[英]In the convolution layer (Conv1D and Conv2D) in Tensorflow, when set padding='same', which side is padded with 0?
In tf.keras.layers.Conv1D
and Conv2D
, the argument padding
has the 'same'
option.在tf.keras.layers.Conv1D
和Conv2D
,参数padding
有'same'
选项。 I just want to know eg, Conv1D
, which side (the start or the end) is padded with 0 if the kernel_size=2 and stride=1.我只想知道,例如, Conv1D
,如果 kernel_size=2 和 stride=1,哪一侧(开始或结束)用 0 填充。
In case of Conv1D
,在Conv1D
情况下,
If the Number of Columns to be added (for padding, p_i
) is even, both the Left and Right Sides will be Padded with 0, uniformly.如果要添加的列数(对于填充, p_i
)是偶数,则左侧和右侧都将统一填充 0。
If the Number of Columns to be added (for padding, p_i
) is Odd, Only the Right Side will be Padded with 0.如果要添加的列数(用于填充, p_i
)为奇数,则只有右侧将填充为 0。
Number of Columns to be added can be calculated using the formula below:可以使用以下公式计算要添加的列数:
Case 01: n_i%s = 0, p_i = max(k-s ,0)
Case 02: n_i%s != 0, p_i = max(k - (n_i%s)), 0)
where n_i is Input Shape (Number of Columns), p_i is Number of Columns to be added for Padding, s is stride and kernel size as k.其中 n_i 是输入形状(列数),p_i 是要为填充添加的列数,s 是步长,内核大小为 k。
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