AW: Surprising score?

2013-07-05 Thread Lochschmied, Alexander 
Thanks Jeroen and Upayavira!

I read the warning about losing the ability to use index time boosts when I 
disable length normalization. And we actually use it; at least if it means 
having a boost field in the index and doing queries like this:

{!boost b=boost}( series:RCWP^10 OR otherFileds:queries^2)

Is there a way to omitNorms and still be able to use {!boost b=boost} ?

Thanks,
Alexander


-Ursprüngliche Nachricht-
Von: Upayavira [mailto:u...@odoko.co.uk] 
Gesendet: Donnerstag, 4. Juli 2013 13:07
An: solr-user@lucene.apache.org
Betreff: Re: Surprising score?

And be sure to re-index your content.

Upayavira

On Thu, Jul 4, 2013, at 11:28 AM, Jeroen Steggink wrote:
 Hi Alexander,
 
 This is because you have length normalization enabled for that field.
 http://ir.dcs.gla.ac.uk/wiki/Length_Normalisation
 
 If you want it disabled set the following:
 
 fieldType name=series class=solr.TextField
 positionIncrementGap=100 omitNorms=true
 
 
   Jeroen
 
 On 4-7-2013 11:10, Lochschmied, Alexander wrote:
  Hi Solr people!
 
  querying for series:RCWP returns me the response below. Why does RCWP 
  Moisture Resistant score worse than D/CRCW-P e3 with the field 
  definition below? OK, we are ignoring dashes and spaces, but I would have 
  expected that matches towards the beginning score better. Can I change this 
  behavior (in Solr 4)?
 
  --
  result
  doc
  str name=seriesRCWP/str
  float name=score3.2698402/float
  /doc
  doc
  str name=seriesD/CRCW-P e3/str
  float name=score1.3624334/float
  /doc
  doc
  str name=seriesRCWP Moisture Resistant/str
  float name=score0.5449734/float
  /doc
  /result
  --
 
  fieldType name=series class=solr.TextField positionIncrementGap=100
  analyzer type=index
  charFilter class=solr.PatternReplaceCharFilterFactory 
  pattern=[\-\s]+ replacement=/
  tokenizer class=solr.KeywordTokenizerFactory/
  filter class=solr.StopFilterFactory ignoreCase=true 
  words=stopwords.txt enablePositionIncrements=true/
  filter class=solr.LowerCaseFilterFactory/
  filter class=solr.NGramFilterFactory minGramSize=2 
  maxGramSize=50/
  /analyzer
  analyzer type=query
  charFilter class=solr.PatternReplaceCharFilterFactory 
  pattern=[\-\s]+ replacement=/
  tokenizer class=solr.KeywordTokenizerFactory/
  filter class=solr.LowerCaseFilterFactory/
  /analyzer
  /fieldType
 
  Thanks,
  Alexander

Re: AW: Surprising score?

2013-07-05 Thread pravesh 
Is there a way to omitNorms and still be able to use {!boost b=boost} ? 

OR you could let /omitNorms=false/  as usual and have your custom
Similarity implementation with the length normalization method overridden
for using a constant value of 1.


Regards
Pravesh



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