Github user jkbradley commented on a diff in the pull request:
https://github.com/apache/spark/pull/3636#discussion_r29171065
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/optimization/GradientDescent.scala
---
@@ -219,4 +268,30 @@ object GradientDescent extends Logging {
(weights, stochasticLossHistory.toArray)
}
+
+ def runMiniBatchSGD(
+ data: RDD[(Double, Vector)],
+ gradient: Gradient,
+ updater: Updater,
+ stepSize: Double,
+ numIterations: Int,
+ regParam: Double,
+ miniBatchFraction: Double,
+ initialWeights: Vector): (Vector, Array[Double]) =
+ GradientDescent.runMiniBatchSGD(data, gradient, updater, stepSize,
numIterations,
+ regParam, miniBatchFraction,
initialWeights, 0.001)
+
+
+ private def isConverged(previousWeights: Vector, currentWeights: Vector,
--- End diff --
scala style: Since the method header takes more than 1 line, this should
have 1 argument per line.
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