Looks like an interesting article, with complex problems and solutions. My problem is I have no idea what a "rotating bloom filter" would be used for in a real-world system.
It's a probabilistic cache. Standard Bloom filters can't add items indefinitely, and also can't evict old items to make room for new ones. Thus, rotating.
I also would like to know a use case, I know about bloom filters but not what makes a rotating one special. It sounds interesting but I wish the article lead with the purpose of the filter.
They should've just used a cuckoo filter.