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From "wouter ligtenberg (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-5161) accepting NullValue for VV in Gelly examples and GSA
Date Fri, 25 Nov 2016 11:56:58 GMT
wouter ligtenberg created FLINK-5161:
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             Summary: accepting NullValue for VV in Gelly examples and GSA
                 Key: FLINK-5161
                 URL: https://issues.apache.org/jira/browse/FLINK-5161
             Project: Flink
          Issue Type: Improvement
          Components: Gelly
    Affects Versions: 1.1.3
            Reporter: wouter ligtenberg


I made this topic a few days ago about EV, i meant VV back then, i don't know why i suddenly
thought about EV and it confused myself. 

In this gelly example [1] and this GSA algorithm [2] a Vertex Value of Double is required
but never used, wouldn't it be better to change this into a NullValue? I create a lot of data
without Vertex Values and it seems to me that it's more efficient

I'd like to hear your thoughts on this
[1] https://github.com/apache/flink/blob/master/flink-libraries/flink-gelly-examples/src/main/java/org/apache/flink/graph/examples/SingleSourceShortestPaths.java
[2] https://github.com/apache/flink/blob/master/flink-libraries/flink-gelly/src/main/java/org/apache/flink/graph/library/GSASingleSourceShortestPaths.java



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