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From "Sebastian Schelter (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GIRAPH-584) Giraph implementation of Nutch LinkRank Algorithm
Date Wed, 27 Mar 2013 09:23:15 GMT

    [ https://issues.apache.org/jira/browse/GIRAPH-584?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13615058#comment-13615058
] 

Sebastian Schelter commented on GIRAPH-584:
-------------------------------------------

Looks like a very good idea. I have a few suggestions: AFAIK, LinkRank is a slight modification
of PageRank and also relies on doing a random walk on the link graph. We already have some
tooling for doing this (see GIRAPH-480 for latest developments) that should be leveraged.

Furthermore, it would be great to get some performance numbers on a large graph. E.g. you
could use the Webbase dataset http://law.di.unimi.it/webdata/webbase-2001/ which has more
than a billion links.
                
> Giraph implementation of Nutch LinkRank Algorithm
> -------------------------------------------------
>
>                 Key: GIRAPH-584
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-584
>             Project: Giraph
>          Issue Type: Task
>          Components: graph
>         Environment: Nutch trunk branch
> http://svn.apache.org/repos/asf/nutch/trunk/
>            Reporter: Lewis John McGibbney
>              Labels: gsoc2013
>
> This issue is initially aimed at the delegation of the Nutch page rank mechanism (called
LinkRank) to Apache Giraph.
> Motivation for this is simple, we envisage that this would probably save us quite a bit
of code and be more efficient.
> The idea is to attract and build interest around this issue and propose it for this years
Google Summer of Code.
> We would like to build links between the Giraph and Nutch communities and make both Nutch
and Giraph better in the process.
> INTERESTED MENTORS
> ------------------
> Lewis John McGibbney - lewismc at apache dot org
> INTERESTED STUDENTS
> -------------------
> Student name - Student email
> Ahmet Emre Aladag - emre.aladag at agmlab dot com
> Related threads
> [0] http://s.apache.org/Sz9
> [1] http://s.apache.org/ssa
> [2] http://wiki.apache.org/nutch/CommandLineOptions#Webgraph_classes

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