mlpack
Public Member Functions | Static Public Member Functions | List of all members
mlpack::amf::RandomAcolInitialization< columnsToAverage > Class Template Reference

This class initializes the W matrix of the AMF algorithm by averaging p randomly chosen columns of V. More...

#include <random_acol_init.hpp>

Public Member Functions

template<typename Archive >
void serialize (Archive &, const uint32_t)
 Serialize the object (in this case, there is nothing to serialize).
 

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
columnsToAverageThe number of random columns to average for each column of W.

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