mlpack
2.2.5

RandomAcolInitialization< columnsToAverage > Class Template Reference
This class initializes the W matrix of the AMF algorithm by averaging p randomly chosen columns of V. More...
Public Member Functions  
RandomAcolInitialization ()  
template < typename Archive >  
void  Serialize (Archive &, const unsigned int) 
Serialize the object (in this case, there is nothing to serialize). More...  
Static Public Member Functions  
template < typename MatType >  
static void  Initialize (const MatType &V, const size_t r, arma::mat &W, arma::mat &H) 
Detailed Description
template<size_t columnsToAverage = 5>
class mlpack::amf::RandomAcolInitialization< columnsToAverage >
This class initializes the W matrix of the AMF algorithm by averaging p randomly chosen columns of V.
In this case, p is a template parameter. H is then filled using a uniform distribution in the range [0, 1].
This simple initialization is the "random Acol initialization" found in the following paper:
@techreport{langville2014algorithms,
title = {Algorithms, Initializations, and Convergence for the Nonnegative
Matrix Factorization},
author = {Langville, A.N. and Meyer, C.D. and Albright, R. and Cox, J. and
Duling, D.},
year = {2014},
institution = {NCSU Technical Report Math 81706}
}
 Template Parameters

columnsToAverage The number of random columns to average for each column of W.
Definition at line 44 of file random_acol_init.hpp.
Constructor & Destructor Documentation
◆ RandomAcolInitialization()

inline 
Definition at line 48 of file random_acol_init.hpp.
Member Function Documentation
◆ Initialize()

inlinestatic 
Definition at line 52 of file random_acol_init.hpp.
References mlpack::math::RandInt(), and Log::Warn.
◆ Serialize()

inline 
Serialize the object (in this case, there is nothing to serialize).
Definition at line 88 of file random_acol_init.hpp.
The documentation for this class was generated from the following file:
 src/mlpack/methods/amf/init_rules/random_acol_init.hpp
Generated by 1.8.13