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From: Tommaso Teofili <tommaso.teofili@gmail.com>
Date: Tue, 7 Feb 2012 10:11:26 +0100
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Subject: Re: Custom Payload Analyzer and Query
To: java-user@lucene.apache.org
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2012/2/6 Ian Lea <ian.lea@gmail.com>

> Not sure if you got an answer to this or not.  Don't recall seeing one
> and gmail threading says not.
>
> > Is the use of payloads I've described appropriate?
>
> Sounds OK to me, although I'm not sure why you can't store the
> metadata as a Document Field.
>
> > Can I exclude/filter the matching terms based on the payload within a
> query itself ?
>
> I think not.  Could if the metadata was an indexed Field.
>

What you may do is initially put your metadata inside the token type, then
use the TypeTokenFilter to filter out some of them then "copy=93 them insid=
e
the payloads using TypeAsPayloadTokenFilter and search with
PayloadSpanUtil/PayloadTermQuery/etc.

HTH,
Tommaso


>
>
>
> --
> Ian.
>
>
> On Mon, Jan 30, 2012 at 10:24 PM,  <ktjex@mmm.com> wrote:
> > I'm working on providing advanced searching for annotated Medical
> > Documents (using UIMA).  In the context of an annotated document, I
> > identify relevant medical terms, as well as the negation of certain
> terms.
> >  Following what I've read and seen in Lucene examples, I've been able t=
o
> > provide a search that takes into account the metadata contained in the
> > payload.  Although very primitive, I've implemented a search which
> returns
> > the payloads (using PayloadSpanUtil), and then excludes those terms whe=
re
> > the payload doesn't meet the criteria.
> >
> > Is the use of payloads I've described appropriate?  Can I exclude/filte=
r
> > the matching terms based on the payload within a query itself ?   Are
> > there any examples that do this?
> >
> > Cheers,
> > Kyley
>
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