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Posted to issues@flink.apache.org by "Greg Hogan (JIRA)" <ji...@apache.org> on 2016/05/11 14:03:12 UTC
[jira] [Created] (FLINK-3898) Adamic-Adar Similarity
Greg Hogan created FLINK-3898:
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Summary: 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
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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