1. What's the license of TurboPFor,TurboRLE ?<p>2. Have you tried comparing TurboPFor that with roaring bitmaps ?<p>3. Have you tried if it makes sense putting it in lucene (on the postings list)?<p>4. What forums would you suggest for low level stuff on compression,indexes,search-engine,db-engine,mechanical-sympathy ?<p>5. What do you work on in real-life? Or licensing the libs?<p>6. Is it possible to make lucene 10X+ faster and what would need to be done (in high level) ? (like what scylladb did to cassandra, like they didn't change the language but architecture explained here: <a href="http://www.scylladb.com/technology/architecture/" rel="nofollow">http://www.scylladb.com/technology/architecture/</a>)<p>7. What do you think of bing/bitfunnel using bloom-filters instead of posting-lists <a href="http://bitfunnel.org/strangeloop/" rel="nofollow">http://bitfunnel.org/strangeloop/</a> ?<p>8. And about <a href="http://research.microsoft.com/en-us/um/people/trishulc/papers/Maguro.pdf" rel="nofollow">http://research.microsoft.com/en-us/um/people/trishulc/paper...</a> ? Distributing documents by 'term' instead of 'id' ?