ml.shifu.guagua.example.lr

Class LogisticRegressionParams

java.lang.Object

ml.shifu.guagua.io.HaltBytable

ml.shifu.guagua.example.lr.LogisticRegressionParams

All Implemented Interfaces:

ml.shifu.guagua.io.Bytable

public class LogisticRegressionParams
extends ml.shifu.guagua.io.HaltBytable

A model class to store logistic regression weight on first iteration by using parameters, while in other iterations parameters is used to store gradients.

To make all workers started at the same model, master will compute a consistent model weights at the first iteration and then send to all the workers. Workers will start computing from the second iteration.

Workers are responsible to compute local accumulated gradients and send to master while master accumulates all gradients together to build a global model.

Constructor Summary

Constructors

Constructor and Description
LogisticRegressionParams()
LogisticRegressionParams(double[] parameters)
LogisticRegressionParams(double[] parameters, double error)

Method Summary

Modifier and Type	Method and Description
void	doReadFields(DataInput in)
void	doWrite(DataOutput out)
double	getError()
double[]	getParameters()
void	setError(double error)
void	setParameters(double[] parameters)

Methods inherited from class ml.shifu.guagua.io.HaltBytable

isHalt, readFields, setHalt, write

Methods inherited from class java.lang.Object

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

Constructor Detail

LogisticRegressionParams

public LogisticRegressionParams()

LogisticRegressionParams

public LogisticRegressionParams(double[] parameters)

LogisticRegressionParams

public LogisticRegressionParams(double[] parameters,
                                double error)

Method Detail

getParameters

public double[] getParameters()

setParameters

public void setParameters(double[] parameters)

getError

public double getError()

setError

public void setError(double error)

doWrite

public void doWrite(DataOutput out)
             throws IOException

Specified by:

doWrite in class ml.shifu.guagua.io.HaltBytable

Throws:

IOException

doReadFields

public void doReadFields(DataInput in)
                  throws IOException

Specified by:

doReadFields in class ml.shifu.guagua.io.HaltBytable

Throws:

IOException