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[SPARK-11439][ML] Optimization of creating sparse feature without dense one
Sparse feature generated in LinearDataGenerator does not create dense vectors as an intermediate any more. Author: Nakul Jindal <njindal@us.ibm.com> Closes #9756 from nakul02/SPARK-11439_sparse_without_creating_dense_feature.
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- mllib/src/main/scala/org/apache/spark/mllib/util/LinearDataGenerator.scala 18 additions, 26 deletions...ala/org/apache/spark/mllib/util/LinearDataGenerator.scala
- mllib/src/test/scala/org/apache/spark/ml/evaluation/RegressionEvaluatorSuite.scala 3 additions, 3 deletions...apache/spark/ml/evaluation/RegressionEvaluatorSuite.scala
- mllib/src/test/scala/org/apache/spark/ml/regression/LinearRegressionSuite.scala 121 additions, 93 deletions...rg/apache/spark/ml/regression/LinearRegressionSuite.scala
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