Public access to the stemmer (germanstemmer in my case)

[Markus Fischer <ma...@fischer.name>]

Hi,

I was wondering if there's a reason why the stemmers, e.g. GermanStemmer 
are not accessible from outside the lucene package.

When I want to highlight the search terms, I need to know which terms 
have been found. Example: when searching for "Vitamine" the 
GermanStemmer produces "Vitami". "Vitami" is a word not directly used, 
but often it's "Vitamin", the noun. When I now try to highlight the 
matched words solely based on the user input, I certainly won't be able 
to highlight "Vitamin" or a part of the word, since I'm not aware of the 
stemmed word.

My frontend application is not Java, I'm only accessing Lucene through 
my package with XML-RPC. What I did now is I copied the GermanStemmer 
from lucene into my package and called it from there.

But I'm not sure if that's a clever idea and maybe I just overlooked a 
public interface to the stemmer output? Or I'm approaching the whole 
highlight search term from the wrong direction?

thanks for any pointers,
- Markus

---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-user-help@lucene.apache.org

Re: Public access to the stemmer (germanstemmer in my case)

[Otis Gospodnetic <ot...@yahoo.com>]

You can use Lucene highlighter.  It lives in Lucene's contrib/
directory (not released as a separate Jar, but you can either build it,
or grab it from, for example, Lucene in Action's code download).  It
lets you highlight search terms like this:
  http://www.lucenebook.com/search?query=highlighter

Otis

--- Markus Fischer <ma...@fischer.name> wrote:

> Hi,
> 
> I was wondering if there's a reason why the stemmers, e.g.
> GermanStemmer 
> are not accessible from outside the lucene package.
> 
> When I want to highlight the search terms, I need to know which terms
> 
> have been found. Example: when searching for "Vitamine" the 
> GermanStemmer produces "Vitami". "Vitami" is a word not directly
> used, 
> but often it's "Vitamin", the noun. When I now try to highlight the 
> matched words solely based on the user input, I certainly won't be
> able 
> to highlight "Vitamin" or a part of the word, since I'm not aware of
> the 
> stemmed word.
> 
> My frontend application is not Java, I'm only accessing Lucene
> through 
> my package with XML-RPC. What I did now is I copied the GermanStemmer
> 
> from lucene into my package and called it from there.
> 
> But I'm not sure if that's a clever idea and maybe I just overlooked
> a 
> public interface to the stemmer output? Or I'm approaching the whole 
> highlight search term from the wrong direction?
> 
> thanks for any pointers,
> - Markus
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
> 
> 


---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-user-help@lucene.apache.org