I'm confident the relevance is as good as or better than Lucene. I especially like my phrase queries and how they seem more relevant compared to that of a Lucene phrase query. The scoring is a half-way implementation of word2vec (in a lot of ways similar to the scoring mechanics of Lucene's tf-idf scheme). I'm aiming for full word2vec implementation in vNext.
I have only my own benchmark tests to tell me I'm faster than Lucene. Which is why I'm contemplating writing a formal proof both of ResinDB's performance and of it's relevance.
My test data has been the English verison of Wikipedia plus Project Gutenberg. I suppose I could publish those indices to the world, as a demo search engine. I don't think a soul would care about a proper searchable Project Gutenberg though. Looking into common crawl now.
I'm a part-time father of two, employed doing tedious unmotivating work, focusing completely on my spare time project. I need some advise as to what the next step should be, if I wanted to make this into a business that I could spend all of my time with, not only nights and weekends. Formal proof? Demo?
Side note: one of the most approachable people in the database building community is Oren Eini, creator of RavenDB. He's reviewing ResinDB on his blog. I've read a preview of the entire series of posts, implemented solutions for the best parts of the critique and just released v2. Blog is here: http://ayende.com/blog