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Adaptive confidence bands
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DOI：10.1214/07-AOS500.png)
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Abstract
En 中文
We show that there do not exist adaptive confidence bands for curve estimation except under very restrictive assumptions. We propose instead to construct adaptive bands that cover a surrogate function f* which is close to, but simpler than, f. The surrogate captures the significant features in f. We establish lower bounds on the width for any confidence band for f* and construct a procedure that comes within a small constant factor of attaining the lower bound for finite-samples.
Keywords:
nonparametric confidence bands
nonparametric regression
adaptive confidence sets
lower bounds
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