Re: Surprising score?
Not a problem. index time boosts are boosts made
_when you're indexing_, not when you're querying
so omitting norms should stil have your query boosting
work.
Also, try adding debug=all and examining the results,
it'll show you exactly how scores were calculated. It does
take a bit to work though I'll admit...
Best
Erick
On Fri, Jul 5, 2013 at 8:47 AM, Lochschmied, Alexander
alexander.lochschm...@vishay.com wrote:
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: Surprising score?
Also considering using the SweetSpotSimilarityFactory class which allows to to
still engage normalization but control how intrusive it is. This, combined
with the ability to set a custom Similarity class on a per-fieldType basis may
be extremely useful.
More info:
http://lucene.apache.org/solr/4_3_1/solr-core/org/apache/solr/search/similarities/SweetSpotSimilarityFactory.html
Jason
On Jul 5, 2013, at 5:59 AM, pravesh suyalprav...@yahoo.com wrote:
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
--
View this message in context:
http://lucene.472066.n3.nabble.com/Surprising-score-tp4075436p4075722.html
Sent from the Solr - User mailing list archive at Nabble.com.
Re: Surprising score?
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: 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
