Hi Yonik,
Thanks a lot, I think i understand how explanation works better now.
But, there's something weird I noticed. I've a query like:
"problem formulation each possible x probability p x y find x p x y
maximized how compute p x y"
The weird thing is that literals like "problem", "formulation" and other
words don't show up in explanation only "p" "x" and "y" do show up. And
I get returned a hit score of 1.0 when the explanation output is 1.3260187:
Explanation = 1.3260187 = product of:
2.410943 = sum of:
.....
So, basically 2 simple questions:
1) How do I make all the literals in my query show up in explanation?
2) How does Lucene convert an Explanation score of 1.3260187 to 1.0?
Thanks.
--
Eugene
Yonik Seeley wrote:
On 3/2/06, Eugene Ezekiel <[EMAIL PROTECTED]> wrote:
Thanks Yonik for the reply. I got just a couple more questions,
1) Why does the explanantion print so many times?
Because it was a compound query with multiple parts to it. It's one explanation
with multiple parts.
From the explain output, I would guess the original query was something like
x x y or Contents:x Contents:x Contents:y
2) Since my query is made up of multiple terms how do I know what term "x"
is referring to?
It's actually a literal "x".
For example, in my index, if I search for
solr search lucene when the default field is text, then I get the
following explain:
1.1132671 = sum of:
0.27831677 = weight(text:solr in 84), product of:
0.57735026 = queryWeight(text:solr), product of:
3.85647 = idf(docFreq=4)
0.14970951 = queryNorm
0.48205876 = fieldWeight(text:solr in 84), product of:
1.0 = tf(termFreq(text:solr)=1)
3.85647 = idf(docFreq=4)
0.125 = fieldNorm(field=text, doc=84)
0.55663353 = weight(text:search in 84), product of:
0.57735026 = queryWeight(text:search), product of:
3.85647 = idf(docFreq=4)
0.14970951 = queryNorm
0.9641175 = fieldWeight(text:search in 84), product of:
2.0 = tf(termFreq(text:search)=4)
3.85647 = idf(docFreq=4)
0.125 = fieldNorm(field=text, doc=84)
0.27831677 = weight(text:lucen in 84), product of:
0.57735026 = queryWeight(text:lucen), product of:
3.85647 = idf(docFreq=4)
0.14970951 = queryNorm
0.48205876 = fieldWeight(text:lucen in 84), product of:
1.0 = tf(termFreq(text:lucen)=1)
3.85647 = idf(docFreq=4)
0.125 = fieldNorm(field=text, doc=84)
-Yonik
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