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From Michael McCandless <luc...@mikemccandless.com>
Subject Re: Absolute term position in scoring
Date Mon, 26 Jan 2015 08:57:56 GMT
Well you could have ordinary term queries, and then a SHOULD SpanFirstQuery
clause with a boost, to give higher scores to those docs that also had the
term(s) close to the start of the document.


Mike McCandless

http://blog.mikemccandless.com

On Sun, Jan 25, 2015 at 5:44 PM, Luis A Lastras <lastrasl@us.ibm.com> wrote:

> Thanks I didn't know about SpanFirstQuery. I can likely get something
> going with that. I was still hoping that we could affect the scoring
> formula with the position itself, but maybe this is not feasible.
>
> Luis
>
>
>
>    ------------------------------
>
>
>
> *Luis A Lastras, Ph.D. Research Staff Member & Manager, Concept Analytics,
>    IBM Watson*
>    *Member of the iBM Academy of Technology*
>
> *IBM Master Inventor email: **lastrasl@us.ibm.com* <email@region.ibm.com>
> * | Tel: 914-945-3613 <914-945-3613> | Cell: 914-382-1879 <914-382-1879>
>    address:  1101 Kitchawan Rd, Office 28-132, Yorktown Heights, NY, 10598*
>
>
>
>
>    <http://www.facebook.com/ibmwatson>
>
>
>    ------------------------------
>
>
>
> [image: Inactive hide details for Michael McCandless ---01/25/2015
> 08:12:18 AM---Maybe SpanFirstQuery? Mike McCandless]Michael McCandless
> ---01/25/2015 08:12:18 AM---Maybe SpanFirstQuery? Mike McCandless
>
> From: Michael McCandless <lucene@mikemccandless.com>
> To: Lucene Users <java-user@lucene.apache.org>
> Date: 01/25/2015 08:12 AM
> Subject: Re: Absolute term position in scoring
> ------------------------------
>
>
>
> Maybe SpanFirstQuery?
>
>
> Mike McCandless
>
> http://blog.mikemccandless.com
>
> On Sat, Jan 24, 2015 at 9:34 PM, Luis A Lastras <lastrasl@us.ibm.com>
> wrote:
>
> > Is it possible to incorporate in Lucene's scoring function the position
> of
> > a matching term (say as measured from the top of the document). The
> > scenario is, if the set of documents tend to lk about the most important
> > stuff at the beginning of the document, then we would like to give
> > preference to documents that mention a term close to the top.
> >
> > Thanks,
> >
> > Luis
> >
> >
> >
> >    ------------------------------
> >
> >
> >
> > *Luis A Lastras, Ph.D. Research Staff Member & Manager, Concept
> Analytics,
> >    IBM Watson*
> >    *Member of the iBM Academy of Technology*
> >
> > *IBM Master Inventor email: **lastrasl@us.ibm.com* <email@region.ibm.com
> >
> > * | Tel: 914-945-3613 <914-945-3613> | Cell: 914-382-1879 <914-382-1879>
> >    address:  1101 Kitchawan Rd, Office 28-132, Yorktown Heights, NY,
> 10598*
> >
> >
> >
> >
> >    <http://www.facebook.com/ibmwatson>
> >
> >
> >    ------------------------------
> >
> >
> >
>
>

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