Add Hadamard rotation utilities to qwix/contrib.#301
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This change introduces a `hadamard_rot` module containing functions to generate Hadamard matrices with optional random sign flips and apply them to tensors. The core functionality is `hadamard_rotate_inputs`, which transforms both an activation and a weight matrix such that their product remains invariant. This is useful for techniques like Hadamard-based quantization. PiperOrigin-RevId: 930791813
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Add Hadamard rotation utilities to qwix/contrib.
This change introduces a
hadamard_rotmodule containing functions to generate Hadamard matrices with optional random sign flips and apply them to tensors. The core functionality ishadamard_rotate_inputs, which transforms both an activation and a weight matrix such that their product remains invariant. This is useful for techniques like Hadamard-based quantization.