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

Public Member Functions
	WAlternatingLeastSquaresRule ()
Static Public Member Functions
static void	Update (const arma::mat &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

$W^T = \frac{HV^T}{HH^T}$

Definition at line 42 of file als_update_rules.hpp.

Constructor & Destructor Documentation

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

Definition at line 46 of file als_update_rules.hpp.

static void mlpack::nmf::WAlternatingLeastSquaresRule::Update	(	const arma::mat &	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 als_update_rules.hpp.

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