/envs/MultivariateTimeSeries/lib/python3.6/site-packages/tensorflow/python/layers/base.py in __call__(self, inputs, *args, **kwargs)
        715 
        716         if not in_deferred_mode:
    --> 717           outputs = self.call(inputs, *args, **kwargs)
        718           if outputs is None:
        719             raise ValueError('A layer\'s `call` method should return a Tensor '

    ~/miniconda3/envs/MultivariateTimeSeries/lib/python3.6/site-packages/tensorflow/contrib/rnn/python/ops/rnn_cell.py in call(self, inputs, state, scope)
       2110     cell, hidden = state
       2111     new_hidden = _conv([inputs, hidden], self._kernel_shape,
    -> 2112                        4 * self._output_channels, self._use_bias)
       2113     gates = array_ops.split(
       2114         value=new_hidden, num_or_size_splits=4, axis=self._conv_ndims + 1)

    ~/miniconda3/envs/MultivariateTimeSeries/lib/python3.6/site-packages/tensorflow/contrib/rnn/python/ops/rnn_cell.py in _conv(args, filter_size, num_features, bias, bias_start)
       2184     if len(shape) not in [3, 4, 5]:
       2185       raise ValueError("Conv Linear expects 3D, 4D "
    -> 2186                        "or 5D arguments: %s" % str(shapes))
       2187     if len(shape) != len(shapes[0]):
       2188       raise ValueError("Conv Linear expects all args "

    ValueError: Conv Linear expects 3D, 4D or 5D arguments: [[2, 5], [2, 2, 5]]

错误消息

int NPAGES = 3;
for (int page = 0; page < NPAGES; page++) {
    TIFFSetField(out, TIFFTAG_IMAGEWIDTH, frame->Width);
    TIFFSetField(out, TIFFTAG_IMAGELENGTH, frame->Height);
    TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 1);
    TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, 16);
    TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);

    TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
    TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISBLACK);
    TIFFSetField(out, TIFFTAG_MAXSAMPLEVALUE, (1 << frame->BitDepth) - 1);

    /// added 
    TIFFSetField(out, TIFFTAG_SUBFILETYPE, FILETYPE_PAGE);
    TIFFSetField(out, TIFFTAG_PAGENUMBER, page, NPAGES);
    TIFFWriteRawStrip(out, 0, (void*)image, frame->RawImageData->Length * 2);
}

Answer 1

这是一个带有几个调整的例子，至少通过了静态形状检查：

import tensorflow as tf

# Parameters
TIME_STEPS = 28
N_INPUT = 5
N_HIDDEN = 128
LEARNING_RATE = 0.001
NUM_UNITS = 28
CHANNEL = 1
BATCH_SIZE = 16

# Input placeholders
x = tf.placeholder(tf.float32, [BATCH_SIZE, TIME_STEPS, N_INPUT])
y = tf.placeholder(tf.float32, [None, 1])

# Format input as a sequence for LSTM Input
unstacked = tf.unstack(x[..., None], TIME_STEPS, 1) # shape=(timesteps, batch, inputs)

# Convolutional LSTM Layer
lstm_layer = tf.contrib.rnn.ConvLSTMCell(
        conv_ndims=1,
        input_shape=[N_INPUT, 1],
        output_channels=5,
        kernel_shape=[7]
    )

# Error is generated when the lstm_layer is invoked
outputs, _ = tf.contrib.rnn.static_rnn(
    lstm_layer,
    unstacked,
    dtype=tf.float32)

注意：

input_shape不包含批量维度（see docstring）
输入需要通道维度。很好，因为它是输入中的一个（这就是我所做的）。
不确定kernel_shape上的多个维度对于1-D卷积意味着什么。

输入尺寸Tensorflow v1.8 ConvLSTMCell

问题

代码

错误消息

1 个答案: