Hi guys,
I am getting some doubts about how to correctly understand the debugQuery
output. I have a field named itemName in my index. This is a text field,
just that. When I quqery a simple ?q=itemName:iPad , I end up with the
following query result.
Simply trying to understand why these strings generated such scores, and as
far as I can understand, the only difference between them is the field
norms, as all the other results maintain themselves.
Now, how do I get these field norm values? Field Norm is the result of this
formula right?
*1/square root of (terms)*,* where terms is the number of terms in my field
> after it is indexed*
>
Well, if this is true, the field norm for my first document should be 0.5
(1/sqrt(4)) as "Livro - IPAD - O Guia do Profissional" ends up with the
terms "livro|ipad|guia|profissional" as tokens.
What I am forgetting to take into account?
<?xml version="1.0" encoding="UTF-8"?>
<response>
<lst name="responseHeader">
<int name="status">0</int>
<int name="QTime">3</int>
<lst name="params">
<str name="debugQuery">on</str>
<str name="start">0</str>
<str name="rows">10</str>
<arr name="indent">
<str>on</str>
<str>on</str>
</arr>
<str name="fl">itemName,score</str>
<str name="version">2.2</str>
<str name="q">itemName:ipad</str>
</lst>
</lst>
<result name="response" numFound="161" start="0" maxScore="3.6808658">
<doc>
<float name="score">3.6808658</float>
<str name="itemName">Livro - IPAD - O Guia do Profissional</str>
</doc>
<doc>
<float name="score">3.1550279</float>
<str name="itemName">Leitor de Cartão para Ipad - Mobimax</str>
</doc>
<doc>
<float name="score">3.1550279</float>
<str name="itemName">Sleeve para iPad</str>
</doc>
<doc>
<float name="score">3.1550279</float>
<str name="itemName">Sleeve de Neoprene para iPad</str>
</doc>
<doc>
<float name="score">3.1550279</float>
<str name="itemName">Carregador de parede para iPad</str>
</doc>
<doc>
<float name="score">2.6291897</float>
<str name="itemName">Case Envelope para iPad - Black - Built NY</str>
</doc>
<doc>
<float name="score">2.6291897</float>
<str name="itemName">Case Protetora p/ IPad de Silicone Duo - Browm
- Iskin</str>
</doc>
<doc>
<float name="score">2.6291897</float>
<str name="itemName">Case Protetora p/ IPad de Silicone Duo - Clear
- Iskin</str>
</doc>
<doc>
<float name="score">2.6291897</float>
<str name="itemName">Case p/ iPad Sleeve - Black - Built NY</str>
</doc>
<doc>
<float name="score">2.6291897</float>
<str name="itemName">Bolsa de Proteção p/ iPad Preta - Geonav</str>
</doc>
</result>
<lst name="debug">
<str name="rawquerystring">itemName:ipad</str>
<str name="querystring">itemName:ipad</str>
<str name="parsedquery">itemName:ipad</str>
<str name="parsedquery_toString">itemName:ipad</str>
<lst name="explain">
<str name="7369507">
3.6808658 = (MATCH) fieldWeight(itemName:ipad in 102507), product of:
1.0 = tf(termFreq(itemName:ipad)=1)
8.413407 = idf(docFreq=165, maxDocs=275239)
0.4375 = fieldNorm(field=itemName, doc=102507)
</str>
<str name="7391111">
3.1550279 = (MATCH) fieldWeight(itemName:ipad in 226401), product of:
1.0 = tf(termFreq(itemName:ipad)=1)
8.413407 = idf(docFreq=165, maxDocs=275239)
0.375 = fieldNorm(field=itemName, doc=226401)
</str>
<str name="7356941">
3.1550279 = (MATCH) fieldWeight(itemName:ipad in 226409), product of:
1.0 = tf(termFreq(itemName:ipad)=1)
8.413407 = idf(docFreq=165, maxDocs=275239)
0.375 = fieldNorm(field=itemName, doc=226409)
</str>
<str name="7356931">
3.1550279 = (MATCH) fieldWeight(itemName:ipad in 226447), product of:
1.0 = tf(termFreq(itemName:ipad)=1)
8.413407 = idf(docFreq=165, maxDocs=275239)
0.375 = fieldNorm(field=itemName, doc=226447)
</str>
<str name="7360321">
3.1550279 = (MATCH) fieldWeight(itemName:ipad in 226583), product of:
1.0 = tf(termFreq(itemName:ipad)=1)
8.413407 = idf(docFreq=165, maxDocs=275239)
0.375 = fieldNorm(field=itemName, doc=226583)
</str>
<str name="7428354">
2.6291897 = (MATCH) fieldWeight(itemName:ipad in 223178), product of:
1.0 = tf(termFreq(itemName:ipad)=1)
8.413407 = idf(docFreq=165, maxDocs=275239)
0.3125 = fieldNorm(field=itemName, doc=223178)
</str>
<str name="7366074">
2.6291897 = (MATCH) fieldWeight(itemName:ipad in 223196), product of:
1.0 = tf(termFreq(itemName:ipad)=1)
8.413407 = idf(docFreq=165, maxDocs=275239)
0.3125 = fieldNorm(field=itemName, doc=223196)
</str>
<str name="7366068">
2.6291897 = (MATCH) fieldWeight(itemName:ipad in 223831), product of:
1.0 = tf(termFreq(itemName:ipad)=1)
8.413407 = idf(docFreq=165, maxDocs=275239)
0.3125 = fieldNorm(field=itemName, doc=223831)
</str>
<str name="7428358">
2.6291897 = (MATCH) fieldWeight(itemName:ipad in 223856), product of:
1.0 = tf(termFreq(itemName:ipad)=1)
8.413407 = idf(docFreq=165, maxDocs=275239)
0.3125 = fieldNorm(field=itemName, doc=223856)
</str>
<str name="7422680">
2.6291897 = (MATCH) fieldWeight(itemName:ipad in 223908), product of:
1.0 = tf(termFreq(itemName:ipad)=1)
8.413407 = idf(docFreq=165, maxDocs=275239)
0.3125 = fieldNorm(field=itemName, doc=223908)
</str>
</lst>
<str name="QParser">LuceneQParser</str>
<lst name="timing">
<double name="time">3.0</double>
<lst name="prepare">
<double name="time">1.0</double>
<lst name="org.apache.solr.handler.component.QueryComponent">
<double name="time">1.0</double>
</lst>
<lst name="org.apache.solr.handler.component.FacetComponent">
<double name="time">0.0</double>
</lst>
<lst name="org.apache.solr.handler.component.MoreLikeThisComponent">
<double name="time">0.0</double>
</lst>
<lst name="org.apache.solr.handler.component.HighlightComponent">
<double name="time">0.0</double>
</lst>
<lst name="org.apache.solr.handler.component.StatsComponent">
<double name="time">0.0</double>
</lst>
<lst name="org.apache.solr.handler.component.SpellCheckComponent">
<double name="time">0.0</double>
</lst>
<lst name="org.apache.solr.handler.component.DebugComponent">
<double name="time">0.0</double>
</lst>
</lst>
<lst name="process">
<double name="time">2.0</double>
<lst name="org.apache.solr.handler.component.QueryComponent">
<double name="time">1.0</double>
</lst>
<lst name="org.apache.solr.handler.component.FacetComponent">
<double name="time">0.0</double>
</lst>
<lst name="org.apache.solr.handler.component.MoreLikeThisComponent">
<double name="time">0.0</double>
</lst>
<lst name="org.apache.solr.handler.component.HighlightComponent">
<double name="time">0.0</double>
</lst>
<lst name="org.apache.solr.handler.component.StatsComponent">
<double name="time">0.0</double>
</lst>
<lst name="org.apache.solr.handler.component.SpellCheckComponent">
<double name="time">0.0</double>
</lst>
<lst name="org.apache.solr.handler.component.DebugComponent">
<double name="time">1.0</double>
</lst>
</lst>
</lst>
</lst>
</response>
--
Alexander Ramos Jardim
