程序包 org.apache.flink.ml.classification.logisticregression

类 LogisticRegressionModelDataUtil

java.lang.Object

org.apache.flink.ml.classification.logisticregression.LogisticRegressionModelDataUtil

public class LogisticRegressionModelDataUtil
extends Object

The utility class which provides methods to convert model data from Table to Datastream, and classes to save/load model data.

嵌套类概要

嵌套类

修饰符和类型	类	说明
static class	LogisticRegressionModelDataUtil.ModelDataDecoder	Data decoder for LogisticRegression and OnlineLogisticRegression.
static class	LogisticRegressionModelDataUtil.ModelDataEncoder	Data encoder for LogisticRegression and OnlineLogisticRegression.

构造器概要

构造器

构造器	说明
LogisticRegressionModelDataUtil()

方法概要

修饰符和类型	方法	说明
static org.apache.flink.table.api.Table	generateRandomModelData(org.apache.flink.table.api.bridge.java.StreamTableEnvironment tEnv, int dim, int seed)	Generates a Table containing a LogisticRegressionModelData instance with randomly generated coefficient.
static org.apache.flink.streaming.api.datastream.DataStream<byte[]>	getModelDataByteStream(org.apache.flink.table.api.Table modelDataTable)	Converts the table model to a data stream of bytes.
static org.apache.flink.streaming.api.datastream.DataStream<org.apache.flink.ml.classification.logisticregression.LogisticRegressionModelData>	getModelDataStream(org.apache.flink.table.api.Table modelData)	Converts the table model to a data stream.

从类继承的方法 java.lang.Object

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

构造器详细资料

LogisticRegressionModelDataUtil

public LogisticRegressionModelDataUtil()

方法详细资料

generateRandomModelData

public static org.apache.flink.table.api.Table generateRandomModelData(org.apache.flink.table.api.bridge.java.StreamTableEnvironment tEnv,
                                                                       int dim,
                                                                       int seed)

Generates a Table containing a LogisticRegressionModelData instance with randomly generated coefficient.

参数:

tEnv - The environment where to create the table.

dim - The size of generated coefficient.

seed - Random seed.

getModelDataStream

public static org.apache.flink.streaming.api.datastream.DataStream<org.apache.flink.ml.classification.logisticregression.LogisticRegressionModelData> getModelDataStream(org.apache.flink.table.api.Table modelData)

Converts the table model to a data stream.

参数:

modelData - The table model data.

返回:

The data stream model data.

getModelDataByteStream

public static org.apache.flink.streaming.api.datastream.DataStream<byte[]> getModelDataByteStream(org.apache.flink.table.api.Table modelDataTable)

Converts the table model to a data stream of bytes.

参数:

modelDataTable - The table of model data.

返回:

The data stream of serialized model data.