MLPACK  1.0.8
Public Member Functions | Static Public Member Functions | List of all members
mlpack::nmf::HMultiplicativeDivergenceRule Class Reference

The update rule for the encoding matrix H. More...

Public Member Functions

 HMultiplicativeDivergenceRule ()
 

Static Public Member Functions

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

Detailed Description

The update rule for the encoding matrix H.

The formula used is

\[ H_{a\mu} \leftarrow H_{a\mu} \frac{\sum_{i} W_{ia} V_{i\mu}/(WH)_{i\mu}} {\sum_{k} H_{ka}} \]

Definition at line 94 of file mult_div_update_rules.hpp.

Constructor & Destructor Documentation

mlpack::nmf::HMultiplicativeDivergenceRule::HMultiplicativeDivergenceRule ( )
inline

Definition at line 98 of file mult_div_update_rules.hpp.

Member Function Documentation

template<typename MatType >
static void mlpack::nmf::HMultiplicativeDivergenceRule::Update ( const MatType &  V,
const arma::mat &  W,
arma::mat &  H 
)
inlinestatic

The update function that actually updates the H matrix.

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

Parameters
VInput matrix to be factorized.
WBasis matrix.
HEncoding matrix to updated.

Definition at line 109 of file mult_div_update_rules.hpp.


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