feat:添加负样本采样

.idea/jarRepositories.xml

@@ -1,6 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="RemoteRepositoriesConfiguration">
+    <remote-repository>
+      <option name="id" value="public" />
+      <option name="name" value="public" />
+      <option name="url" value="http://nexus.stuuudy.com:9580/nexus/content/groups/public/" />
+    </remote-repository>
     <remote-repository>
       <option name="id" value="central" />
       <option name="name" value="Central Repository" />

.idea/modules.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/spark-examples.iml" filepath="$PROJECT_DIR$/spark-examples.iml" />
-    </modules>
-  </component>
-</project>

src/main/scala/com/aliyun/odps/spark/examples/makedata_recsys/makedata_recsys_43_bucketData_fu_sample_20240709.scala

@@ -0,0 +1,136 @@
+package com.aliyun.odps.spark.examples.makedata_recsys
+
+import com.alibaba.fastjson.JSON
+import com.aliyun.odps.spark.examples.myUtils.{MyDateUtils, MyHdfsUtils, ParamUtils}
+import examples.extractor.ExtractorUtils
+import org.apache.hadoop.io.compress.GzipCodec
+import org.apache.spark.sql.SparkSession
+
+import scala.collection.JavaConversions._
+import scala.collection.mutable.ArrayBuffer
+import scala.io.Source
+import scala.util.Random
+/*
+
+ */
+
+object makedata_recsys_43_bucketData_fu_sample_20240709 {
+  def main(args: Array[String]): Unit = {
+
+    // 1 读取参数
+    val param = ParamUtils.parseArgs(args)
+    val readPath = param.getOrElse("readPath", "/dw/recommend/model/41_recsys_sample_data_v1/")
+    val savePath = param.getOrElse("savePath", "/dw/recommend/model/43_recsys_train_data_v1/")
+    val beginStr = param.getOrElse("beginStr", "20240703")
+    val endStr = param.getOrElse("endStr", "20240703")
+    val repartition = param.getOrElse("repartition", "100").toInt
+    val filterNames = param.getOrElse("filterNames", "").split(",").toSet
+    val whatLabel = param.getOrElse("whatLabel", "is_return")
+    val whatApps = param.getOrElse("whatApps", "0,4,5,21,3,6").split(",").toSet
+    val fuSampleRate= param.getOrElse("fuSampleRate", "0.1").toDouble
+    val fileName = param.getOrElse("fileName", "20240709_recsys_bucket_314.txt")
+
+    val spark = SparkSession
+      .builder()
+      .appName(this.getClass.getName)
+      .getOrCreate()
+    val sc = spark.sparkContext
+
+    val loader = getClass.getClassLoader
+
+    val resourceUrlBucket = loader.getResource(fileName)
+    val buckets =
+      if (resourceUrlBucket != null) {
+        val buckets = Source.fromURL(resourceUrlBucket).getLines().mkString("\n")
+        Source.fromURL(resourceUrlBucket).close()
+        buckets
+      } else {
+        ""
+      }
+    println(buckets)
+    val bucketsMap = buckets.split("\n")
+      .map(r => r.replace(" ", "").replaceAll("\n", ""))
+      .filter(r => r.nonEmpty)
+      .map(r =>{
+        val rList = r.split("\t")
+        (rList(0), (rList(1).toDouble, rList(2).split(",").map(_.toDouble)))
+      }).toMap
+    val bucketsMap_br = sc.broadcast(bucketsMap)
+
+
+
+
+    val dateRange = MyDateUtils.getDateRange(beginStr, endStr)
+    for (date <- dateRange) {
+      println("开始执行:" + date)
+      val data = sc.textFile(readPath + "/" + date + "*").map(r=>{
+        val rList = r.split("\t")
+        val logKey = rList(0)
+        val labelKey = rList(1)
+        val jsons = JSON.parseObject(rList(2))
+        val features = scala.collection.mutable.Map[String, Double]()
+        jsons.foreach(r => {
+          features.put(r._1, jsons.getDoubleValue(r._1))
+        })
+        (logKey, labelKey, features)
+      })
+        .filter{
+          case (logKey, labelKey, features) =>
+            val logKeyList = logKey.split(",")
+            val apptype = logKeyList(0)
+            val pagesource = logKeyList(1)
+            whatApps.contains(apptype) && pagesource.endsWith("recommend")
+        }.filter{
+          case (logKey, labelKey, features) =>
+            val label = JSON.parseObject(labelKey).getOrDefault(whatLabel, ")").toString
+            "1".equals(label) || new Random().nextDouble() <= fuSampleRate
+        }
+        .map{
+          case (logKey, labelKey, features) =>
+            val label = JSON.parseObject(labelKey).getOrDefault(whatLabel, "0").toString
+            (label, features)
+        }
+        .mapPartitions(row => {
+          val result = new ArrayBuffer[String]()
+          val bucketsMap = bucketsMap_br.value
+          row.foreach{
+            case (label, features) =>
+              val featuresBucket = features.map{
+                case (name, score) =>
+                  var ifFilter = false
+                  if (filterNames.nonEmpty){
+                    filterNames.foreach(r=> if (!ifFilter && name.startsWith(r)) {ifFilter = true} )
+                  }
+                  if (ifFilter){
+                    ""
+                  }else{
+                    if (score > 1E-8) {
+                      if (bucketsMap.contains(name)) {
+                        val (bucketsNum, buckets) = bucketsMap(name)
+                        val scoreNew = 1.0 / bucketsNum * (ExtractorUtils.findInsertPosition(buckets, score).toDouble + 1.0)
+                        name + ":" + scoreNew.toString
+                      } else {
+                        name + ":" + score.toString
+                      }
+                    } else {
+                      ""
+                    }
+                  }
+              }.filter(_.nonEmpty)
+              result.add(label + "\t" + featuresBucket.mkString("\t"))
+          }
+          result.iterator
+      })
+
+      // 4 保存数据到hdfs
+      val hdfsPath = savePath + "/" + date
+      if (hdfsPath.nonEmpty && hdfsPath.startsWith("/dw/recommend/model/")) {
+        println("删除路径并开始数据写入:" + hdfsPath)
+        MyHdfsUtils.delete_hdfs_path(hdfsPath)
+        data.repartition(repartition).saveAsTextFile(hdfsPath, classOf[GzipCodec])
+      } else {
+        println("路径不合法，无法写入:" + hdfsPath)
+      }
+    }
+  }
+}