https://github.com/papers-we-love/papers-we-love/blob/master/caching/a-constant-algorithm-for-implementing-the-lfu-cache-eviction-scheme.pdf?raw=true [a-constant-algorithm-for-implementing-the-lfu-cache-eviction-scheme.pdf](https://github.com/GrappigPanda/Olivia/files/923929/a-constant-algorithm-for-implementing-the-lfu-cache-eviction-scheme.pdf)