Re: Impact and WAND

2021-04-16 Thread Tomás Fernández Löbbe
Ah, great. Thanks! On Fri, Apr 16, 2021 at 10:57 AM Adrien Grand wrote: > Hi, > > Indeed BMW is only about disjunctions but the paper ( > http://engineering.nyu.edu/~suel/papers/bmw.pdf) shortly describes how > block max indexes can be used to speed up conjunctions as well using a > simple

Re: Impact and WAND

2021-04-16 Thread Adrien Grand
Hi, Indeed BMW is only about disjunctions but the paper ( http://engineering.nyu.edu/~suel/papers/bmw.pdf) shortly describes how block max indexes can be used to speed up conjunctions as well using a simple algorithm that they call Block Max And, which we implemented in the

Re: Impact and WAND

2021-04-16 Thread Tomás Fernández Löbbe
I was looking at the nightly benchmarks[1] and noticed a big jump in performance for conjunction queries when LUCENE-8060 was merged. I was puzzled because I didn't expect BMW to help in this type of queries, but I guess that's the "other optimizations" you were talking about? Do you have any