Is this possible to do? If so, how?

On 7/25/11, Brian Lamb <brian.l...@journalexperts.com> wrote:
> Yes and that's causing some problems in my application. Is there a way to
> truncate the 7th decimal place in regards to sorting by the score?
>
> On Fri, Jul 22, 2011 at 4:27 PM, Yonik Seeley
> <yo...@lucidimagination.com>wrote:
>
>> On Fri, Jul 22, 2011 at 4:11 PM, Brian Lamb
>> <brian.l...@journalexperts.com> wrote:
>> > I've noticed some peculiar scoring issues going on in my application.
>> > For
>> > example, I have a field that is multivalued and has several records
>> > that
>> > have the same value. For example,
>> >
>> > <arr name="references">
>> >  <str>National Society of Animal Lovers</str>
>> >  <str>Nat. Soc. of Ani. Lov.</str>
>> > </arr>
>> >
>> > I have about 300 records with that exact value.
>> >
>> > Now, when I do a search for references:(national society animal
>> > lovers),
>> I
>> > get the following results:
>> >
>> > <id>252</id>
>> > <id>159</id>
>> > <id>82</id>
>> > <id>452</id>
>> > <id>105</id>
>> >
>> > When I do a search for references:(nat soc ani lov), I get the results
>> > ordered differently:
>> >
>> > <id>510</id>
>> > <id>122</id>
>> > <id>501</id>
>> > <id>82</id>
>> > <id>252</id>
>> >
>> > When I load all the records that match, I notice that at some point,
>> > the
>> > scores aren't the same but differ by only a little:
>> >
>> > 1.471928 in one and the one before it was 1.471929
>>
>> 32 bit floats only have 7 decimal digits of precision, and in floating
>> point land (a+b+c) can be slightly different than (c+b+a)
>>
>> -Yonik
>> http://www.lucidimagination.com
>>
>

Reply via email to