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Identity

Identity Operation

Returns input unchanged. Useful as a placeholder, in conditional branches, or when an operation slot requires a neuron but no transform is needed.

Shape Contract:

  • Input: [*shape] arbitrary shape
  • Output: [*shape] same shape as input (unchanged)

Notes:

  • No learnable parameters
  • Zero computational cost (just returns input reference)
  • Useful in pattern matching for do-nothing branches
  • Can serve as placeholder during architecture development
  • Used in residual connections when skip path needs no transform

Signature​

neuron Identity()

Ports​

Inputs:

  • default: [*shape]

Outputs:

  • default: [*shape]

Implementation​

Source { source: "core", path: "structural/Identity" }