Github user vasia commented on a diff in the pull request:
https://github.com/apache/flink/pull/1980#discussion_r64047578
--- Diff: docs/apis/batch/libs/gelly.md ---
@@ -2055,22 +2055,22 @@ vertex and edge in the output graph stores the
common group value and the number
### Jaccard Index
#### Overview
-The Jaccard Index measures the similarity between vertex neighborhoods.
Scores range from 0.0 (no common neighbors) to
-1.0 (all neighbors are common).
+The Jaccard Index measures the similarity between vertex neighborhoods and
is computed as the number of shared numbers
--- End diff --
shared numbers -> shared *neighbors?
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