RuntimeError: a view of a leaf Variable that requires grad is being used in an in-place operation.

逃离我推掉我的手 2023-01-16 09:46 292阅读 0赞

修改代码。如下：

  1. def _initialize_biases(self, cf=None):  # initialize biases into Detect(), cf is class frequency
  2.         # cf = torch.bincount(torch.tensor(np.concatenate(dataset.labels, 0)[:, 0]).long(), minlength=nc) + 1.
  3.         m = self.model[-1]  # Detect() module
  4.         for mi, s in zip(m.m, m.stride):  # from
  5.             b = mi.bias.view(m.na, -1)  # conv.bias(255) to (3,85)
  6.             with torch.no_grad():
  7.                 b[:, 4] += math.log(8 / (640 / s) ** 2)  # obj (8 objects per 640 image)
  8.                 b[:, 5:] += math.log(0.6 / (m.nc - 0.99)) if cf is None else torch.log(cf / cf.sum())  # cls
  9.             mi.bias = torch.nn.Parameter(b.view(-1), requires_grad=True)

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