- Two sets $A$ and $B$ have the *same cardinality*, written $|A| = |B|$, if there exists a bijective function $f : A \rightarrow B$. If not, the sets have *unequal ...
Abstract: In this paper we study the problem of estimating the cardinality of pairwise set operations (union and intersection) over sets possessed by different data owners, while preserving ...
This library estimates the number of unique elements in a set, in a quick and memory-efficient manner. It's based on the following: Flajolet et al., "HyperLogLog: the analysis of a near-optimal ...
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