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[SPARK-11813] [MLlib] Avoid serialization of vocab in Word2Vec #9803

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[SPARK-11813] [MLlib] Avoid serialization of vocab in Word2Vec #9803

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4 changes: 2 additions & 2 deletions mllib/src/main/scala/org/apache/spark/mllib/feature/Word2Vec.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -145,8 +145,8 @@ class Word2Vec extends Serializable with Logging {

private var trainWordsCount = 0
private var vocabSize = 0
private var vocab: Array[VocabWord] = null
private var vocabHash = mutable.HashMap.empty[String, Int]
@transient private var vocab: Array[VocabWord] = null
@transient private var vocabHash = mutable.HashMap.empty[String, Int]

private def learnVocab(words: RDD[String]): Unit = {
vocab = words.map(w => (w, 1))
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