Github user mengxr commented on a diff in the pull request:
https://github.com/apache/spark/pull/460#discussion_r11985263
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/recommendation/ALS.scala ---
@@ -627,6 +684,37 @@ object ALS {
* @param blocks level of parallelism to split computation into
* @param alpha confidence parameter (only applies when
immplicitPrefs = true)
* @param seed random seed
+ * @param nonnegative Whether to impose nonnegativity upon the user and
product factors
+ */
+ def trainImplicit(
+ ratings: RDD[Rating],
+ rank: Int,
+ iterations: Int,
+ lambda: Double,
+ blocks: Int,
+ alpha: Double,
+ seed: Long,
+ nonnegative: Boolean
--- End diff --
Ditto.
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