adv

Asymptotic nonequivalence of density estimation and Gaussian white noise for small densities. (arXiv:1802.03425v1 [math.ST])

It is well-known that density estimation on the unit interval is asymptotically equivalent to a Gaussian white noise experiment, provided the densities are sufficiently smooth and uniformly bounded away from zero. We show that a uniform lower bound, whose size we sharply characterize, is in general necessary for asymptotic equivalence to hold.查看全文

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