mlpack
2.2.5
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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
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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()
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inline |
Definition at line 48 of file random_acol_init.hpp.
Member Function Documentation
◆ Initialize()
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inlinestatic |
Definition at line 52 of file random_acol_init.hpp.
References mlpack::math::RandInt(), and Log::Warn.
◆ Serialize()
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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
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