Github user davideis commented on the issue:
https://github.com/apache/spark/pull/18022
Does it need another jira ticket?
On Jun 2, 2017 9:13 AM, "Nick Pentreath" <[email protected]> wrote:
> Yeah you can just open a small follow up PR
> On Fri, 2 Jun 2017 at 15:10, davideis <[email protected]> wrote:
>
> > *@davideis* commented on this pull request.
> > ------------------------------
> >
> > In mllib/src/test/scala/org/apache/spark/ml/
> recommendation/ALSSuite.scala
> > <https://github.com/apache/spark/pull/18022#discussion_r119852009>:
> >
> > > @@ -455,6 +487,22 @@ class ALSSuite
> > targetRMSE = 0.3)
> > }
> >
> > + test("implicit feedback regression") {
> > + val trainingWithNeg = sc.parallelize(Array(Rating(0, 0, 1), Rating(1,
> 1, 1), Rating(0, 1, -3)))
> > + val trainingWithZero = sc.parallelize(Array(Rating(0, 0, 1), Rating(1,
> 1, 1), Rating(0, 1, 0)))
> > + val modelWithNeg =
> > + trainALS(trainingWithNeg, rank = 1, maxIter = 5, regParam = 0.01,
> implicitPrefs = true)
> > + val modelWithZero =
> > + trainALS(trainingWithZero, rank = 1, maxIter = 5, regParam = 0.01,
> implicitPrefs = true)
> > + val userFactorsNeg = modelWithNeg.userFactors
> > + val itemFactorsNeg = modelWithNeg.itemFactors
> > + val userFactorsZero = modelWithZero.userFactors
> > + val itemFactorsZero = modelWithZero.itemFactors
> > + userFactorsNeg.collect().foreach(arr => logInfo(s"implicit test " +
> arr.mkString(" ")))
> >
> > Good point, I meant to remove, shall I open another pr?
> >
> > â
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