You are viewing a plain text version of this content. The canonical link for it is here.
Posted to user@lucenenet.apache.org by Omri Suissa <om...@diffdoof.com> on 2012/08/07 13:34:28 UTC
Is lucene score is relative?
Hi all,
We want to implement lucene.net in our product and I was wondering about
the scoring. Is it relative to the content in the index or is it "absolute"?
This is important to us because we are considering creating several indexes
when crawl and index and search all of them (or some) and combine the
results. If the score is absolute we can do it this way.
Thanks,
Omri
* Omri Suissa *
* **VP R&D*
* *
* Tel: +972 9 7724228 **DiffDoof .ltd**
*
* Cell: +972 54 5395206 **11, Galgaley Haplada
Street, *
* **Fax: +972 9 9512577** P.O.Box 2150***
* **www.DiffDoof.com* <http://www.DiffDoof.com>*
**Herzlia Pituach 46120, Israel***
Re: Is lucene score is relative?
Posted by Omri Suissa <om...@diffdoof.com>.
Thanks :)
On Tue, Aug 7, 2012 at 2:58 PM, Itamar Syn-Hershko <it...@code972.com>wrote:
> No real way of doing that, if you want scoring to be reliable use one index
>
> On Tue, Aug 7, 2012 at 2:53 PM, Omri Suissa <omri.suissa@diffdoof.com
> >wrote:
>
> > Thanks, Itamar.
> > So there is a way to combine results from 2 indexes or we have to index
> > everything one the same index?
> >
> > Omri
> > On Tue, Aug 7, 2012 at 2:42 PM, Itamar Syn-Hershko <itamar@code972.com
> > >wrote:
> >
> > > The score has only meaning within the same query on one index. You
> cannot
> > > rely on it for sorting between queries or indexes
> > >
> > > On Tue, Aug 7, 2012 at 2:34 PM, Omri Suissa <omri.suissa@diffdoof.com
> > > >wrote:
> > >
> > > > Hi all,
> > > > We want to implement lucene.net in our product and I was wondering
> > about
> > > > the scoring. Is it relative to the content in the index or is it
> > > > "absolute"?
> > > > This is important to us because we are considering creating several
> > > indexes
> > > > when crawl and index and search all of them (or some) and combine the
> > > > results. If the score is absolute we can do it this way.
> > > >
> > > > Thanks,
> > > > Omri
> > > >
> > > > * Omri Suissa *
> > > >
> > > > * **VP R&D*
> > > >
> > > > * *
> > > >
> > > > * Tel: +972 9 7724228 **DiffDoof .ltd**
> > > > *
> > > >
> > > > * Cell: +972 54 5395206 **11, Galgaley
> > Haplada
> > > > Street, *
> > > >
> > > > * **Fax: +972 9 9512577** P.O.Box 2150***
> > > >
> > > > * **www.DiffDoof.com* <http://www.DiffDoof.com>*
> > > > **Herzlia Pituach 46120, Israel***
> > > >
> > >
> >
>
Re: Is lucene score is relative?
Posted by Itamar Syn-Hershko <it...@code972.com>.
No real way of doing that, if you want scoring to be reliable use one index
On Tue, Aug 7, 2012 at 2:53 PM, Omri Suissa <om...@diffdoof.com>wrote:
> Thanks, Itamar.
> So there is a way to combine results from 2 indexes or we have to index
> everything one the same index?
>
> Omri
> On Tue, Aug 7, 2012 at 2:42 PM, Itamar Syn-Hershko <itamar@code972.com
> >wrote:
>
> > The score has only meaning within the same query on one index. You cannot
> > rely on it for sorting between queries or indexes
> >
> > On Tue, Aug 7, 2012 at 2:34 PM, Omri Suissa <omri.suissa@diffdoof.com
> > >wrote:
> >
> > > Hi all,
> > > We want to implement lucene.net in our product and I was wondering
> about
> > > the scoring. Is it relative to the content in the index or is it
> > > "absolute"?
> > > This is important to us because we are considering creating several
> > indexes
> > > when crawl and index and search all of them (or some) and combine the
> > > results. If the score is absolute we can do it this way.
> > >
> > > Thanks,
> > > Omri
> > >
> > > * Omri Suissa *
> > >
> > > * **VP R&D*
> > >
> > > * *
> > >
> > > * Tel: +972 9 7724228 **DiffDoof .ltd**
> > > *
> > >
> > > * Cell: +972 54 5395206 **11, Galgaley
> Haplada
> > > Street, *
> > >
> > > * **Fax: +972 9 9512577** P.O.Box 2150***
> > >
> > > * **www.DiffDoof.com* <http://www.DiffDoof.com>*
> > > **Herzlia Pituach 46120, Israel***
> > >
> >
>
Re: Is lucene score is relative?
Posted by Omri Suissa <om...@diffdoof.com>.
Thanks, Itamar.
So there is a way to combine results from 2 indexes or we have to index
everything one the same index?
Omri
On Tue, Aug 7, 2012 at 2:42 PM, Itamar Syn-Hershko <it...@code972.com>wrote:
> The score has only meaning within the same query on one index. You cannot
> rely on it for sorting between queries or indexes
>
> On Tue, Aug 7, 2012 at 2:34 PM, Omri Suissa <omri.suissa@diffdoof.com
> >wrote:
>
> > Hi all,
> > We want to implement lucene.net in our product and I was wondering about
> > the scoring. Is it relative to the content in the index or is it
> > "absolute"?
> > This is important to us because we are considering creating several
> indexes
> > when crawl and index and search all of them (or some) and combine the
> > results. If the score is absolute we can do it this way.
> >
> > Thanks,
> > Omri
> >
> > * Omri Suissa *
> >
> > * **VP R&D*
> >
> > * *
> >
> > * Tel: +972 9 7724228 **DiffDoof .ltd**
> > *
> >
> > * Cell: +972 54 5395206 **11, Galgaley Haplada
> > Street, *
> >
> > * **Fax: +972 9 9512577** P.O.Box 2150***
> >
> > * **www.DiffDoof.com* <http://www.DiffDoof.com>*
> > **Herzlia Pituach 46120, Israel***
> >
>
Re: Is lucene score is relative?
Posted by Itamar Syn-Hershko <it...@code972.com>.
The score has only meaning within the same query on one index. You cannot
rely on it for sorting between queries or indexes
On Tue, Aug 7, 2012 at 2:34 PM, Omri Suissa <om...@diffdoof.com>wrote:
> Hi all,
> We want to implement lucene.net in our product and I was wondering about
> the scoring. Is it relative to the content in the index or is it
> "absolute"?
> This is important to us because we are considering creating several indexes
> when crawl and index and search all of them (or some) and combine the
> results. If the score is absolute we can do it this way.
>
> Thanks,
> Omri
>
> * Omri Suissa *
>
> * **VP R&D*
>
> * *
>
> * Tel: +972 9 7724228 **DiffDoof .ltd**
> *
>
> * Cell: +972 54 5395206 **11, Galgaley Haplada
> Street, *
>
> * **Fax: +972 9 9512577** P.O.Box 2150***
>
> * **www.DiffDoof.com* <http://www.DiffDoof.com>*
> **Herzlia Pituach 46120, Israel***
>