程序包 org.apache.flink.ml.clustering.agglomerativeclustering

类 AgglomerativeClustering

java.lang.Object

org.apache.flink.ml.clustering.agglomerativeclustering.AgglomerativeClustering

所有已实现的接口:

Serializable, org.apache.flink.ml.api.AlgoOperator<AgglomerativeClustering>, org.apache.flink.ml.api.Stage<AgglomerativeClustering>, AgglomerativeClusteringParams<AgglomerativeClustering>, org.apache.flink.ml.common.param.HasDistanceMeasure<AgglomerativeClustering>, org.apache.flink.ml.common.param.HasFeaturesCol<AgglomerativeClustering>, org.apache.flink.ml.common.param.HasPredictionCol<AgglomerativeClustering>, HasWindows<AgglomerativeClustering>, org.apache.flink.ml.param.WithParams<AgglomerativeClustering>

public class AgglomerativeClustering
extends Object
implements org.apache.flink.ml.api.AlgoOperator<AgglomerativeClustering>, AgglomerativeClusteringParams<AgglomerativeClustering>

An AlgoOperator that performs a hierarchical clustering using a bottom-up approach. Each observation starts in its own cluster and the clusters are merged together one by one. Users can choose different strategies to merge two clusters by setting AgglomerativeClusteringParams.LINKAGE and different distance measures by setting HasDistanceMeasure.DISTANCE_MEASURE.

The output contains two tables. The first one assigns one cluster Id for each data point. The second one contains the information of merging two clusters at each step. The data format of the merging information is (clusterId1, clusterId2, distance, sizeOfMergedCluster).

This AlgoOperator splits input stream into mini-batches of elements according to the windowing strategy specified by the HasWindows parameter, and performs the hierarchical clustering on each mini-batch independently. The clustering result of each element depends only on the elements in the same mini-batch.

See https://en.wikipedia.org/wiki/Hierarchical_clustering.

另请参阅:

序列化表格

字段概要

从接口继承的字段 org.apache.flink.ml.clustering.agglomerativeclustering.AgglomerativeClusteringParams

COMPUTE_FULL_TREE, DISTANCE_THRESHOLD, LINKAGE, LINKAGE_AVERAGE, LINKAGE_COMPLETE, LINKAGE_SINGLE, LINKAGE_WARD, NUM_CLUSTERS

从接口继承的字段 org.apache.flink.ml.common.param.HasDistanceMeasure

DISTANCE_MEASURE

从接口继承的字段 org.apache.flink.ml.common.param.HasFeaturesCol

FEATURES_COL

从接口继承的字段 org.apache.flink.ml.common.param.HasPredictionCol

PREDICTION_COL

从接口继承的字段 org.apache.flink.ml.common.param.HasWindows

WINDOWS

构造器概要

构造器

构造器	说明
AgglomerativeClustering()

方法概要

修饰符和类型	方法	说明
Map<org.apache.flink.ml.param.Param<?>,Object>	getParamMap()
static AgglomerativeClustering	load(org.apache.flink.table.api.bridge.java.StreamTableEnvironment tEnv, String path)
void	save(String path)
org.apache.flink.table.api.Table[]	transform(org.apache.flink.table.api.Table... inputs)

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.ml.clustering.agglomerativeclustering.AgglomerativeClusteringParams

getComputeFullTree, getDistanceThreshold, getLinkage, getNumClusters, setComputeFullTree, setDistanceThreshold, setLinkage, setNumClusters

从接口继承的方法 org.apache.flink.ml.common.param.HasDistanceMeasure

getDistanceMeasure, setDistanceMeasure

从接口继承的方法 org.apache.flink.ml.common.param.HasFeaturesCol

getFeaturesCol, setFeaturesCol

从接口继承的方法 org.apache.flink.ml.common.param.HasPredictionCol

getPredictionCol, setPredictionCol

从接口继承的方法 org.apache.flink.ml.common.param.HasWindows

getWindows, setWindows

从接口继承的方法 org.apache.flink.ml.param.WithParams

get, getParam, set

构造器详细资料

AgglomerativeClustering

public AgglomerativeClustering()

方法详细资料

transform

public org.apache.flink.table.api.Table[] transform(org.apache.flink.table.api.Table... inputs)

指定者:

transform 在接口中 org.apache.flink.ml.api.AlgoOperator<AgglomerativeClustering>

save

public void save(String path)
          throws IOException

指定者:

save 在接口中 org.apache.flink.ml.api.Stage<AgglomerativeClustering>

抛出:

IOException

load

public static AgglomerativeClustering load(org.apache.flink.table.api.bridge.java.StreamTableEnvironment tEnv,
                                           String path)
                                    throws IOException

抛出:

IOException

getParamMap

public Map<org.apache.flink.ml.param.Param<?>,Object> getParamMap()

指定者:

getParamMap 在接口中 org.apache.flink.ml.param.WithParams<AgglomerativeClustering>