torch.unsqueeze(sig, dim=1)
时间: 2023-11-02 13:06:49 浏览: 39
torch.unsqueeze(sig, dim=1)的作用是在张量sig的维度dim上增加一个维度。这个操作可以用来改变张量的形状,比如将一维张量变成二维张量。具体来说,torch.unsqueeze(sig, dim=1)会在sig张量的第dim维度上插入一个长度为1的新维度,使得原来的dim维度变成dim+1维度。这个操作在神经网络中经常用来处理批量数据,比如将一组图像的通道维度从3变成1。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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