org.retro.neural
Class LinAlgFactory

java.lang.Object
  org.retro.neural.LinAlgFactory

Direct Known Subclasses:

DoubleFactory

public abstract class LinAlgFactory

extends java.lang.Object

Constructor Summary

LinAlgFactory()

Method Summary

Matrix	identity(int size) Returns the identity Matrix.
Vector	ones(int length) Returns a Vector of all ones.
Matrix	ones(int numberOfRows, int numberOfCols)
abstract FieldElement	randomValue(java.util.Random random) This method should return a random value.
Vector	uniformNoise(int length) Returns a Vector of uniformly distributed random values.
Matrix	uniformNoise(int numberOfRows, int numberOfCols) Returns a Matrix of uniformly distributed random values.
Matrix	uniformNoise(int numberOfRows, int numberOfCols, long seed) Returns a Matrix of uniformly distributed random values.
Matrix	uniformNoise(int numberOfRows, int numberOfCols, java.util.Random random) Returns a Matrix of uniformly distributed random values.
Vector	uniformNoise(int length, long seed) Returns a Vector of uniformly distributed random values.
Vector	uniformNoise(int length, java.util.Random random) Returns a Vector of uniformly distributed random values.
abstract FieldElement	unityValue() This method should return a FieldElement corresponding to unity (1), the neutral element of multiplication.
Vector	zeros(int length) Returns a Vector of all zeros.
Matrix	zeros(int numberOfRows, int numberOfCols) Returns a Matrix of all zeros.
abstract FieldElement	zeroValue() This method should return a FieldElement corresponding to zero (0), the neutral element of addition.

Methods inherited from class java.lang.Object

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

Constructor Detail

LinAlgFactory

public LinAlgFactory()

Method Detail

ones

public Matrix ones(int numberOfRows,
                   int numberOfCols)

zeros

public Matrix zeros(int numberOfRows,
                    int numberOfCols)

Returns a Matrix of all zeros.

Parameters:

numberOfRows -

numberOfCols -

Returns:

matrix of zeros

uniformNoise

public Matrix uniformNoise(int numberOfRows,
                           int numberOfCols,
                           java.util.Random random)

Returns a Matrix of uniformly distributed random values.

Parameters:

numberOfRows -

numberOfCols -

random - random-number generator

Returns:

matrix of uniformly distributed random values

uniformNoise

public Matrix uniformNoise(int numberOfRows,
                           int numberOfCols,
                           long seed)

Returns a Matrix of uniformly distributed random values.

Parameters:

numberOfRows -

numberOfCols -

seed - seed for random-number generator

Returns:

matrix of uniformly distributed random values

uniformNoise

public Matrix uniformNoise(int numberOfRows,
                           int numberOfCols)

Returns a Matrix of uniformly distributed random values.

Parameters:

numberOfRows -

numberOfCols -

Returns:

matrix of uniformly distributed random values

ones

public Vector ones(int length)

Returns a Vector of all ones.

Parameters:

length - vector length

Returns:

vector of ones

zeros

public Vector zeros(int length)

Returns a Vector of all zeros.

Parameters:

length - vector length

Returns:

vector of zeros

uniformNoise

public Vector uniformNoise(int length,
                           java.util.Random random)

Returns a Vector of uniformly distributed random values.

Parameters:

length - vector length

random - random-number generator

Returns:

vector of uniformly distributed random values

uniformNoise

public Vector uniformNoise(int length,
                           long seed)

Returns a Vector of uniformly distributed random values.

Parameters:

length - vector length

seed - seed for random-number generator

Returns:

vector of uniformly distributed random values

uniformNoise

public Vector uniformNoise(int length)

Returns a Vector of uniformly distributed random values.

Parameters:

length - vector length

Returns:

vector of uniformly distributed random values

identity

public Matrix identity(int size)

Returns the identity Matrix. This is a square matrix with ones on its diagonal and zeros elsewhere.

Parameters:

size - number of rows (= number of columns)

Returns:

identity matrix

unityValue

public abstract FieldElement unityValue()

This method should return a FieldElement corresponding to unity (1), the neutral element of multiplication.

Returns:

one

zeroValue

public abstract FieldElement zeroValue()

This method should return a FieldElement corresponding to zero (0), the neutral element of addition.

Returns:

zero

randomValue

public abstract FieldElement randomValue(java.util.Random random)

This method should return a random value.

Returns:

random value