Re: displaying search results in map
Did you look at http://stackoverflow.com/questions/11319465/geoclusters-in-solr? This sounds similar to what you're asking for based on geohashes of the points of interest. On Thu, Oct 11, 2012 at 2:25 PM, Harish Rawat wrote: > Sorry for not being clear. Here are more details > > 1.) The results are displayed in geographical map > 2.) Each document has latitude, longitude field and other fields that can > be searched on > 3.) The search will be done for all documents within a lat/long range. > 4.) The lat/lon range is divided into N*N (lets say 64 grids) and for each > grid we want following > a) no. of documents in that grid > b.) top K documents in that grid > c.) avg of latitude and longitude value for all results in that grid > > In lucene I can implement my own custom collector and do all the > calculations listed in #4. I wanted to understand the best way to implement > (or use existing if any :) this logic in solr > > Regards > Harish > > > > On Thu, Oct 11, 2012 at 11:08 AM, Gora Mohanty wrote: > >> On 11 October 2012 23:16, Harish Rawat wrote: >> >> > Hi >> > >> > I am working on a project to display the search results on the map. The >> > idea is to divide the map into N*N grids and show counts for each grid >> and >> > allow users to view top result on each grid >> > >> > any suggestions on how best to accomplish this with solr? >> > >> >> Your description is not very clear. What search results >> are you seeking to display on what kind of a map? Are you >> talking about a geographical map, or something like a 3D >> histogram (which is what you N x N grid seems to refer to)? >> Please clarify. >> >> In either case, it is quite unlikely that Solr will handle the >> presentation for you. Solr is a search engine that will return >> you desired search results. What to do with the search results >> is an issue for a presentation layer. >> >> Regards, >> Gora >>
Re: displaying search results in map
On 11 October 2012 23:55, Harish Rawat wrote: > Sorry for not being clear. Here are more details > > 1.) The results are displayed in geographical map > 2.) Each document has latitude, longitude field and other fields that can > be searched on > 3.) The search will be done for all documents within a lat/long range. > 4.) The lat/lon range is divided into N*N (lets say 64 grids) and for each > grid we want following > a) no. of documents in that grid > b.) top K documents in that grid > c.) avg of latitude and longitude value for all results in that grid > > In lucene I can implement my own custom collector and do all the > calculations listed in #4. I wanted to understand the best way to implement > (or use existing if any :) this logic in solr > [...] Hmm, I am not that familiar with Lucene, so maybe someone else will chip in with advice. However, what you describe in point 4 seems to be a clustering strategy for geographical points. Typically, we use pre-defined strategies from OpenLayers ( http://openlayers.org ), or custom strategies. Regards, Gora
Re: displaying search results in map
On 11 October 2012 23:16, Harish Rawat wrote: > Hi > > I am working on a project to display the search results on the map. The > idea is to divide the map into N*N grids and show counts for each grid and > allow users to view top result on each grid > > any suggestions on how best to accomplish this with solr? > Your description is not very clear. What search results are you seeking to display on what kind of a map? Are you talking about a geographical map, or something like a 3D histogram (which is what you N x N grid seems to refer to)? Please clarify. In either case, it is quite unlikely that Solr will handle the presentation for you. Solr is a search engine that will return you desired search results. What to do with the search results is an issue for a presentation layer. Regards, Gora
