KernelPrincipalComponentAnalysisRevert Method (Double, Int32)

Reverts a set of projected data into it's original form. Complete reverse transformation is not always possible and is not even guaranteed to exist.

Namespace: Accord.Statistics.Analysis
Assembly: Accord.Statistics (in Accord.Statistics.dll) Version: 3.8.0

Syntax

Copy

public double[][] Revert(
	double[][] data,
	int neighbors = 10
)

Public Function Revert ( 
	data As Double()(),
	Optional neighbors As Integer = 10
) As Double()()

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Parameters

data: Type: SystemDouble
The kpca-transformed data.
neighbors (Optional): Type: SystemInt32
The number of nearest neighbors to use while constructing the pre-image.

Return Value

Type: Double

Remarks

This method works using a closed-form MDS approach as suggested by Kwok and Tsang. It is currently a direct implementation of the algorithm without any kind of optimization.

Reference: - http://cmp.felk.cvut.cz/cmp/software/stprtool/manual/kernels/preimage/list/rbfpreimg3.html

Reference

KernelPrincipalComponentAnalysis Class

Revert Overload

Accord.Statistics.Analysis Namespace