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Posted to solr-user@lucene.apache.org by entdeveloper <ca...@gmail.com> on 2011/11/01 19:58:47 UTC
Re: Selective Result Grouping
Martijn v Groningen-2 wrote:
>
> When using the group.field option values must be the same otherwise
> they don't get grouped together. Maybe fuzzy grouping would be nice.
> Grouping videos and images based on mimetype should be easy, right?
> Videos have a mimetype that start with video/ and images have a
> mimetype that start with image/. Storing the mime type's subtype and
> type in separate fields and group on the type field would do the job.
> Off course you need to know the mimetype during indexing, but
> solutions like Apache Tika can do that for you.
Not necessarily interested in grouping by mimetype (that's an analysis
issue). I simply used videos and images as an example.
I'm not sure what you mean by fuzzy grouping. But my goal is to have
collapse be more selective somehow on what gets grouped. As a more specific
example, I have a field called 'type', with the following possible field
values:
Type
------
image
video
webpage
Basically I want to be able to collapse all the images into a single result
so that they don't fill up the first page of the results. This is not
possible with the current grouping implementation because if you call
group.field=type, it'll group everything. I do not want to collapse videos
or webpages, only images.
I've attached a screenshot of google's srp to help explain what I mean.
http://lucene.472066.n3.nabble.com/file/n3471548/Screen_Shot_2011-11-01_at_11.52.04_AM.png
Hopefully that makes more sense. If it's still not clear I can email you
privately.
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Re: Selective Result Grouping
Posted by entdeveloper <ca...@gmail.com>.
Created an issue in jira for this features:
https://issues.apache.org/jira/browse/SOLR-2884
Martijn v Groningen-2 wrote:
>
> Ok I think I get this. I think this can be achieved if one could
> specify a filter inside a group and only documents that pass the
> filter get grouped. For example only group documents with the value
> image for the mimetype field. This filter should be specified per
> group command. Maybe we should open an issue for this?
>
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Re: Selective Result Grouping
Posted by Martijn v Groningen <ma...@gmail.com>.
Ok I think I get this. I think this can be achieved if one could
specify a filter inside a group and only documents that pass the
filter get grouped. For example only group documents with the value
image for the mimetype field. This filter should be specified per
group command. Maybe we should open an issue for this?
Martijn
On 1 November 2011 19:58, entdeveloper <ca...@gmail.com> wrote:
>
> Martijn v Groningen-2 wrote:
>>
>> When using the group.field option values must be the same otherwise
>> they don't get grouped together. Maybe fuzzy grouping would be nice.
>> Grouping videos and images based on mimetype should be easy, right?
>> Videos have a mimetype that start with video/ and images have a
>> mimetype that start with image/. Storing the mime type's subtype and
>> type in separate fields and group on the type field would do the job.
>> Off course you need to know the mimetype during indexing, but
>> solutions like Apache Tika can do that for you.
>
> Not necessarily interested in grouping by mimetype (that's an analysis
> issue). I simply used videos and images as an example.
>
> I'm not sure what you mean by fuzzy grouping. But my goal is to have
> collapse be more selective somehow on what gets grouped. As a more specific
> example, I have a field called 'type', with the following possible field
> values:
>
> Type
> ------
> image
> video
> webpage
>
>
> Basically I want to be able to collapse all the images into a single result
> so that they don't fill up the first page of the results. This is not
> possible with the current grouping implementation because if you call
> group.field=type, it'll group everything. I do not want to collapse videos
> or webpages, only images.
>
> I've attached a screenshot of google's srp to help explain what I mean.
>
> http://lucene.472066.n3.nabble.com/file/n3471548/Screen_Shot_2011-11-01_at_11.52.04_AM.png
>
> Hopefully that makes more sense. If it's still not clear I can email you
> privately.
>
> --
> View this message in context: http://lucene.472066.n3.nabble.com/Selective-Result-Grouping-tp3391538p3471548.html
> Sent from the Solr - User mailing list archive at Nabble.com.
>
--
Met vriendelijke groet,
Martijn van Groningen