mlpack::nmf::WMultiplicativeDistanceRule Class Reference

The update rule for the basis matrix W. More...

Public Member Functions
	WMultiplicativeDistanceRule ()
Static Public Member Functions
template<typename MatType >
static void	Update (const MatType &V, arma::mat &W, const arma::mat &H)
	The update function that actually updates the W matrix.

Detailed Description

The update rule for the basis matrix W.

The formula used is

$W_{ia} \leftarrow W_{ia} \frac{(VH^T)_{ia}}{(WHH^T)_{ia}}$

Definition at line 41 of file mult_dist_update_rules.hpp.

mlpack::nmf::WMultiplicativeDistanceRule::WMultiplicativeDistanceRule ( ) [inline]

Definition at line 45 of file mult_dist_update_rules.hpp.

template<typename MatType >

static void mlpack::nmf::WMultiplicativeDistanceRule::Update	(	const MatType &	V,
		arma::mat &	W,
		const arma::mat &	H
	)			`[inline, static]`

The update function that actually updates the W matrix.

The function takes in all the matrices and only changes the value of the W matrix.

Parameters:

	V	Input matrix to be factorized.
	W	Basis matrix to be updated.
	H	Encoding matrix.

Definition at line 56 of file mult_dist_update_rules.hpp.

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