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Questions related to permutations, bijections from a finite (or sometimes infinite) set to itself.

1 vote
4 answers
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How is a permutation taken as an equivalent of a hash function in MinWise independent permut...

In the paper on MinWise independent permutations (MinWise independent permutations), the authors say that it is often convenient to consider permutations rather than hash functions (Pg-3). … What I understand of this paper is something like this - To reduce the dimensionality of a set, we can generate (a fixed number of) minwise independent permutations, and for all these different permutations
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