SigmoidalKernel

java.lang.Object
- libai.common.kernels.SigmoidalKernel

All Implemented Interfaces:

java.io.Serializable, Kernel
```
public class SigmoidalKernel
extends java.lang.Object
implements Kernel
```
Sigmoid Kernel. Follows the form: K(x,y) = tanh(a * xy + b), where a & b are parameters of this kernel.

See Also:

Serialized Form

- Constructor Summary
  
  Constructors
  Constructor Description
  
  SigmoidalKernel(double a, double b)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  double eval(Matrix A, Matrix B)
  Evaluates a kernel between the two Vectors .
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - SigmoidalKernel
```
public SigmoidalKernel(double a,
                       double b)
```
- Method Detail
  - eval
```
public double eval(Matrix A,
                   Matrix B)
```
    Description copied from interface: Kernel
    
    Evaluates a kernel between the two Vectors .
    
    Specified by:
    
    eval in interface Kernel
    
    Parameters:
    
    A - The first pattern to calculate the kernel
    
    B - The second pattern to calculate the kernel
    
    Returns:
    
    A double with the value of the calculated kernel