libsvm
Class Kernel

java.lang.Object
  libsvm.QMatrix
      libsvm.Kernel

Direct Known Subclasses:

ONE_CLASS_Q, SVC_Q, SVR_Q

abstract class Kernel
extends QMatrix

Field Summary

private double	coef0
private int	degree
private FeatureRepresentation	fr
private double	gamma
private int	kernel_type
private boolean	useExpectedValues
private svm_node[][]	x
private double[]	x_square

Constructor Summary

Kernel(int l, svm_node[][] x_, svm_parameter param)

Method Summary

(package private) static double	dot(svm_node[] x, svm_node[] y, FeatureRepresentation fr, boolean useExpectedValues)
(package private) abstract float[]	get_Q(int column, int len)
(package private) abstract float[]	get_QD()
(package private) static double	k_function(svm_node[] x, svm_node[] y, svm_parameter param)
(package private) double	kernel_function(int i)
(package private) double	kernel_function(int i, int j)
private static double	powi(double base, int times)
(package private) void	swap_index(int i, int j)
private static double	tanh(double x)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

x

private svm_node[][] x

x_square

private final double[] x_square

kernel_type

private final int kernel_type

degree

private final int degree

gamma

private final double gamma

coef0

private final double coef0

fr

private final FeatureRepresentation fr

useExpectedValues

private final boolean useExpectedValues

Constructor Detail

Kernel

Kernel(int l,
       svm_node[][] x_,
       svm_parameter param)

Method Detail

get_Q

abstract float[] get_Q(int column,
                       int len)

Specified by:

get_Q in class QMatrix

get_QD

abstract float[] get_QD()

Specified by:

get_QD in class QMatrix

swap_index

void swap_index(int i,
                int j)

Specified by:

swap_index in class QMatrix

powi

private static double powi(double base,
                           int times)

tanh

private static double tanh(double x)

kernel_function

double kernel_function(int i,
                       int j)

kernel_function

double kernel_function(int i)

dot

static double dot(svm_node[] x,
                  svm_node[] y,
                  FeatureRepresentation fr,
                  boolean useExpectedValues)

k_function

static double k_function(svm_node[] x,
                         svm_node[] y,
                         svm_parameter param)