yunfengzhou-hub commented on a change in pull request #71: URL: https://github.com/apache/flink-ml/pull/71#discussion_r840197583
########## File path: flink-ml-benchmark/src/main/java/org/apache/flink/ml/benchmark/generator/GeneratorUtils.java ########## @@ -0,0 +1,129 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.flink.ml.benchmark.generator; + +import org.apache.flink.api.common.functions.RichMapFunction; +import org.apache.flink.api.common.typeinfo.BasicTypeInfo; +import org.apache.flink.api.java.tuple.Tuple2; +import org.apache.flink.configuration.Configuration; +import org.apache.flink.ml.linalg.DenseVector; +import org.apache.flink.ml.linalg.Vectors; +import org.apache.flink.streaming.api.datastream.DataStream; +import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; +import org.apache.flink.util.NumberSequenceIterator; + +import java.util.Random; + +/** Utility methods to generate data for benchmarks. */ +public class GeneratorUtils { + /** + * Generates random continuous vectors. + * + * @param env The stream execution environment. + * @param numData Number of examples to generate in total. + * @param seed The seed to generate seed on each partition. + * @param dims Dimension of the vectors to be generated. + * @return The generated vector stream. + */ + public static DataStream<DenseVector> generateRandomContinuousVectorStream( Review comment: We might have `discreteVectorStream` in future that only contains 0 and 1. But I agree that we can remove the word `continuous` from the method name, and maybe in future we can add an option on this method or class for users to specify how they would like the values to distribute in the generated vectors. Given that we are introducing classes like `DenseVectorArrayGenerator`, `GeneratorUtils` would be removed so the rest of this comment is not applicable now. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
