Enum KernelType

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pub enum KernelType {
    Linear,
    Rbf {
        gamma: f64,
    },
    Polynomial {
        gamma: f64,
        coef0: f64,
        degree: f64,
    },
    Sigmoid {
        gamma: f64,
        coef0: f64,
    },
    Precomputed,
    Custom(String),
    Cosine,
    ChiSquared {
        gamma: f64,
    },
    Intersection,
    Hellinger,
    JensenShannon,
    Periodic {
        length_scale: f64,
        period: f64,
    },
}

Expand description

Main kernel type enumeration

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Linear

Linear kernel: K(x,y) = x^T y

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Rbf

RBF/Gaussian kernel: K(x,y) = exp(-γ||x-y||²)

Fields

§gamma: f64

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Polynomial

Polynomial kernel: K(x,y) = (γ x^T y + r)^d

Fields

§gamma: f64

§coef0: f64

§degree: f64

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Sigmoid

Sigmoid kernel: K(x,y) = tanh(γ x^T y + r)

Fields

§gamma: f64

§coef0: f64

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Precomputed

Precomputed kernel matrix

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Custom(String)

Custom user-defined kernel

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Cosine

Cosine similarity kernel

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ChiSquared

Chi-squared kernel

Fields

§gamma: f64

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Intersection

Histogram intersection kernel

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Hellinger

Hellinger kernel

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JensenShannon

Jensen-Shannon kernel

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Periodic

Periodic kernel

Fields

§length_scale: f64

§period: f64

Trait Implementations§

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impl Clone for KernelType

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fn clone(&self) -> KernelType

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 Debug for KernelType

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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 Kernel for KernelType

Implement Kernel trait for KernelType to enable direct usage

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fn compute(&self, x: ArrayView1<'_, f64>, y: ArrayView1<'_, f64>) -> f64

Compute kernel value between two vectors

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fn parameters(&self) -> HashMap<String, f64>

Get kernel parameters for serialization

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fn compute_matrix(&self, x: &Array2<f64>, y: &Array2<f64>) -> Array2<f64>

Compute kernel matrix for two datasets

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impl PartialEq for KernelType

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fn eq(&self, other: &KernelType) -> 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 StructuralPartialEq for KernelType

Auto Trait Implementations§

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impl UnwindSafe for KernelType

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 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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