org.locationtech.geowave.analytic.clustering

Class DistortionGroupManagement

java.lang.Object

org.locationtech.geowave.analytic.clustering.DistortionGroupManagement

public class DistortionGroupManagement
extends Object

Find the max change in distortion between some k and k-1, picking the value k associated with that change.

In a multi-group setting, each group may have a different optimal k. Thus, the optimal batch may be different for each group. Each batch is associated with a different value k.

Choose the appropriate batch for each group. Then change the batch identifier for group centroids to a final provided single batch identifier ( parent batch ).

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DistortionGroupManagement.BatchIdFilter
static class	DistortionGroupManagement.BatchIdQuery
static class	DistortionGroupManagement.DistortionDataAdapter
static class	DistortionGroupManagement.DistortionEntry

Field Summary

Fields

Modifier and Type	Field and Description
static org.locationtech.geowave.core.store.api.Index	DISTORTIONS_INDEX
static String[]	DISTORTIONS_INDEX_ARRAY

Constructor Summary

Constructors

Constructor and Description
DistortionGroupManagement(org.locationtech.geowave.core.store.cli.store.DataStorePluginOptions dataStoreOptions)

Method Summary

Modifier and Type	Method and Description
<T> int	retainBestGroups(AnalyticItemWrapperFactory<T> itemWrapperFactory, String dataTypeId, String indexId, String batchId, int level)

Methods inherited from class java.lang.Object

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

Field Detail

DISTORTIONS_INDEX

public static final org.locationtech.geowave.core.store.api.Index DISTORTIONS_INDEX

DISTORTIONS_INDEX_ARRAY

public static final String[] DISTORTIONS_INDEX_ARRAY

Constructor Detail

DistortionGroupManagement

public DistortionGroupManagement(org.locationtech.geowave.core.store.cli.store.DataStorePluginOptions dataStoreOptions)

Method Detail

retainBestGroups

public <T> int retainBestGroups(AnalyticItemWrapperFactory<T> itemWrapperFactory,
                                String dataTypeId,
                                String indexId,
                                String batchId,
                                int level)