[harishkm]

The standard Lucene indexing model will be faster for simple flat documents

SIREn makes sense for any document with 1..* nested relations. The performance boost is proportional to the number of nested objects.

Further, SIREn also is truly schemaless. Which means that the type for a property can be different in different documents. Something that is likely to happen in complex scenarios.

ps : I work for siren.solutions.

[PaulHoule]

I know Giovanni and some other SIREn people and this is a product that has amazing computer science and software engineering built in.

[dholowiski]

Me too! (I'm a customer). These guys are brilliant, and the science behind what they do is (usually) way over my head.