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From Avery Ching <ach...@apache.org>
Subject Re: how to use SimplePageRankVertex
Date Sat, 18 Feb 2012 16:37:06 GMT
IntIntNullIntTextInputFormat in the examples package (extending 
TextVertexInputFormat as David suggests) is very similar to what you 
need I think, although the types might be different for your 
application.  You can start with that perhaps.

Avery

On 2/18/12 7:48 AM, David Garcia wrote:
> The easiest thing to do is to extend text vertex or/and textvertext 
> input format and/or the record reader.  The record reader will give 
> you the vertices you want.  Look at the record reader for 
> textvertexinputformat.  It's an innerclass on this format class.
>
> Sent from my HTC Inspireā„¢ 4G on AT&T
>
> ----- Reply message -----
> From: "yavuz gokirmak" <ygokirmak@gmail.com>
> To: "giraph-user@incubator.apache.org" <giraph-user@incubator.apache.org>
> Subject: how to use SimplePageRankVertex
> Date: Sat, Feb 18, 2012 9:08 am
>
>
>
> Hi,
>
> I am planning to use giraph for network analysis. First I am trying to 
> fully understand SimplePageRankVertex implementation and modify in 
> order to serve my needs.
>
> I have a question about example,
> What is the expected input format for SimplePageRankVertex, I couldn't 
> understand the input format although  SimplePageRankVertexReader class 
> has few lines.
>
>
> My input file is contains of rows such as:
> usera, userb
> usera, userc
> userc, usera
> userb, userc
> userc, userb
> .
> .
> .
> Each row represents a relation between two users,
> *"usera,userb"* means that *"usera is clicked userb's profile" *
>
> Is it possible to make social network analysis over such kind of data 
> using giraph?
> I will be glad if you can give advices..
>
> thanks in advance
> best regards
> ygokirmak


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