Github user vasia commented on a diff in the pull request:
https://github.com/apache/flink/pull/1980#discussion_r64048955
--- Diff:
flink-libraries/flink-gelly/src/main/java/org/apache/flink/graph/library/similarity/JaccardIndex.java
---
@@ -43,11 +43,13 @@
import java.util.List;
/**
- * 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 divided by the number of
--- End diff --
numbers -> neighbors
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