Re: DisMax and pf

Sat, 26 Apr 2008 18:54:34 -0700 

Otis,
Can you duplicate this issue with Solr's example app and example documents? Using that setup I made this query: 


<http://localhost:8983/solr/select?qt=dismax&q=ipod 
+mini&debugQuery=true&echoParams=all>


And got this in the results:

<str name="parsedquery">

+((DisjunctionMaxQuery((text:ipod^0.5 | cat:ipod^1.4 | features:ipod  
| name:ipod^1.2 | sku:ipod^1.5 | manu:ipod^1.1 | id:ipod^10.0)~0.01)  
DisjunctionMaxQuery((text:mini^0.5 | cat:mini^1.4 | features:mini |  
name:mini^1.2 | sku:mini^1.5 | manu:mini^1.1 | id:mini^10.0)~0.01)) 
~2) DisjunctionMaxQuery((text:"ipod mini"~100^0.2 | manu:"ipod  
mini"~100^1.4 | name:"ipod mini"~100^1.5 | manu_exact:ipod mini^1.9 |  
features:"ipod mini"~100^1.1)~0.01) FunctionQuery((1000.0/(1.0*float 
(rord(price))+1000.0))^0.3) FunctionQuery((ord(popularity))^0.5)

</str>
        <str name="parsedquery_toString">

+(((text:ipod^0.5 | cat:ipod^1.4 | features:ipod | name:ipod^1.2 |  
sku:ipod^1.5 | manu:ipod^1.1 | id:ipod^10.0)~0.01 (text:mini^0.5 |  
cat:mini^1.4 | features:mini | name:mini^1.2 | sku:mini^1.5 |  
manu:mini^1.1 | id:mini^10.0)~0.01)~2) (text:"ipod mini"~100^0.2 |  
manu:"ipod mini"~100^1.4 | name:"ipod mini"~100^1.5 | manu_exact:ipod  
mini^1.9 | features:"ipod mini"~100^1.1)~0.01 (1000.0/(1.0*float(rord 
(price))+1000.0))^0.3 (ord(popularity))^0.5

</str>

        Erik




On Apr 26, 2008, at 4:12 PM, Otis Gospodnetic wrote:

Hi Erik,


No, nothing fancy in there at all.  I used example/solr/conf/ 
solrconfig.xml and I really only touched qf, pf, bf, and fl:


  <requestHandler name="dismax" class="solr.DisMaxRequestHandler" >
    <lst name="defaults">
     <str name="echoParams">explicit</str>
     <float name="tie">0.01</float>
     <str name="qf">
        content^1.0
     </str>
     <str name="pf">
        content^2.0
     </str>
     <str name="bf">
        recip(rord(addDate),1,1000,1000)^2.5
     </str>
     <str name="fl">
        id,content,addDate,timestamp
     </str>
     <str name="mm">
        2&lt;-1 5&lt;-2 6&lt;90%
     </str>
     <int name="ps">100</int>
     <str name="q.alt">*:*</str>

     <!-- example highlighter config, enable per-query with hl=true  
-->

     <str name="hl.fl">text features name</str>

     <!-- for this field, we want no fragmenting, just highlighting  
-->

     <str name="f.name.hl.fragsize">0</str>

     <!-- instructs Solr to return the field itself if no query  
terms are

          found -->
     <str name="f.name.hl.alternateField">name</str>

     <str name="f.text.hl.fragmenter">regex</str> <!-- defined  
below -->

    </lst>
  </requestHandler>


Solr bug or my mistake somewhere?

Otis
--
Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch

----- Original Message ----

From: Erik Hatcher <[EMAIL PROTECTED]>
To: solr-user@lucene.apache.org
Sent: Saturday, April 26, 2008 2:37:04 PM
Subject: Re: DisMax and pf


On Apr 25, 2008, at 5:04 PM, Otis Gospodnetic wrote:

I was looking at DisMax and playing with its "pf" parameter.  I
created a sample index with field "content".  I set "pf" to:
content^2.0 and expected to see (content:"my query here")^2.0 in
the query (debugQuery=true).  However, I only got (content:"my
query here") -- no boost.
Is this a bug or am I forgetting something?


How did you configure your request handler exactly?   Were you using
any fancy  type of query in there?

    Erik



I did add "&pf=content^2.0" to the request URL and then I did see
(content:"my query here")^2.0
Thanks,
Otis

--
Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch






























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