score = sum of boosts

[Joe Calderon <ca...@gmail.com>]

hello *, what would be the best approach to return the sum of boosts
as the score?

ex:
a dismax handler boosts matches to field1^100 and field2^50, a query
matches both fields hence the score for that row would be 150



is this something i could do with a function query or do i need to
hack up DisjunctionMaxScorer ?

--joe

Re: score = sum of boosts

[Walter Underwood <wu...@wunderwood.org>]

You could start with a TF formula that ignores frequencies above 1.  
"onOffTF", I guess, returning 1 if the term is there one or more times.

Or, you could tell us what you are trying to achieve.

wunder

On Sep 3, 2009, at 12:28 AM, Shalin Shekhar Mangar wrote:

> On Thu, Sep 3, 2009 at 4:09 AM, Joe Calderon  
> <ca...@gmail.com> wrote:
>
>> hello *, what would be the best approach to return the sum of boosts
>> as the score?
>>
>> ex:
>> a dismax handler boosts matches to field1^100 and field2^50, a query
>> matches both fields hence the score for that row would be 150
>>
>>
> Not really. The tf-idf score would be multiplied by 100 for field1  
> and by 50
> for field2. The score can be more than 150 if both fields match.
>
>
>>
>> is this something i could do with a function query or do i need to
>> hack up DisjunctionMaxScorer ?
>>
>>
> Can you give a little more background on what you want to achieve  
> this way?
>
> -- 
> Regards,
> Shalin Shekhar Mangar.

Re: score = sum of boosts

[Shalin Shekhar Mangar <sh...@gmail.com>]

On Thu, Sep 3, 2009 at 4:09 AM, Joe Calderon <ca...@gmail.com> wrote:

> hello *, what would be the best approach to return the sum of boosts
> as the score?
>
> ex:
> a dismax handler boosts matches to field1^100 and field2^50, a query
> matches both fields hence the score for that row would be 150
>
>
Not really. The tf-idf score would be multiplied by 100 for field1 and by 50
for field2. The score can be more than 150 if both fields match.


>
> is this something i could do with a function query or do i need to
> hack up DisjunctionMaxScorer ?
>
>
Can you give a little more background on what you want to achieve this way?

-- 
Regards,
Shalin Shekhar Mangar.