Github user jkbradley commented on a diff in the pull request:
https://github.com/apache/spark/pull/4677#discussion_r25138908
--- Diff: docs/mllib-ensembles.md ---
@@ -427,6 +427,18 @@ We omit some decision tree parameters since those are
covered in the [decision t
* **`algo`**: The algorithm or task (classification vs. regression) is set
using the tree [Strategy] parameter.
+#### Validation while training
+
+Gradient boosting can overfit when trained with more number of trees. In
order to prevent overfitting, it might
--- End diff --
"with more number of trees" --> "with more trees"
"it might be" --> "it is"
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