Mailing-List: contact java-user-help@lucene.apache.org; run by ezmlm
Precedence: bulk
Reply-To: java-user@lucene.apache.org
Received-SPF: pass (athena.apache.org: domain of erickerickson@gmail.com
 designates 209.85.221.107 as permitted sender)
DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=gmail.com; s=gamma;
        h=mime-version:in-reply-to:references:date:message-id:subject:from:to
         :content-type;
        b=V8KMXa1ddTDj96hVqXn2KYXrMLzqKOnI4qr7G4UxlCypQhFvrH1M7GndfwZQU/zcnQ
         OgRKbBpCup/q8J5VXYZTyAMXV/A8FQp8/d9C+naAtLrVvdasDQLQDb9E2i67t3ySfsMt
         W0J2SQKIP1vUfNvXAhUN7y0gfAFK6XMna5+1k=
MIME-Version: 1.0
In-Reply-To: <23648418.post@talk.nabble.com>
References: <23647738.post@talk.nabble.com>
	 <401658.50329.qm@web38805.mail.mud.yahoo.com>
	 <23648418.post@talk.nabble.com>
Date: Thu, 21 May 2009 10:17:19 -0400
Message-ID: <359a92830905210717x61b13f11nabef7647d81cd63a@mail.gmail.com>
Subject: Re: About sort questions
From: Erick Erickson <erickerickson@gmail.com>
To: java-user@lucene.apache.org
Content-Type: multipart/alternative; boundary=0016364edd44424267046a6ccda6

--0016364edd44424267046a6ccda6
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit

I suspect that your boost values are too small to really influencethe scores
very much. Have you tried using boost values of, say,
d:5^100 OR uid:10^10 OR lang:lisp ?

But if you have specific documents that you *know* you want in
specific places, why play around with boosting at all? You can use
something like (untested pseudo code)

TermDocs td = blah blah blah
td.seek(new Term("uid", "5"));
if (td.next()) {
   Document doc = IndexReader.document(td.doc());
   ...now do whatever you want with the document
}

Note that this just gets the first doc with matching terms, but from
your mail I'm assuming you're working with unique IDs....

Best
Erick

On Thu, May 21, 2009 at 2:15 AM, hacklisp <qingwuking@gmail.com> wrote:

>
> Hi,balasubramanian  Thanks for your reply.
>
> Both first:25 and second:90  perhaps include 'java' or not.
>
> I have set doc#90's boost is 3.15 and doc#25's boost is 1.0. I think that
> is
> key. I try to set query term boost to proper value, but it is not fix. to
> one is okay, but another not.
>
>
> balasubramanian sudaakeran wrote:
> >
> >
> > My guess that this can happen when your document matches more than one
> > condition. For example first:25 could match lang:java as well??
> >
> >
> >
> >
> > ----- Original Message ----
> > From: hacklisp <qingwuking@gmail.com>
> > To: java-user@lucene.apache.org
> > Sent: Thursday, May 21, 2009 10:03:52 AM
> > Subject: About sort questions
> >
> >
> > I search 'lisp' with lucene application  using the  following query
> > string:
> > uid:5^3 OR uid:10^2 OR lang:lisp
> > I hope  result as following:
> >
> > first:5               (which id is 5)
> > second:10          (which id is 10)
> > others:other results sort according to relevance.
> >
> > it is always ok, but sometimes not, the second will display before the
> > first.
> > for example:
> > uid:90^3 OR uid:25^2 OR lang:java
> > first:25               (which id is 5)
> > second:90          (which id is 10)
> > others:other results sort according to relevance.
> >
> > I hope search to  return results strictly according to my input order.
> > Anyone can understand me? thanks in advance.
> > Any point will be appreciate.
> > --
> > View this message in context:
> > http://www.nabble.com/About-sort-questions-tp23647738p23647738.html
> > Sent from the Lucene - Java Users mailing list archive at Nabble.com.
> >
> >
> > ---------------------------------------------------------------------
> > 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
> >
> >
> >
>
> --
> View this message in context:
> http://www.nabble.com/About-sort-questions-tp23647738p23648418.html
> Sent from the Lucene - Java Users mailing list archive at Nabble.com.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
>

--0016364edd44424267046a6ccda6--