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https://issues.apache.org/jira/browse/FLINK-3780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15289527#comment-15289527
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ASF GitHub Bot commented on FLINK-3780:
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Github user greghogan commented on the pull request:
https://github.com/apache/flink/pull/1980#issuecomment-220116075
Hi @vasia that would be great if you have time after 2044.
> Jaccard Similarity
> ------------------
>
> Key: FLINK-3780
> URL: https://issues.apache.org/jira/browse/FLINK-3780
> Project: Flink
> Issue Type: New Feature
> Components: Gelly
> Affects Versions: 1.1.0
> Reporter: Greg Hogan
> Assignee: Greg Hogan
> Fix For: 1.1.0
>
>
> Implement a Jaccard Similarity algorithm computing all non-zero similarity
> scores. This algorithm is similar to {{TriangleListing}} but instead of
> joining two-paths against an edge list we count two-paths.
> {{flink-gelly-examples}} currently has {{JaccardSimilarityMeasure}} which
> relies on {{Graph.getTriplets()}} so only computes similarity scores for
> neighbors but not neighbors-of-neighbors.
> This algorithm is easily modified for other similarity scores such as
> Adamic-Adar similarity where the sum of endpoint degrees is replaced by the
> degree of the middle vertex.
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