Github user MLnick commented on a diff in the pull request:
https://github.com/apache/spark/pull/11844#discussion_r62490261
--- Diff: docs/ml-clustering.md ---
@@ -104,4 +104,38 @@ Refer to the [Java API
docs](api/java/org/apache/spark/ml/clustering/LDA.html) f
{% include_example java/org/apache/spark/examples/ml/JavaLDAExample.java %}
</div>
-</div>
\ No newline at end of file
+</div>
+
+## Bisecting k-means
+
+
+Bisecting k-means is a kind of [hierarchical
clustering](https://en.wikipedia.org/wiki/Hierarchical_clustering) in the
fashion of
+division: all observations start in one cluster, and splits are performed
recursively as one moves down the hierarchy.
--- End diff --
I prefer `... is a kind [hierarchical clustering](...) using a divisive (or
"top-down") approach: all observations ...`
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