pub enum SparsityKind {
SmoothedL1 {
eps: f64,
},
Hoyer,
Log {
delta: f64,
},
}Expand description
Sparsifier kernel.
SmoothedL1 { eps }—Σ_i sqrt(x_i² + ε²). The smoothing scaleεmay be REML-selected (eps_rho_index = Some(_)), in which case the shrink rateε → 0is governed by the marginal likelihood (Occam keepsεlarge when the data don’t demand sharpness).Hoyer—(√n · ‖x‖_1 − ‖x‖_2) / (√n − 1). Scale-invariant; encourages absolute sparsity even when the global scale ofxdrifts.Log { delta }—Σ_i log(1 + x_i² / δ²). Strongly concave; aggressive sparsifier suitable for active-set / iterative-reweighted paths.
Variants§
Trait Implementations§
Source§impl Clone for SparsityKind
impl Clone for SparsityKind
Source§fn clone(&self) -> SparsityKind
fn clone(&self) -> SparsityKind
Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreimpl Copy for SparsityKind
Auto Trait Implementations§
impl Freeze for SparsityKind
impl RefUnwindSafe for SparsityKind
impl Send for SparsityKind
impl Sync for SparsityKind
impl Unpin for SparsityKind
impl UnsafeUnpin for SparsityKind
impl UnwindSafe for SparsityKind
Blanket Implementations§
impl<T> Allocation for T
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<T> DistributionExt for Twhere
T: ?Sized,
impl<T> DistributionExt for Twhere
T: ?Sized,
impl<T, U> Imply<T> for U
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self into a Left variant of Either<Self, Self>
if into_left is true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self into a Left variant of Either<Self, Self>
if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreSource§impl<T> Pointable for T
impl<T> Pointable for T
impl<T> Read<Exclusive, BecauseExclusive> for Twhere
T: ?Sized,
Source§impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
Source§fn to_subset(&self) -> Option<SS>
fn to_subset(&self) -> Option<SS>
The inverse inclusion map: attempts to construct
self from the equivalent element of its
superset. Read moreSource§fn is_in_subset(&self) -> bool
fn is_in_subset(&self) -> bool
Checks if
self is actually part of its subset T (and can be converted to it).Source§fn to_subset_unchecked(&self) -> SS
fn to_subset_unchecked(&self) -> SS
Use with care! Same as
self.to_subset but without any property checks. Always succeeds.Source§fn from_subset(element: &SS) -> SP
fn from_subset(element: &SS) -> SP
The inclusion map: converts
self to the equivalent element of its superset.