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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-3898) Adamic-Adar Similarity
Date Fri, 24 Jun 2016 21:39:16 GMT

    [ https://issues.apache.org/jira/browse/FLINK-3898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15348711#comment-15348711

ASF GitHub Bot commented on FLINK-3898:

GitHub user greghogan opened a pull request:


    [FLINK-3898] [gelly] Adamic-Adar Similarity


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/greghogan/flink 3898_adamic_adar_similarity

Alternatively you can review and apply these changes as the patch at:


To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #2160


> Adamic-Adar Similarity
> ----------------------
>                 Key: FLINK-3898
>                 URL: https://issues.apache.org/jira/browse/FLINK-3898
>             Project: Flink
>          Issue Type: New Feature
>          Components: Gelly
>    Affects Versions: 1.1.0
>            Reporter: Greg Hogan
>            Assignee: Greg Hogan
>             Fix For: 1.1.0
> The implementation of Adamic-Adar Similarity [0] is very close to Jaccard Similarity.
Whereas Jaccard Similarity counts common neighbors, Adamic-Adar Similarity sums the inverse
logarithm of the degree of common neighbors.
> Consideration will be given to the computation of the inverse logarithm, in particular
whether to pre-compute a small array of values.
> [0] http://social.cs.uiuc.edu/class/cs591kgk/friendsadamic.pdf

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