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From "Eli Reisman (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GIRAPH-26) Improve PseudoRandomVertexInputFormat to create a more realistic synthetic graph (e.g. power-law distributed vertex-cardinality).
Date Wed, 05 Sep 2012 04:28:09 GMT

    [ https://issues.apache.org/jira/browse/GIRAPH-26?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13448455#comment-13448455
] 

Eli Reisman commented on GIRAPH-26:
-----------------------------------

Looking at unit test possibilities now, this updated patch looks great, will try to help get
this committed ASAP
                
> Improve PseudoRandomVertexInputFormat to create a more realistic synthetic graph (e.g.
power-law distributed vertex-cardinality).
> ---------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: GIRAPH-26
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-26
>             Project: Giraph
>          Issue Type: Test
>          Components: benchmark
>    Affects Versions: 0.2.0
>            Reporter: Jake Mannix
>            Assignee: Sean Choi
>            Priority: Minor
>             Fix For: 0.2.0
>
>         Attachments: GIRAPH-26-2.patch, GIRAPH-26-3.patch, GIRAPH-26.patch
>
>
> The PageRankBenchmark class, to be a proper benchmark, should run over graphs which look
more like data seen in the wild, and web link graphs, social network graphs, and text corpora
(represented as a bipartite graph) all have power-law distributions, so benchmarking a synthetic
graph which looks more like this would be a nice test which would stress cases of uneven split-distribution
and bottlenecks of subclusters of the graph of heavily connected vertices.

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