torch.nn.functional.l1_loss

torch.nn.functional.l1_loss(input, target, size_average=None, reduce=None, reduction='mean', weight=None)

Compute the L1 loss, with optional weighting.

Function that takes the mean element-wise absolute value difference.

See L1Loss for details.

Parameters

• input (Tensor) – Predicted values.

• target (Tensor) – Ground truth values.

• size_average (bool, optional) – Deprecated (see reduction).

• reduce (bool, optional) – Deprecated (see reduction).

• reduction (str, optional) – Specifies the reduction to apply to the output: ‘none’ | ‘mean’ | ‘sum’. ‘mean’: the mean of the output is taken. ‘sum’: the output will be summed. ‘none’: no reduction will be applied. Default: ‘mean’.

• weight (Tensor, optional) – Weights for each sample. Default: None.

Returns

L1 loss (optionally weighted).

Return type

Tensor