FastWalshHadamardTransform

sklears_kernel_approximation::structured_random_features

Struct FastWalshHadamardTransform

pub struct FastWalshHadamardTransform;

Expand description

Fast Walsh-Hadamard Transform for efficient structured features

This implements the Fast Walsh-Hadamard Transform (FWHT) which can be used to accelerate computations with Hadamard-structured random features.

Implementations§

impl FastWalshHadamardTransform

pub fn transform(data: Array1<Float>) -> Result<Array1<Float>>

Apply Fast Walsh-Hadamard Transform to input vector

Time complexity: O(n log n) where n is the length of the input Input length must be a power of 2

pub fn transform_rows(data: Array2<Float>) -> Result<Array2<Float>>

Apply FWHT to each row of a 2D array

Auto Trait Implementations§

impl Freeze for FastWalshHadamardTransform

impl RefUnwindSafe for FastWalshHadamardTransform

impl Send for FastWalshHadamardTransform

impl Sync for FastWalshHadamardTransform

impl Unpin for FastWalshHadamardTransform

impl UnwindSafe for FastWalshHadamardTransform

Blanket Implementations§

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