Re: scoring individual values in a multivalued field

[abhishek007 <ab...@rapleaf.com>]

I hope I am in the right thread for my doubt, which is somewhat related to
the ongoing discussion.
I have seen that when we search in a multivaled field, the length
normalization factor considers all values of the field, rather than
considering only the matched field value.

For example, if my document is like:

<document>
  <field name="author">John Hennessy</field> 
  <field name="author">David Patterson</field> 
</document>

and my query string is "Hennessy", the length normalization factor considers
all 4 tokens as in "John", "Hennessy",  "David",  "Patterson". This is
similar to the score if my field was like:

  <field name="author">John Hennessy David Patterson</field> 

I want the score to consider only that field value with any matches (here,
"John Hennessy"). 
Thanks in advance

-Abhishek



hossman wrote:
> 
> 
> : I ran into the same problem some time ago, couldn't find any relation to
> the
> : boost values on the multivalued field and the search results. Does
> anybody
> 
> as the OP mentioned, the index time boost values for a field are per field 
> *name* not per value ... they all get folded in together into hte 
> fieldNorm for that field name in that document.
> 
> 
> 
> -Hoss
> 
> 
> 

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Re: scoring individual values in a multivalued field

[abhishek007 <ab...@rapleaf.com>]

: unfortunately not possible.  lengthNorm is part of fieldNorm and for each 
: doc there is one fieldNorm per field name...

Thanks for the reply Chris, this solves part of my problem. I have explained
my problem in much more detail in a separate thread (as it would have been
out of context here). 

http://www.nabble.com/Querying-multivalued-field---can-scoring-formula-consider-only-matched-values--tt19865873.html#a19865873






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Re: scoring individual values in a multivalued field

[Chris Hostetter <ho...@fucit.org>]

: and my query string is "Hennessy", the length normalization factor considers
: all 4 tokens as in "John", "Hennessy",  "David",  "Patterson". This is
: similar to the score if my field was like:
: 
:   <field name="author">John Hennessy David Patterson</field> 
: 
: I want the score to consider only that field value with any matches (here,
: "John Hennessy"). 
: Thanks in advance

unfortunately not possible.  lengthNorm is part of fieldNorm and for each 
doc there is one fieldNorm per field name...

: > as the OP mentioned, the index time boost values for a field are per field 
: > *name* not per value ... they all get folded in together into hte 
: > fieldNorm for that field name in that document.



-Hoss