org.deeplearning4j.clustering.cluster

Class ClusterUtils

java.lang.Object

org.deeplearning4j.clustering.cluster.ClusterUtils

public class ClusterUtils
extends Object

Basic cluster utilities

Constructor Summary

Constructors

Constructor and Description
ClusterUtils()

Method Summary

Modifier and Type	Method and Description
static boolean	applyOptimization(OptimisationStrategy optimization, ClusterSet clusterSet, ClusterSetInfo clusterSetInfo, ExecutorService executor)
static PointClassification	classifyPoint(ClusterSet clusterSet, Point point)
static ClusterSetInfo	classifyPoints(ClusterSet clusterSet, List<Point> points, ExecutorService executorService)
static ClusterInfo	computeClusterInfos(Cluster cluster, String distanceFunction)
static ClusterSetInfo	computeClusterSetInfo(ClusterSet clusterSet)
static ClusterSetInfo	computeClusterSetInfo(ClusterSet clusterSet, ExecutorService executorService)
static org.nd4j.linalg.api.ndarray.INDArray	computeSquareDistancesFromNearestCluster(ClusterSet clusterSet, List<Point> points, org.nd4j.linalg.api.ndarray.INDArray previousDxs, ExecutorService executorService)
static void	deriveClusterInfoDistanceStatistics(ClusterInfo info)
static List<Cluster>	getClustersWhereAverageDistanceFromCenterGreaterThan(ClusterSet clusterSet, ClusterSetInfo info, double maximumAverageDistance)
static List<Cluster>	getClustersWhereMaximumDistanceFromCenterGreaterThan(ClusterSet clusterSet, ClusterSetInfo info, double maximumDistance)
static List<Cluster>	getMostSpreadOutClusters(ClusterSet clusterSet, ClusterSetInfo info, int count)
static void	refreshClusterCenter(Cluster cluster, ClusterInfo clusterInfo)
static void	refreshClustersCenters(ClusterSet clusterSet, ClusterSetInfo clusterSetInfo, ExecutorService executorService)
static void	splitClusters(ClusterSet clusterSet, ClusterSetInfo clusterSetInfo, List<Cluster> clusters, double maxDistance, ExecutorService executorService)
static void	splitClusters(ClusterSet clusterSet, ClusterSetInfo clusterSetInfo, List<Cluster> clusters, ExecutorService executorService)
static int	splitClustersWhereAverageDistanceFromCenterGreaterThan(ClusterSet clusterSet, ClusterSetInfo clusterSetInfo, double maxWithinClusterDistance, ExecutorService executorService)
static int	splitClustersWhereMaximumDistanceFromCenterGreaterThan(ClusterSet clusterSet, ClusterSetInfo clusterSetInfo, double maxWithinClusterDistance, ExecutorService executorService)
static void	splitMostPopulatedClusters(ClusterSet clusterSet, ClusterSetInfo clusterSetInfo, int count, ExecutorService executorService)
static int	splitMostSpreadOutClusters(ClusterSet clusterSet, ClusterSetInfo clusterSetInfo, int count, ExecutorService executorService)

Methods inherited from class java.lang.Object

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

Constructor Detail

ClusterUtils

public ClusterUtils()

Method Detail

classifyPoints

public static ClusterSetInfo classifyPoints(ClusterSet clusterSet,
                                            List<Point> points,
                                            ExecutorService executorService)

classifyPoint

public static PointClassification classifyPoint(ClusterSet clusterSet,
                                                Point point)

refreshClustersCenters

public static void refreshClustersCenters(ClusterSet clusterSet,
                                          ClusterSetInfo clusterSetInfo,
                                          ExecutorService executorService)

refreshClusterCenter

public static void refreshClusterCenter(Cluster cluster,
                                        ClusterInfo clusterInfo)

deriveClusterInfoDistanceStatistics

public static void deriveClusterInfoDistanceStatistics(ClusterInfo info)

computeSquareDistancesFromNearestCluster

public static org.nd4j.linalg.api.ndarray.INDArray computeSquareDistancesFromNearestCluster(ClusterSet clusterSet,
                                                                                            List<Point> points,
                                                                                            org.nd4j.linalg.api.ndarray.INDArray previousDxs,
                                                                                            ExecutorService executorService)

computeClusterSetInfo

public static ClusterSetInfo computeClusterSetInfo(ClusterSet clusterSet)

computeClusterSetInfo

public static ClusterSetInfo computeClusterSetInfo(ClusterSet clusterSet,
                                                   ExecutorService executorService)

computeClusterInfos

public static ClusterInfo computeClusterInfos(Cluster cluster,
                                              String distanceFunction)

applyOptimization

public static boolean applyOptimization(OptimisationStrategy optimization,
                                        ClusterSet clusterSet,
                                        ClusterSetInfo clusterSetInfo,
                                        ExecutorService executor)

getMostSpreadOutClusters

public static List<Cluster> getMostSpreadOutClusters(ClusterSet clusterSet,
                                                     ClusterSetInfo info,
                                                     int count)

getClustersWhereAverageDistanceFromCenterGreaterThan

public static List<Cluster> getClustersWhereAverageDistanceFromCenterGreaterThan(ClusterSet clusterSet,
                                                                                 ClusterSetInfo info,
                                                                                 double maximumAverageDistance)

getClustersWhereMaximumDistanceFromCenterGreaterThan

public static List<Cluster> getClustersWhereMaximumDistanceFromCenterGreaterThan(ClusterSet clusterSet,
                                                                                 ClusterSetInfo info,
                                                                                 double maximumDistance)

splitMostSpreadOutClusters

public static int splitMostSpreadOutClusters(ClusterSet clusterSet,
                                             ClusterSetInfo clusterSetInfo,
                                             int count,
                                             ExecutorService executorService)

splitClustersWhereAverageDistanceFromCenterGreaterThan

public static int splitClustersWhereAverageDistanceFromCenterGreaterThan(ClusterSet clusterSet,
                                                                         ClusterSetInfo clusterSetInfo,
                                                                         double maxWithinClusterDistance,
                                                                         ExecutorService executorService)

splitClustersWhereMaximumDistanceFromCenterGreaterThan

public static int splitClustersWhereMaximumDistanceFromCenterGreaterThan(ClusterSet clusterSet,
                                                                         ClusterSetInfo clusterSetInfo,
                                                                         double maxWithinClusterDistance,
                                                                         ExecutorService executorService)

splitMostPopulatedClusters

public static void splitMostPopulatedClusters(ClusterSet clusterSet,
                                              ClusterSetInfo clusterSetInfo,
                                              int count,
                                              ExecutorService executorService)

splitClusters

public static void splitClusters(ClusterSet clusterSet,
                                 ClusterSetInfo clusterSetInfo,
                                 List<Cluster> clusters,
                                 double maxDistance,
                                 ExecutorService executorService)

splitClusters

public static void splitClusters(ClusterSet clusterSet,
                                 ClusterSetInfo clusterSetInfo,
                                 List<Cluster> clusters,
                                 ExecutorService executorService)