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Optimal Support Size Testing

Wang, Qisheng
arXiv (All) · Papers
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data-structures-and-algorithmsinformation-theorystatistics-theory
We present an optimal tester for support size that determines whether an unknown probability distribution is supported on $n$ elements or $\varepsilon$-far away (in total variation distance) with sample complexity $Θ(\frac{n}{\varepsilon\log(n)})$, improving the prior best $O(\frac{n}{\varepsilon\lo
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