pytorch系列文档之Pooling layers详解（MaxPool1d、MaxPool2d、MaxPool3d） pytorch

MaxPool1d

torch.nn.MaxPool1d(kernel_size, stride=None, padding=0, dilation=1, return_indices=False, ceil_mode=False)

输入size为(N,C,L)，在L维进行池化

pytorch系列文档之Pooling layers详解（MaxPool1d、MaxPool2d、MaxPool3d）

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参数：

kernel_size – 池化窗口大小 stride – 步长. Default value is kernel_size padding – padding的值，默认就是不padding dilation – 控制扩张的参数 return_indices – if True, will return the max indices along with the outputs. Useful for torch.nn.MaxUnpool1d later ceil_mode – when True, 会用向上取整而不是向下取整来计算output的shape

【pytorch系列文档之Pooling layers详解（MaxPool1d、MaxPool2d、MaxPool3d）】shape:

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示例：

>>> # pool of size=3, stride=2 >>> m = nn.MaxPool1d(3, stride=2) >>> input = torch.randn(20, 16, 50) >>> output = m(input)

MaxPool2d

torch.nn.MaxPool2d(kernel_size, stride=None, padding=0, dilation=1, return_indices=False, ceil_mode=False)

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kernel_size, stride, padding, dilation 这四个值可以是以下两种中的一个:

a single int – in which case the same value is used for the height and width dimension a tuple of two ints – in which case, the first int is used for the height dimension, and the second int for the width dimension

参数：与1d一致
shape

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示例：

>>> # pool of square window of size=3, stride=2 >>> m = nn.MaxPool2d(3, stride=2) >>> # pool of non-square window >>> m = nn.MaxPool2d((3, 2), stride=(2, 1)) >>> input = torch.randn(20, 16, 50, 32) >>> output = m(input)

MaxPool3d

torch.nn.MaxPool3d(kernel_size, stride=None, padding=0, dilation=1, return_indices=False, ceil_mode=False)

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kernel_size, stride, padding, dilation 这四个值可以是以下两种中的一个:

a single int – in which case the same value is used for the depth, height and width dimension a tuple of three ints – in which case, the first int is used for the depth dimension, the second int for the height dimension and the third int for the width dimension

参数：与1d一致
Shape:

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示例：

>>> # pool of square window of size=3, stride=2 >>> m = nn.MaxPool3d(3, stride=2) >>> # pool of non-square window >>> m = nn.MaxPool3d((3, 2, 2), stride=(2, 1, 2)) >>> input = torch.randn(20, 16, 50,44, 31) >>> output = m(input)