Github user jkbradley commented on a diff in the pull request:
https://github.com/apache/spark/pull/9854#discussion_r55607549
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/classification/MultilayerPerceptronClassifier.scala
---
@@ -214,4 +224,56 @@ class MultilayerPerceptronClassificationModel
private[ml] (
override def copy(extra: ParamMap):
MultilayerPerceptronClassificationModel = {
copyValues(new MultilayerPerceptronClassificationModel(uid, layers,
weights), extra)
}
+
+ @Since("2.0.0")
+ override def write: MLWriter =
+ new
MultilayerPerceptronClassificationModel.MultilayerPerceptronClassificationModelWriter(this)
+}
+
+@Since("2.0.0")
+object MultilayerPerceptronClassificationModel
+ extends MLReadable[MultilayerPerceptronClassificationModel] {
+
+ @Since("2.0.0")
+ override def read: MLReader[MultilayerPerceptronClassificationModel] =
+ new MultilayerPerceptronClassificationModelReader
+
+ @Since("2.0.0")
+ override def load(path: String): MultilayerPerceptronClassificationModel
= super.load(path)
+
+ /** [[MLWriter]] instance for
[[MultilayerPerceptronClassificationModel]] */
+ private[MultilayerPerceptronClassificationModel]
+ class MultilayerPerceptronClassificationModelWriter(
+ instance: MultilayerPerceptronClassificationModel) extends MLWriter {
+
+ private case class Data(layers: Array[Int], weights: Vector)
+
+ override protected def saveImpl(path: String): Unit = {
+ // Save metadata and Params
+ DefaultParamsWriter.saveMetadata(instance, path, sc)
+ // Save model data: layers, weights
+ val data = Data(instance.layers, instance.weights)
+ val dataPath = new Path(path, "data").toString
+
sqlContext.createDataFrame(Seq(data)).repartition(1).write.parquet(dataPath)
+ }
+ }
+ private class MultilayerPerceptronClassificationModelReader
--- End diff --
newline
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
