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Posted to mapreduce-user@hadoop.apache.org by Rishav <su...@gmail.com> on 2010/06/29 00:17:39 UTC

Using MapReduce to train a CRF model (specifically Stanford Named Entity Recognizer)

Hello everyone

I was wondering if anyone has used Hadoop to train a Conditional Random
Field (CRF) model (specifically Stanford Named Entity Recognizer). I am not
getting the idea of what should be the tasks of the Mapper and the Reducer.
Maybe if someone could point me to someplace.

Regards

Rishav

Re: Developping MapReduce functions

Posted by Wei Xue <si...@gmail.com>.
That's a very good book. :-)

2010/6/29 Mohamed Riadh Trad <Mo...@inria.fr>

> Hi Khaled,
>
> I started with Hadoop The Definitive Guide, in addition of the sample
> programs.
>
> http://oreilly.com/catalog/9780596521981
>
> Regards.
>
> Trad Mohamed Riadh, M.Sc, Ing.
> PhD. student
> INRIA-TELECOM PARISTECH
>
> Office: 11-15
> Phone: (33)-1 39 63 59 33
> Fax: (33)-1 39 63 56 74
> Email: Riadh.Trad(a)inria.fr
> Home page: http://www-rocq.inria.fr/who/Mohamed.Trad/<http://www-rocq.inria.fr/%7Etrad/>
>
>
> Le 29 juin 2010 à 11:44, Khaled BEN BAHRI a écrit :
>
> Hello everyone
>
> I'm a novice one at hadoop and MapReduce framework,
> I have installed and configuring hadoop and hdfs on 4 nodes
> I want to know how to develop MapReduce functions and how to develop
> scripts for using it.
>
> Thanks for any help :)
>
> Best regards.
>
> Khaled
>
>
>

Re: Developping MapReduce functions

Posted by Mohamed Riadh Trad <Mo...@inria.fr>.
Hi Khaled,

I started with Hadoop The Definitive Guide, in addition of the sample programs.

http://oreilly.com/catalog/9780596521981

Regards.

Trad Mohamed Riadh, M.Sc, Ing.
PhD. student
INRIA-TELECOM PARISTECH 

Office: 11-15
Phone: (33)-1 39 63 59 33
Fax: (33)-1 39 63 56 74
Email: Riadh.Trad(a)inria.fr
Home page: http://www-rocq.inria.fr/who/Mohamed.Trad/


Le 29 juin 2010 à 11:44, Khaled BEN BAHRI a écrit :

> Hello everyone
> 
> I'm a novice one at hadoop and MapReduce framework,
> I have installed and configuring hadoop and hdfs on 4 nodes
> I want to know how to develop MapReduce functions and how to develop scripts for using it.
> 
> Thanks for any help :)
> 
> Best regards.
> 
> Khaled
>

Re: Developping MapReduce functions

Posted by Sonal Goyal <so...@gmail.com>.
Hi Khaled,

Please check:

http://hadoop.apache.org/common/docs/r0.20.1/mapred_tutorial.html

<http://hadoop.apache.org/common/docs/r0.20.1/mapred_tutorial.html>
http://hadoop.apache.org/common/docs/r0.20.1/streaming.html
<http://hadoop.apache.org/common/docs/r0.20.1/streaming.html>
Thanks and Regards,
Sonal
www.meghsoft.com
http://in.linkedin.com/in/sonalgoyal


On Tue, Jun 29, 2010 at 3:14 PM, Khaled BEN BAHRI <
Khaled.Ben_bahri@it-sudparis.eu> wrote:

> Hello everyone
>
> I'm a novice one at hadoop and MapReduce framework,
> I have installed and configuring hadoop and hdfs on 4 nodes
> I want to know how to develop MapReduce functions and how to develop
> scripts for using it.
>
> Thanks for any help :)
>
> Best regards.
>
> Khaled
>
>

Developping MapReduce functions

Posted by Khaled BEN BAHRI <Kh...@it-sudparis.eu>.
Hello everyone

I'm a novice one at hadoop and MapReduce framework,
I have installed and configuring hadoop and hdfs on 4 nodes
I want to know how to develop MapReduce functions and how to develop  
scripts for using it.

Thanks for any help :)

Best regards.

Khaled