org.apache.ignite.ml.tree.impurity.util

Class SimpleStepFunctionCompressor<T extends ImpurityMeasure<T>>

java.lang.Object

org.apache.ignite.ml.tree.impurity.util.SimpleStepFunctionCompressor<T>

Type Parameters:

T - Type of step function values.

All Implemented Interfaces:

Serializable, StepFunctionCompressor<T>

public class SimpleStepFunctionCompressor<T extends ImpurityMeasure<T>>
extends Object
implements StepFunctionCompressor<T>

Simple step function compressor.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SimpleStepFunctionCompressor() Constructs a new instance of simple step function compressor with default parameters.
SimpleStepFunctionCompressor(int minSizeToBeCompressed, double minImpurityIncreaseForRecord, double minImpurityDecreaseForRecord) Constructs a new instance of simple step function compressor.

Method Summary

Modifier and Type	Method and Description
StepFunction<T>	compress(StepFunction<T> function) Compresses the given step function.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.ignite.ml.tree.impurity.util.StepFunctionCompressor

compress

Constructor Detail

SimpleStepFunctionCompressor

public SimpleStepFunctionCompressor()

Constructs a new instance of simple step function compressor with default parameters.

SimpleStepFunctionCompressor

public SimpleStepFunctionCompressor(int minSizeToBeCompressed,
                                    double minImpurityIncreaseForRecord,
                                    double minImpurityDecreaseForRecord)

Constructs a new instance of simple step function compressor.

Parameters:

minSizeToBeCompressed - Min size of step function to be compressed.

minImpurityIncreaseForRecord - In case of compression min impurity increase that will be recorded.

minImpurityDecreaseForRecord - In case of compression min impurity decrease that will be recorded.

Method Detail

compress

public StepFunction<T> compress(StepFunction<T> function)

Compresses the given step function.

Specified by:

compress in interface StepFunctionCompressor<T extends ImpurityMeasure<T>>

Parameters:

function - Step function.

Returns:

Compressed step function.