Does anyone have experience adding RDF data to Lucene (or other search engine) index? And now I'm not talking about indexing RDF data (string literals, labels, instance names, etc. …

Given the current TDB architecture, is it possible to use MapReduce to generate TDB indexes? First of all, this is not a complete answer. But, perhaps, it is a first step toward …

If I wanted to do semantic web application development in [some obscure language] and nothing is currently available, where would I go to find out how they work and how to build a …

Anyone have any interest in intergrating RDF and/or SPARQL with a PICK database? Has anyone tried this yet? I have some thoughts about what to try. One idea is to figure out how to …

I'm running SPARQL queries like: prefix ch: <http://pele.farmbio.uu.se/chembl/?> select count(?s) where { ?s a ch:Compound . } or any other 'a' query asking all Resourc …