Xor Filters: Faster and Smaller Than Bloom Filters
Also of academic interest; Neural Bloom filter:
<a href="https://arxiv.org/abs/1906.04304" rel="nofollow">https://arxiv.org/abs/1906.04304</a><p>Achives optimally 36% space saving compared to BL but needs an fp accelerator to achieve the same throughput. Compares to perfect hasing, which also does not suppprt insertions.