Github user MLnick commented on a diff in the pull request:
https://github.com/apache/spark/pull/15795#discussion_r87164985
--- Diff: docs/ml-features.md ---
@@ -1396,3 +1396,149 @@ for more details on the API.
{% include_example python/ml/chisq_selector_example.py %}
</div>
</div>
+
+# Locality Sensitive Hashing
+[Locality Sensitive
Hashing(LSH)](https://en.wikipedia.org/wiki/Locality-sensitive_hashing)
Locality Sensitive Hashing(LSH) is an important class of hashing techniques,
which is commonly used in clustering and outlier detection with large datasets.
--- End diff --
You could mention approximate nearest neighbour search as a common use case
too?
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