SigmoidKernel (biojava-legacy 1.9.7 API)

java.lang.Object

org.biojava.stats.svm.SigmoidKernel

All Implemented Interfaces:: SVMKernel

public class SigmoidKernel extends Object implements SVMKernel

This kernel implements a three layer neural net. This is calculated as: tanh(a*k(x,y)+c)

Author:: Matthew Pocock

Constructor Summary

Constructors

Constructor

Description

SigmoidKernel()
Method Summary

Modifier and Type

Method

Description

double

evaluate(Object a, Object b)

Return the dot product of two vectors in an arbitrary feature space.

double

getConstant()

double

getMultiplier()

SVMKernel

getWrappedKernel()

void

setConstant(double c)

void

setMultiplier(double m)

void

setWrappedKernel(SVMKernel kernel)

double

tanh(double a)

String

toString()

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

Constructor Details
- SigmoidKernel
  
  public SigmoidKernel()
Method Details
- evaluate
  
  public double evaluate(Object a, Object b)
  
  Description copied from interface: SVMKernel
  
  Return the dot product of two vectors in an arbitrary feature space. In this implementation, the `vectors' can actually be arbitrary objects.
  
  Specified by:
  
  evaluate in interface SVMKernel
- getConstant
  
  public double getConstant()
- setConstant
  
  public void setConstant(double c)
- getMultiplier
  
  public double getMultiplier()
- setMultiplier
  
  public void setMultiplier(double m)
- getWrappedKernel
  
  public SVMKernel getWrappedKernel()
- setWrappedKernel
  
  public void setWrappedKernel(SVMKernel kernel)
- toString
  
  public String toString()
  
  Overrides:
  
  toString in class Object
- tanh
  
  public double tanh(double a)