Chris,
Earlier I was trying to modify the Similarity computation to make it
field dependent (we are trying to change tf based on the field). Now, I have
reverted the custom computation so that the default Similarity is used. Fro
testing, I boosted a single field in one doc.
<doc boost="1.33">
<field name="show_all_flag" boost="2.0">Y</field>
...
</doc>
This is what I see in the explain -
2.5 = (MATCH) sum of:
2.5 = (MATCH) fieldWeight(show_all_flag:Y in 17), product of:
1.0 = tf(termFreq(show_all_flag:Y)=1)
1.0 = idf(docFreq=36239)
2.5 = fieldNorm(field=show_all_flag, doc=17)
Again, I fail to understand where it is doing a multiplication by 1.25
(score (2.5) = field_boost (2.0) * 1.25 ??).
Thanks.
Chris Hostetter wrote:
>
>
> Ditto everything Mike said, but i'm also curious what Similarity changes
> you made ... without knowing what that code looks like, all bets are off
> in terms of anyone being able to help you understand the scores you are
> seeing.
>
> : I am not quite sure how the score changed from 1.33 to 1.25. I am not
> quite
> : sure how this might have happened - I have modified the custom
> similarity
> : but I don't quite have an explanation of how the score changed.
>
>
> -Hoss
>
>
>
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