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From "David Smiley (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-5016) Spatial clustering/grouping
Date Wed, 10 Jul 2013 13:41:49 GMT

    [ https://issues.apache.org/jira/browse/SOLR-5016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13704553#comment-13704553
] 

David Smiley commented on SOLR-5016:
------------------------------------

FWIW I plan to do grid based faceting / heat map in the near-ish future (by October?).  I'll
try to keep clustering in mind, that is leave a spot where that could be layered in -- but
I don't plan on doing clustering.

Region based clustering in particular is straight-up field value faceting.  It obviously requires
that you extracted the containing country at ingest into a separate field.
                
> Spatial clustering/grouping
> ---------------------------
>
>                 Key: SOLR-5016
>                 URL: https://issues.apache.org/jira/browse/SOLR-5016
>             Project: Solr
>          Issue Type: Wish
>          Components: spatial
>            Reporter: Jeroen Steggink
>            Priority: Minor
>              Labels: clustering, grouping, spatial
>
> Hi,
> It would be great if we could have some sort of spatial clustering/grouping of points
for efficiently plotting them on a map.
> I could think of clustering based on the following parameters:
> - Based on regions: continents, countries, statis, cities, etc;
> - A fixed number of clusters;
> - Radius, bbox, polygon
> Retrieved result would give the center of the cluster, average location or a polygon
of the cluster.
> An example of a usecase would be something like this:
> https://developers.google.com/maps/articles/toomanymarkers#markerclusterer
> Jeroen

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