man mlpack::amf::NMFALSUpdate (3): The alternating least square update rules of matrices W and H.

SYNOPSIS

Public Member Functions

NMFALSUpdate ()

template<typename MatType > void Initialize (const MatType &dataset, const size_t rank)

Static Public Member Functions

template<typename MatType > static void HUpdate (const MatType &V, const arma::mat &W, arma::mat &H)
The update rule for the encoding matrix H.
template<typename MatType > static void WUpdate (const MatType &V, arma::mat &W, const arma::mat &H)
The update rule for the basis matrix W.

Detailed Description

The alternating least square update rules of matrices W and H.

Definition at line 39 of file nmf_als.hpp.

Constructor & Destructor Documentation

mlpack::amf::NMFALSUpdate::NMFALSUpdate () [inline]

Definition at line 43 of file nmf_als.hpp.

Member Function Documentation

template<typename MatType > static void mlpack::amf::NMFALSUpdate::HUpdate (const MatType &V, const arma::mat &W, arma::mat &H) [inline], [static]

The update rule for the encoding matrix H. The formula used is \ The function takes in all the matrices and only changes the value of the H matrix.

Parameters:

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

Definition at line 96 of file nmf_als.hpp.

template<typename MatType > void mlpack::amf::NMFALSUpdate::Initialize (const MatType &dataset, const size_trank) [inline]

Definition at line 46 of file nmf_als.hpp.

template<typename MatType > static void mlpack::amf::NMFALSUpdate::WUpdate (const MatType &V, arma::mat &W, const arma::mat &H) [inline], [static]

The update rule for the basis matrix W. The formula used is \ The function takes in all the matrices and only changes the value of the W matrix.