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From "Vasia Kalavri (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-1523) Vertex-centric iteration extensions
Date Wed, 11 Feb 2015 14:46:12 GMT
Vasia Kalavri created FLINK-1523:

             Summary: Vertex-centric iteration extensions
                 Key: FLINK-1523
                 URL: https://issues.apache.org/jira/browse/FLINK-1523
             Project: Flink
          Issue Type: Improvement
          Components: Gelly
            Reporter: Vasia Kalavri

We would like to make the following extensions to the vertex-centric iterations of Gelly:

- allow vertices to access their in/out degrees and the total number of vertices of the graph,
inside the iteration.

- allow choosing the neighborhood type (in/out/all) over which to run the vertex-centric iteration.
Now, the model uses the updates of the in-neighbors to calculate state and send messages to
out-neighbors. We could add a parameter with value "in/out/all" to the {{VertexUpdateFunction}}
and {{MessagingFunction}}, that would indicate the type of neighborhood.

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