logsumexp¶
dragon.vm.torch.
logsumexp
(
input,
dim,
keepdim=False,
out=None
)[source]¶Apply the composite of log, sum, and exp to input.
\[\text{out}_{i} = \log\sum_{j}\exp(\text{input}_{ij}) \]- Parameters:
- input (dragon.vm.torch.Tensor) – The input tensor.
- dim (Union[int, Sequence[int]]) – The dimension(s) to reduce.
- keepdim (bool, optional, default=False) – Whether the output tensor has dim retained or not.
- out (dragon.vm.torch.Tensor, optional) – The output tensor.
- Returns:
dragon.vm.torch.Tensor – The output tensor.