linfa_reduction::random_projection

Struct RandomProjectionValidParams

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pub struct RandomProjectionValidParams<Proj: ProjectionMethod, R: Rng + Clone> { /* private fields */ }
Expand description

Random projection hyperparameters

The main hyperparameter of random projections is the dimension of the embedding. This dimension is usually determined by the desired precision (or distortion) eps, using the Johnson-Lindenstrauss Lemma. However, this lemma makes a very conservative estimate of the required dimension, and does not leverage the structure of the data, therefore it is also possible to manually specify the dimension of the embedding.

As this algorithm is randomized, it also accepts an Rng as parameter, to be used to sample coordinate of the projection matrix.

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impl<Proj: ProjectionMethod, R: Rng + Clone> RandomProjectionValidParams<Proj, R>

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pub fn target_dim(&self) -> Option<usize>

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pub fn eps(&self) -> Option<f64>

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pub fn rng(&self) -> &R

Trait Implementations§

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impl<Proj: Clone + ProjectionMethod, R: Clone + Rng + Clone> Clone for RandomProjectionValidParams<Proj, R>

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fn clone(&self) -> RandomProjectionValidParams<Proj, R>

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<Proj: Debug + ProjectionMethod, R: Debug + Rng + Clone> Debug for RandomProjectionValidParams<Proj, R>

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

Formats the value using the given formatter. Read more
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impl<F, Proj, Rec, T, R> Fit<Rec, T, ReductionError> for RandomProjectionValidParams<Proj, R>
where F: Float, Proj: ProjectionMethod, Rec: Records<Elem = F>, R: Rng + Clone, Proj::RandomDistribution: Distribution<F>,

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type Object = RandomProjection<Proj, F>

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fn fit( &self, dataset: &DatasetBase<Rec, T>, ) -> Result<Self::Object, ReductionError>

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impl<Proj: PartialEq + ProjectionMethod, R: PartialEq + Rng + Clone> PartialEq for RandomProjectionValidParams<Proj, R>

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fn eq(&self, other: &RandomProjectionValidParams<Proj, R>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<Proj: ProjectionMethod, R: Rng + Clone> StructuralPartialEq for RandomProjectionValidParams<Proj, R>

Auto Trait Implementations§

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impl<Proj, R> Freeze for RandomProjectionValidParams<Proj, R>
where R: Freeze,

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impl<Proj, R> RefUnwindSafe for RandomProjectionValidParams<Proj, R>
where R: RefUnwindSafe, Proj: RefUnwindSafe,

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impl<Proj, R> Send for RandomProjectionValidParams<Proj, R>
where R: Send, Proj: Send,

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impl<Proj, R> Sync for RandomProjectionValidParams<Proj, R>
where R: Sync, Proj: Sync,

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impl<Proj, R> Unpin for RandomProjectionValidParams<Proj, R>
where R: Unpin, Proj: Unpin,

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impl<Proj, R> UnwindSafe for RandomProjectionValidParams<Proj, R>
where R: UnwindSafe, Proj: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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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 more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

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 more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<SS, SP> SupersetOf<SS> for SP
where SS: SubsetOf<SP>,

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fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more
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fn is_in_subset(&self) -> bool

Checks if self is actually part of its subset T (and can be converted to it).
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unsafe fn to_subset_unchecked(&self) -> SS

Use with care! Same as self.to_subset but without any property checks. Always succeeds.
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fn from_subset(element: &SS) -> SP

The inclusion map: converts self to the equivalent element of its superset.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V