Package ai.libs.jaicore.ml.core.filter.sampling.inmemory.stratified.sampling

Class AttributeBasedStratiAmountSelectorAndAssigner

java.lang.Object

ai.libs.jaicore.ml.core.filter.sampling.inmemory.stratified.sampling.AttributeBasedStratiAmountSelectorAndAssigner

All Implemented Interfaces:

IStratiAmountSelector, IStratiAssigner, org.api4.java.common.control.ILoggingCustomizable, org.api4.java.common.control.IParallelizable

public class AttributeBasedStratiAmountSelectorAndAssigner
extends java.lang.Object
implements IStratiAmountSelector, IStratiAssigner, org.api4.java.common.control.ILoggingCustomizable

This class is responsible for computing the amount of strati in attribute-based stratified sampling and assigning elements to the strati.

Constructor Summary

Constructors

Constructor	Description
AttributeBasedStratiAmountSelectorAndAssigner()	SCALE-54: Explicitly allow to not provide an attribute list
AttributeBasedStratiAmountSelectorAndAssigner(java.util.List<java.lang.Integer> attributeIndices)
AttributeBasedStratiAmountSelectorAndAssigner(java.util.List<java.lang.Integer> attributeIndices, DiscretizationHelper.DiscretizationStrategy discretizationStrategy, int numberOfCategories)
AttributeBasedStratiAmountSelectorAndAssigner(java.util.List<java.lang.Integer> attributeIndices, java.util.Map<java.lang.Integer,AttributeDiscretizationPolicy> discretizationPolicies)

Method Summary

Modifier and Type	Method	Description
int	assignToStrati(org.api4.java.ai.ml.core.dataset.IInstance datapoint)	Custom logic for assigning datapoints into strati.
java.lang.String	getLoggerName()
int	getNumCPUs()
void	init(org.api4.java.ai.ml.core.dataset.IDataset<?> dataset)
void	init(org.api4.java.ai.ml.core.dataset.IDataset<?> dataset, int stratiAmount)	Initialize custom assigner if necessary.
int	selectStratiAmount(org.api4.java.ai.ml.core.dataset.IDataset<?> dataset)	Select a suitable amount of strati for a Dataset.
void	setLoggerName(java.lang.String name)
void	setNumCPUs(int numberOfCPUs)

Methods inherited from class java.lang.Object

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

Constructor Detail

AttributeBasedStratiAmountSelectorAndAssigner

public AttributeBasedStratiAmountSelectorAndAssigner()

SCALE-54: Explicitly allow to not provide an attribute list

AttributeBasedStratiAmountSelectorAndAssigner

public AttributeBasedStratiAmountSelectorAndAssigner(java.util.List<java.lang.Integer> attributeIndices)

AttributeBasedStratiAmountSelectorAndAssigner

public AttributeBasedStratiAmountSelectorAndAssigner(java.util.List<java.lang.Integer> attributeIndices,
                                                     DiscretizationHelper.DiscretizationStrategy discretizationStrategy,
                                                     int numberOfCategories)

AttributeBasedStratiAmountSelectorAndAssigner

public AttributeBasedStratiAmountSelectorAndAssigner(java.util.List<java.lang.Integer> attributeIndices,
                                                     java.util.Map<java.lang.Integer,AttributeDiscretizationPolicy> discretizationPolicies)

Method Detail

selectStratiAmount

public int selectStratiAmount(org.api4.java.ai.ml.core.dataset.IDataset<?> dataset)

Description copied from interface: IStratiAmountSelector

Select a suitable amount of strati for a Dataset.

Specified by:

selectStratiAmount in interface IStratiAmountSelector

Parameters:

dataset - The dataset that will be stratified.

Returns:

The determined amount of strati.

setNumCPUs

public void setNumCPUs(int numberOfCPUs)

Specified by:

setNumCPUs in interface org.api4.java.common.control.IParallelizable

getNumCPUs

public int getNumCPUs()

Specified by:

getNumCPUs in interface org.api4.java.common.control.IParallelizable

init

public void init(org.api4.java.ai.ml.core.dataset.IDataset<?> dataset)

init

public void init(org.api4.java.ai.ml.core.dataset.IDataset<?> dataset,
                 int stratiAmount)

Description copied from interface: IStratiAssigner

Initialize custom assigner if necessary.

Specified by:

init in interface IStratiAssigner

Parameters:

dataset - The dataset the datapoints will be sampled from.

stratiAmount - The predetermined amount of strati the dataset will be stratified into.

assignToStrati

public int assignToStrati(org.api4.java.ai.ml.core.dataset.IInstance datapoint)

Description copied from interface: IStratiAssigner

Custom logic for assigning datapoints into strati.

Specified by:

assignToStrati in interface IStratiAssigner

Parameters:

datapoint - The datapoint that has to be assigned.

Returns:

The index of the strati the datapoint will be assigned into.

getLoggerName

public java.lang.String getLoggerName()

Specified by:

getLoggerName in interface org.api4.java.common.control.ILoggingCustomizable

setLoggerName

public void setLoggerName(java.lang.String name)

Specified by:

setLoggerName in interface org.api4.java.common.control.ILoggingCustomizable