Figure 8:
The data structures used by Smash++ to store the models in memory. (a) Table of 64-bit counters that uses up to 128 MB of memory, (b) table of 32 bit counters that consumes at most 960 MB of memory, (c) table of 8 bit approximate counters with memory usage of up to 1 GB, and (d) Count-Min-Log sketch of 4-bit counters, which consumes up to B of memory; e.g., if w = 230 and d = 4, it uses 2 GB of memory.