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Posted to solr-user@lucene.apache.org by Shawn Heisey <so...@elyograg.org> on 2010/08/17 18:40:11 UTC
Re: Solr date "NOW" - format?
On 4/9/2010 7:35 PM, Lance Norskog wrote:
> Function queries are notoriously slow. Another way to boost by year is
> with range queries:
> [NOW-6MONTHS TO NOW]^5.0 ,
> [NOW-1YEARS TO NOW-6MONTHS]^3.0
> [NOW-2YEARS TO NOW-1YEARS]^2.0
> [* TO NOW-2YEARS]^1.0
>
> Notice that you get to have a non-linear curve when you select the
> ranges by hand.
Lance, I have worked out my major issue and now have my post date in
Solr as a tdate field named "pd." I cannot however figure out how to
actually send a query with a date boost like you've mentioned above.
I'd like to embed it right into the dismax handler definition, but it
would be good to also know how to send it in a query myself. Can you help?
Are the boosts indicated above a multiplier, or an addition?
Thanks,
Shawn
Re: Solr date "NOW" - format?
Posted by Shawn Heisey <so...@elyograg.org>.
My first attempt was adding this to the dismax handler:
<str name="bq">pd:[NOW-1MONTH TO NOW]^5.0</str>
<str name="bq">pd:[NOW-3MONTHS TO NOW-1MONTH]^3.0</str>
<str name="bq">pd:[NOW-1YEAR TO NOW-3MONTHS]^2.0</str>
<str name="bq">pd:[* TO NOW-1YEAR]^1.0</str>
This results in scores that are quite a bit lower (9.5 max score instead
of 11.7), but the order looks the same. No real change other than a
higher max score (10) if I leave only the first bq entry.
I wasn't able to figure out a way to put all the ranges in one bq,
everything I tried got zero results.
What am I doing wrong?
On 8/17/2010 8:36 PM, Shawn Heisey wrote:
> Would I do separate bq values for each of the ranges, or is there a
> way to include them all at once? If it's the latter, I'll need a full
> example with a field name, because I'm clueless. :)
>
> On 8/17/2010 2:29 PM, Lance Norskog wrote:
>> I think 'bq=' is what you want. In dismax the main query string is
>> assumed to go against a bunch of fields. This query is in the standard
>> (Lucene++) format. The query strings should handle the ^number syntax.
>>
>> http://www.lucidimagination.com/search/document/CDRG_ch07_7.4.2.9
>>
>> On Tue, Aug 17, 2010 at 9:40 AM, Shawn Heisey<so...@elyograg.org> wrote:
>>> On 4/9/2010 7:35 PM, Lance Norskog wrote:
>>>> Function queries are notoriously slow. Another way to boost by year is
>>>> with range queries:
>>>> [NOW-6MONTHS TO NOW]^5.0 ,
>>>> [NOW-1YEARS TO NOW-6MONTHS]^3.0
>>>> [NOW-2YEARS TO NOW-1YEARS]^2.0
>>>> [* TO NOW-2YEARS]^1.0
>>>>
>>>> Notice that you get to have a non-linear curve when you select the
>>>> ranges by hand.
>>> Lance, I have worked out my major issue and now have my post date in
>>> Solr as
>>> a tdate field named "pd." I cannot however figure out how to
>>> actually send
>>> a query with a date boost like you've mentioned above. I'd like to
>>> embed it
>>> right into the dismax handler definition, but it would be good to
>>> also know
>>> how to send it in a query myself. Can you help?
>>>
>>> Are the boosts indicated above a multiplier, or an addition?
>
Re: Solr date "NOW" - format?
Posted by Shawn Heisey <so...@elyograg.org>.
Would I do separate bq values for each of the ranges, or is there a
way to include them all at once? If it's the latter, I'll need a full
example with a field name, because I'm clueless. :)
On 8/17/2010 2:29 PM, Lance Norskog wrote:
> I think 'bq=' is what you want. In dismax the main query string is
> assumed to go against a bunch of fields. This query is in the standard
> (Lucene++) format. The query strings should handle the ^number syntax.
>
> http://www.lucidimagination.com/search/document/CDRG_ch07_7.4.2.9
>
> On Tue, Aug 17, 2010 at 9:40 AM, Shawn Heisey<so...@elyograg.org> wrote:
>> On 4/9/2010 7:35 PM, Lance Norskog wrote:
>>> Function queries are notoriously slow. Another way to boost by year is
>>> with range queries:
>>> [NOW-6MONTHS TO NOW]^5.0 ,
>>> [NOW-1YEARS TO NOW-6MONTHS]^3.0
>>> [NOW-2YEARS TO NOW-1YEARS]^2.0
>>> [* TO NOW-2YEARS]^1.0
>>>
>>> Notice that you get to have a non-linear curve when you select the
>>> ranges by hand.
>> Lance, I have worked out my major issue and now have my post date in Solr as
>> a tdate field named "pd." I cannot however figure out how to actually send
>> a query with a date boost like you've mentioned above. I'd like to embed it
>> right into the dismax handler definition, but it would be good to also know
>> how to send it in a query myself. Can you help?
>>
>> Are the boosts indicated above a multiplier, or an addition?
Re: Solr date "NOW" - format?
Posted by Lance Norskog <go...@gmail.com>.
I think 'bq=' is what you want. In dismax the main query string is
assumed to go against a bunch of fields. This query is in the standard
(Lucene++) format. The query strings should handle the ^number syntax.
http://www.lucidimagination.com/search/document/CDRG_ch07_7.4.2.9
On Tue, Aug 17, 2010 at 9:40 AM, Shawn Heisey <so...@elyograg.org> wrote:
> On 4/9/2010 7:35 PM, Lance Norskog wrote:
>>
>> Function queries are notoriously slow. Another way to boost by year is
>> with range queries:
>> [NOW-6MONTHS TO NOW]^5.0 ,
>> [NOW-1YEARS TO NOW-6MONTHS]^3.0
>> [NOW-2YEARS TO NOW-1YEARS]^2.0
>> [* TO NOW-2YEARS]^1.0
>>
>> Notice that you get to have a non-linear curve when you select the
>> ranges by hand.
>
> Lance, I have worked out my major issue and now have my post date in Solr as
> a tdate field named "pd." I cannot however figure out how to actually send
> a query with a date boost like you've mentioned above. I'd like to embed it
> right into the dismax handler definition, but it would be good to also know
> how to send it in a query myself. Can you help?
>
> Are the boosts indicated above a multiplier, or an addition?
>
> Thanks,
> Shawn
>
>
--
Lance Norskog
goksron@gmail.com