Re: How to do faceting on data indexed by Nutch

2010-04-26 Thread Alvaro Cabrerizo
2010/4/25 Andrzej Bialecki 

> On 2010-04-25 15:03, KK wrote:
> > Hi All,
> > I might be repeating this question asked by someone else but googling
> didn't
> > help tracking any such mail responses.
> > I'm pretty much aware of Solr/Lucene and its basic architecture. I've
> done
> > hit highlighting in Lucene, has idea on faceting support by Solr but
> never
> > tried it actually. I wanted to implement faceting on Nutch's indexed
> data. I
> > already have some MBs of data already indexed by Nutch. I just want to
> > implement faceting on those . Can someone give me pointers on how to
> proceed
> > further in this regard. Or is it the case that I've to query using Solr
> > interface and redirect all the queries to the index already created by
> > Nutch. What is the best possible way, simplest way for achieving the
> same.
> > Please help in this regard.
>
> Nutch has two indexing/searching backends - the one that is configured
> by default uses plain Lucene, and it does not support faceting. The
> other backend uses Solr, and then of course it supports faceting and all
> other Solr features.
>
> So in your case you need to switch to use Solr indexing (and searching).
>
> --
> Best regards,
> Andrzej Bialecki <><
>  ___. ___ ___ ___ _ _   __
> [__ || __|__/|__||\/|  Information Retrieval, Semantic Web
> ___|||__||  \|  ||  |  Embedded Unix, System Integration
> http://www.sigram.com  Contact: info at sigram dot com
>
>

Although I haven't tried it, maybe you can build a faceting plugin for nutch
using  http://sna-projects.com/bobo .

Regards


Re: How to do faceting on data indexed by Nutch

2010-04-25 Thread Andrzej Bialecki
On 2010-04-25 15:03, KK wrote:
> Hi All,
> I might be repeating this question asked by someone else but googling didn't
> help tracking any such mail responses.
> I'm pretty much aware of Solr/Lucene and its basic architecture. I've done
> hit highlighting in Lucene, has idea on faceting support by Solr but never
> tried it actually. I wanted to implement faceting on Nutch's indexed data. I
> already have some MBs of data already indexed by Nutch. I just want to
> implement faceting on those . Can someone give me pointers on how to proceed
> further in this regard. Or is it the case that I've to query using Solr
> interface and redirect all the queries to the index already created by
> Nutch. What is the best possible way, simplest way for achieving the same.
> Please help in this regard.

Nutch has two indexing/searching backends - the one that is configured
by default uses plain Lucene, and it does not support faceting. The
other backend uses Solr, and then of course it supports faceting and all
other Solr features.

So in your case you need to switch to use Solr indexing (and searching).

-- 
Best regards,
Andrzej Bialecki <><
 ___. ___ ___ ___ _ _   __
[__ || __|__/|__||\/|  Information Retrieval, Semantic Web
___|||__||  \|  ||  |  Embedded Unix, System Integration
http://www.sigram.com  Contact: info at sigram dot com