This morning I was reading http://hashmade.fr/elastic-search-geo-distance-search-with-sorted-and-fac... And the code https://github.com/jsebrien/elastic-search-tests I have to say that we compare quite well in number of lines of code and readability. Considering that ElasticSearch is considered the easy tool / API in the search space, I did not expect that. We could do better on the facet side, I particular to retrieve the facet data. By the way, they offer a way to facet by spatial distance, Hardy, Nicolas, how hard would it be to do the same? Emmanuel _______________________________________________ hibernate-dev mailing list hibernate-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/hibernate-dev

I'm more interested in something like Within 10 kms (23) Between 10 and 50 kms (45) Above 50 kms (75) On Wed 2013-07-03 11:24, Nicolas Helleringer wrote: > Was is demonstrated here has nothing of a facet : these are only aggregates. > > <quote> > GeoDistanceFacet results: > ------------------------------------------------------------- > Distance from origin: 0.0 > Distance to requested: 1000.0 > Number of results: 29 > Minimum distance: 0.0 > Maximum distance: 899.5358131385483 > Sum of distances: 17320.209230844222 > Mean distance: 597.2485941670421 > </quote> > > I see nothing we cannot do. > > Niko > > 2013/7/3 Emmanuel Bernard <emmanuel(a)hibernate.org&gt;: > > This morning I was reading http://hashmade.fr/elastic-search-geo-distance-search-with-sorted-and-fac... > > And the code https://github.com/jsebrien/elastic-search-tests > > > > I have to say that we compare quite well in number of lines of code and readability. Considering that ElasticSearch is considered the easy tool / API in the search space, I did not expect that. > > > > We could do better on the facet side, I particular to retrieve the facet data. > > > > By the way, they offer a way to facet by spatial distance, Hardy, Nicolas, how hard would it be to do the same? > > > > Emmanuel > > _______________________________________________ > > hibernate-dev mailing list > > hibernate-dev(a)lists.jboss.org > > https://lists.jboss.org/mailman/listinfo/hibernate-dev

It seems to me that for each geo facet, you need to execute a query which is fast. So in my example, the query will be executed 4 times. One for the regular query and 3 times with different radius retrieving the count. In other words, you don't really need to compute the distance for each point. Wouldn't that work? Emmanuel On Wed 2013-07-03 14:21, Nicolas Helleringer wrote: > The difficulty in this is that unlike other facets counts those are to > be dynamically computed. > > The current facet systems (either native Lucene or Hibernate ones) are > using the Lucen Token reverse > indexes performance to compute the facets on queries results that can > be very large. > > This cannot be done here as the distance to the search center is dynamic. > If you have a query with 10k result and you display only the first ten > results as first page and to strengthen > the search you want geo facets then you have to compute distance on > all the 10k results to produce that. > On the performance PoV this will fail. > > Niko > > > 2013/7/3 Emmanuel Bernard <emmanuel(a)hibernate.org&gt;: > > I'm more interested in something like > > > > Within 10 kms (23) > > Between 10 and 50 kms (45) > > Above 50 kms (75) > > > > > > On Wed 2013-07-03 11:24, Nicolas Helleringer wrote: > >> Was is demonstrated here has nothing of a facet : these are only aggregates. > >> > >> <quote> > >> GeoDistanceFacet results: > >> ------------------------------------------------------------- > >> Distance from origin: 0.0 > >> Distance to requested: 1000.0 > >> Number of results: 29 > >> Minimum distance: 0.0 > >> Maximum distance: 899.5358131385483 > >> Sum of distances: 17320.209230844222 > >> Mean distance: 597.2485941670421 > >> </quote> > >> > >> I see nothing we cannot do. > >> > >> Niko > >> > >> 2013/7/3 Emmanuel Bernard <emmanuel(a)hibernate.org&gt;: > >> > This morning I was reading http://hashmade.fr/elastic-search-geo-distance-search-with-sorted-and-fac... > >> > And the code https://github.com/jsebrien/elastic-search-tests > >> > > >> > I have to say that we compare quite well in number of lines of code and readability. Considering that ElasticSearch is considered the easy tool / API in the search space, I did not expect that. > >> > > >> > We could do better on the facet side, I particular to retrieve the facet data. > >> > > >> > By the way, they offer a way to facet by spatial distance, Hardy, Nicolas, how hard would it be to do the same? > >> > > >> > Emmanuel > >> > _______________________________________________ > >> > hibernate-dev mailing list > >> > hibernate-dev(a)lists.jboss.org > >> > https://lists.jboss.org/mailman/listinfo/hibernate-dev

Can you then also easily (aka really fast) know which are those points -- even with really big number of data? On Jul 3, 2013, at 2:14 PM, Emmanuel Bernard <emmanuel(a)hibernate.org&gt; wrote: > I'm more interested in something like > > Within 10 kms (23) > Between 10 and 50 kms (45) > Above 50 kms (75) > > > On Wed 2013-07-03 11:24, Nicolas Helleringer wrote: >> Was is demonstrated here has nothing of a facet : these are only aggregates. >> >> <quote> >> GeoDistanceFacet results: >> ------------------------------------------------------------- >> Distance from origin: 0.0 >> Distance to requested: 1000.0 >> Number of results: 29 >> Minimum distance: 0.0 >> Maximum distance: 899.5358131385483 >> Sum of distances: 17320.209230844222 >> Mean distance: 597.2485941670421 >> </quote> >> >> I see nothing we cannot do. >> >> Niko >> >> 2013/7/3 Emmanuel Bernard <emmanuel(a)hibernate.org&gt;: >>> This morning I was reading http://hashmade.fr/elastic-search-geo-distance-search-with-sorted-and-fac... >>> And the code https://github.com/jsebrien/elastic-search-tests >>> >>> I have to say that we compare quite well in number of lines of code and readability. Considering that ElasticSearch is considered the easy tool / API in the search space, I did not expect that. >>> >>> We could do better on the facet side, I particular to retrieve the facet data. >>> >>> By the way, they offer a way to facet by spatial distance, Hardy, Nicolas, how hard would it be to do the same? >>> >>> Emmanuel >>> _______________________________________________ >>> hibernate-dev mailing list >>> hibernate-dev(a)lists.jboss.org >>> https://lists.jboss.org/mailman/listinfo/hibernate-dev > _______________________________________________ > hibernate-dev mailing list > hibernate-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/hibernate-dev _______________________________________________ hibernate-dev mailing list hibernate-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/hibernate-dev