[jira] [Closed] (FLINK-3780) Jaccard Similarity

["Greg Hogan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-3780?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Greg Hogan closed FLINK-3780.
-----------------------------
    Resolution: Fixed

Implemented in 8ed368582a8550ccb5941dfd4e8412dad8ca34c0

> 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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