jsat.classifiers.linear

Class LinearBatch.GradFunction

java.lang.Object

jsat.classifiers.linear.LinearBatch.GradFunction

All Implemented Interfaces:

FunctionVec

Enclosing class:

LinearBatch

public class LinearBatch.GradFunction
extends Object
implements FunctionVec

Function for using the single weight vector loss functions related to LossC and LossR

Constructor Summary

Constructors

Constructor and Description
GradFunction(DataSet D, LossFunc loss)

Method Summary

Modifier and Type	Method and Description
Vec	f(double... x) Computes the function value given the input x
Vec	f(Vec w) Computes the function value given the input x
Vec	f(Vec w, Vec s) Computes the function value given the input x
Vec	f(Vec w, Vec s, ExecutorService ex) Computes the function value given the input x

Methods inherited from class java.lang.Object

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

Constructor Detail

GradFunction

public GradFunction(DataSet D,
                    LossFunc loss)

Method Detail

f

public Vec f(double... x)

Description copied from interface: FunctionVec

Computes the function value given the input x

Specified by:

f in interface FunctionVec

Parameters:

x - the input to compute the output from

Returns:

the vector containing the results

f

public Vec f(Vec w)

Description copied from interface: FunctionVec

Computes the function value given the input x

Specified by:

f in interface FunctionVec

Parameters:

w - the input to compute the output from

Returns:

the vector containing the results

f

public Vec f(Vec w,
             Vec s)

Description copied from interface: FunctionVec

Computes the function value given the input x

Specified by:

f in interface FunctionVec

Parameters:

w - the input to compute the output from

s - the vector to store the result in, or null if a new vector should be allocated

Returns:

the vector containing the results. This is the same object as s if s is not null

f

public Vec f(Vec w,
             Vec s,
             ExecutorService ex)

Description copied from interface: FunctionVec

Computes the function value given the input x

Specified by:

f in interface FunctionVec

Parameters:

w - the input to compute the output from

s - the vector to store the result in, or null if a new vector should be allocated

ex - the source of threads to use for the computation

Returns:

the vector containing the results. This is the same object as s of s is not null