TwoPassMultivariateGaussianModelFactory (ELKI: Environment for DeveLoping KDD-Applications Supported by Index-Structures)

java.lang.Object
- elki.clustering.em.models.TwoPassMultivariateGaussianModelFactory

All Implemented Interfaces:

EMClusterModelFactory<NumberVector,EMModel>
```
public class TwoPassMultivariateGaussianModelFactory
extends java.lang.Object
implements EMClusterModelFactory<NumberVector,EMModel>
```
Factory for EM with multivariate Gaussian models (with covariance; also known as Gaussian Mixture Modeling, GMM).
These models have individual covariance matrixes, so this corresponds to the 'VVV' model in Mclust (R).

Since:

0.7.5

Author:

Erich Schubert

Field Summary

Fields
Modifier and Type Field Description

protected KMeansInitialization initializer
Class to choose the initial means
- Fields inherited from interface elki.clustering.em.models.EMClusterModelFactory
  INIT_ID

Constructor Summary

Constructors
Constructor Description

TwoPassMultivariateGaussianModelFactory(KMeansInitialization initializer)
Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.util.List<TwoPassMultivariateGaussianModel>`	`buildInitialModels(Relation<? extends NumberVector> relation, int k)`	Build the initial models

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - initializer
```
protected KMeansInitialization initializer
```
    Class to choose the initial means
- Constructor Detail
  - TwoPassMultivariateGaussianModelFactory
```
public TwoPassMultivariateGaussianModelFactory(KMeansInitialization initializer)
```
    Constructor.
    
    Parameters:
    
    initializer - Class for choosing the initial seeds.
- Method Detail
  - buildInitialModels
```
public java.util.List<TwoPassMultivariateGaussianModel> buildInitialModels(Relation<? extends NumberVector> relation,
                                                                           int k)
```
    Description copied from interface: EMClusterModelFactory
    
    Build the initial models
    
    Specified by:
    
    buildInitialModels in interface EMClusterModelFactory<NumberVector,EMModel>
    
    Parameters:
    
    relation - Relation
    
    k - Number of clusters
    
    Returns:
    
    Initial models