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From Andrea Gazzarini <a.gazzar...@gmail.com>
Subject Re: Solr + RDF = SolRDF
Date Tue, 28 Apr 2015 11:30:52 GMT
Hi Charlie,
definitely cool and interesting.

Best,
Andrea

On 04/28/2015 10:20 AM, Charlie Hull wrote:
> On 27/04/2015 21:41, Andrea Gazzarini wrote:
>> Hi guys,
>> I'd like to share with you a project (actually a hobby for me) where I'm
>> spending my free time, maybe someone could get some idea or benefit 
>> from it.
>>
>> https://github.com/agazzarini/SolRDF
>>
>> I called it SolRDF (Solr + RDF): It is a set of Solr extensions for
>> managing (indexing and querying) RDF data.
>>
>> As a first step I wrote a set of classes for injecting Apache Jena RDF
>> cababilities in Solr.
>
> Hi Andrea,
>
> Interesting...we've been working with Jena and SPARQL queries as part 
> of our BioSolr project: we presented on this in London last week 
> (includes links to slides and code): 
> http://www.flax.co.uk/blog/2015/04/24/lucenesolr-london-meetup-biosolr-and-query-deep-dive/
>
> Cheers
>
> Charlie
>
>
>>
>> That allows to
>>
>>     - index RDF data using one of the standard formats (n-triples, 
>> rdf+xml,
>>     turtle)
>>     - query those data using SPARQL, the RDF query language
>>
>> Trying all of that is just a matter of two minutes, as illustrated in 
>> this
>> post [1]. Follow those five steps and Solr will quickly act as a fully
>> compliant SPARQL 1.1 endpoint.
>>
>> On top of that, I'm going further with the development of what I called
>> "Hybrid mode", where Solr capabilities, like faceting, can be applied 
>> to an
>> RDF Dataset queried using SPARQL. You can read more about this in 
>> this post
>> [2] or in the project Wiki [3]. Two kinds of facets (object and range
>> object faceting) are already working and available in the master; I'd 
>> like
>> to integrate pivot and interval facets, too.
>>
>> As I said this is just an amusement for me (and a great chance to 
>> explore
>> how Solr works behind the scenes) so I'm gradually and slowly going 
>> ahead,
>> making available only "stable" features.
>>
>> Any feedback / idea / comment / question is warmly welcome ;)
>>
>> Best,
>>
>> Andrea
>>
>> [1]
>> http://andreagazzarini.blogspot.it/2014/12/a-solr-rdf-store-and-sparql-endpoint-in.html

>>
>>
>> [2]
>> http://andreagazzarini.blogspot.it/2015/04/rdf-faceting-with-apache-solr-solrdf.html

>>
>>
>> [3] https://github.com/agazzarini/SolRDF/wiki/Faceted%20search
>>
>
>


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