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From abhay kumar <abhay...@gmail.com>
Subject Re: how to down-weight synonyms
Date Wed, 26 Aug 2009 10:54:50 GMT
Hi,
 The first answer by Sven is more efficient and generaly used.

Abhay
@Sven
f you add the synonyms at query time you can assign a boost factor to
the added synonyms that would boost the matches to a particular term
down. -> something in the interval [0,1]

On Wed, Aug 26, 2009 at 3:40 PM, Simon Willnauer <
simon.willnauer@googlemail.com> wrote:

> Hi Sven,
> While I have no idea bout the example in LiA  I can give you some
> quick pointers.
> if you add the synonyms at query time you can assign a boost factor to
> the added synonyms that would boost the matches to a particular term
> down. -> something in the interval [0,1]
> if you add the synonyms at index time you could add a payload to the
> added synonyms and use some payload aware query for searches. See
>
> http://lucene.apache.org/java/2_4_0/api/core/org/apache/lucene/search/payloads/package-summary.html
>
> You could also index the content into two different fields on with and
> one without synonyms and set boost factors on the field. This case
> would be a little more complex and rather "dirty" but maybe its an
> option for you.
>
> simon
>
>
> On Wed, Aug 26, 2009 at 11:57 AM, Sven Fischer<info@linux4tw.de> wrote:
> > Hi,
> > I implemented a synonym search by using the chapter 4.6's example from
> the
> > Lucene in Action book.
> > Now I want to extend the example in that way, that synonyms are boosted
> less
> > that the original word the user searched for. Is there a way to do it? If
> it
> > is, I would like to get any help on how to implement that feature.
> >
> > can anyone help please?
> >
> >
> > Thanks
> > Sven
> >
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