Struct CompositeRegularization 

pub struct CompositeRegularization { /* private fields */ }

Composite regularization that combines multiple regularization schemes

Implementations

impl CompositeRegularization

pub fn new() -> Self

Create a new composite regularization

pub fn add_regularization( self, weight: Float, regularization: Box<dyn Regularization>, ) -> Self

Add a regularization scheme with a weight

pub fn add_l1(self, alpha: Float) -> Result<Self>

Add L1 regularization

pub fn add_l2(self, alpha: Float) -> Result<Self>

Add L2 regularization

pub fn add_group_lasso(self, alpha: Float, groups: Vec<usize>) -> Result<Self>

Add Group Lasso regularization

pub fn is_any_non_smooth(&self) -> bool

Check if any component is non-smooth

Trait Implementations

impl Debug for CompositeRegularization

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for CompositeRegularization

fn default() -> Self

Returns the “default value” for a type.

impl Regularization for CompositeRegularization

fn penalty(&self, coefficients: &Array1<Float>) -> Result<Float>

Compute the regularization penalty value

fn penalty_gradient( &self, coefficients: &Array1<Float>, ) -> Result<Array1<Float>>

Compute the regularization gradient (subgradient for non-smooth penalties)

fn proximal_operator( &self, coefficients: &Array1<Float>, step_size: Float, ) -> Result<Array1<Float>>

Apply the proximal operator (for proximal gradient methods)

fn is_non_smooth(&self) -> bool

Check if this regularization is non-smooth (requires proximal methods)

fn strength(&self) -> Float

Get the regularization strength

fn name(&self) -> &'static str

Get the name of this regularization