The simple polynomial kernel. More...

Public Member Functions
	PolynomialKernel (const double degree=2.0, const double offset=0.0)
	Construct the Polynomial Kernel with the given offset and degree. More...

template<typename VecTypeA , typename VecTypeB >
double	Evaluate (const VecTypeA &a, const VecTypeB &b) const
	Simple evaluation of the dot product. More...

const double &	Degree () const
	Get the degree of the polynomial.

double &	Degree ()
	Modify the degree of the polynomial.

const double &	Offset () const
	Get the offset of the dot product of the arguments.

double &	Offset ()
	Modify the offset of the dot product of the arguments.

template<typename Archive >
void	serialize (Archive &ar, const uint32_t)
	Serialize the kernel.

Detailed Description

The simple polynomial kernel.

For any two vectors \( x \), \( y \), \( degree \) and \( offset \),

\[ K(x, y) = (x^T * y + offset) ^ {degree}. \]

Constructor & Destructor Documentation

mlpack::kernel::PolynomialKernel::PolynomialKernel	(	const double	degree = `2.0`,
		const double	offset = `0.0`
	)

inline

Construct the Polynomial Kernel with the given offset and degree.

If the arguments are omitted, the default degree is 2 and the default offset is 0.

Parameters

offset	Offset of the dot product of the arguments.
degree	Degree of the polynomial.

template<typename VecTypeA , typename VecTypeB >

double mlpack::kernel::PolynomialKernel::Evaluate	(	const VecTypeA &	a,
		const VecTypeB &	b
	)		const

inline

Simple evaluation of the dot product.

This evaluation uses Armadillo's dot() function.

Template Parameters

VecTypeA	Type of first vector (should be arma::vec or arma::sp_vec).
VecTypeB	Type of second vector (arma::vec / arma::sp_vec).

Parameters

a	First vector.
b	Second vector.

The documentation for this class was generated from the following file: