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From Lucas Cotta <lucco...@gmail.com>
Subject Re: How to implement a custom boost function
Date Tue, 04 Oct 2016 14:24:03 GMT
Sorry Bill, I didn't understand your suggestion. Could I implement a sort
function in this case?
Thanks

2016-10-04 11:12 GMT-03:00 <billnbell@gmail.com>:

> You can pahinaye and sort as long as it is the same each time. Sort can be
> a function value too. I.e. Sort=geodist() asc...
>
> bq can also boost based on a field name
>
>
>
> Bill Bell
> Sent from mobile
>
>
> > On Oct 3, 2016, at 11:28 PM, Lucas Cotta <luccotta@gmail.com> wrote:
> >
> > Hi Walter, unfortunately I use pagination so that would not be possible..
> >
> > Thanks
> >
> > 2016-10-04 0:51 GMT-03:00 Walter Underwood <wunder@wunderwood.org>:
> >
> >> How about sorting them after you get them back from Solr?
> >>
> >> wunder
> >> Walter Underwood
> >> wunder@wunderwood.org
> >> http://observer.wunderwood.org/  (my blog)
> >>
> >>
> >>> On Oct 3, 2016, at 6:45 PM, Lucas Cotta <luccotta@gmail.com> wrote:
> >>>
> >>> I actually could also use a custom similarity class that always returns
> >> 1.0
> >>> then I could use small boost factors such as ^1, ^2, ^3, etc.
> >>>
> >>> But I want to do this only in some specific queries (that may contain
> >> other
> >>> fields besides studentId)
> >>>
> >>> How could I do this, use the custom similarity class only for some
> >> queries?
> >>> Is it possible?
> >>>
> >>> Thanks!
> >>>
> >>> 2016-10-03 19:49 GMT-03:00 Lucas Cotta <luccotta@gmail.com>:
> >>>
> >>>> Hello,
> >>>>
> >>>> I'm new in Solr (4.7.2) and I was given the following requirement:
> >>>>
> >>>> Given a query such as:
> >>>>
> >>>> studentId:(875141 OR 873071 OR 875198 OR 108142 OR 918841 OR 870688
OR
> >>>> 107920 OR 870637 OR 870636 OR 870635 OR 918792 OR 107721 OR 875078 OR
> >>>> 875166 OR 875151 OR 918829 OR 918808)
> >>>>
> >>>> I want the results to be ordered by the same order the elements were
> >>>> informed in the query. This would be similar to MySQL's ORDER BY
> >>>> FIELD(id, 3,2,5,7,8,1).
> >>>>
> >>>> I have tried to use term boosting
> >>>> <https://wiki.apache.org/solr/SolrRelevancyCookbook#
> >> Boosting_Ranking_Terms>
> >>>> in the query but that only works when I use big factors like this:
> >> 875078^100000
> >>>> OR 875166^10000 OR 875151^1000 OR 918829^100OR 918808^10
> >>>>
> >>>> But that would cause the query to be too big in case I have 200 ids
> for
> >>>> instance.
> >>>>
> >>>> So it seems I need to implement a custom FunctionQuery.
> >>>> I'm a little lost on how to do that. Could someone please give me an
> >> idea?
> >>>> Which classes should my custom class extend from? Where should I place
> >> this
> >>>> class? Should I add to Solr project it self and regenerate the JAR?
> >>>>
> >>>> Thanks
> >>>>
> >>
> >>
>

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