Necessary Criterion for Approximate Recoverability
نویسندگان
چکیده
منابع مشابه
A universal approximate cross-validation criterion for regular risk functions.
Selection of estimators is an essential task in modeling. A general framework is that the estimators of a distribution are obtained by minimizing a function (the estimating function) and assessed using another function (the assessment function). A classical case is that both functions estimate an information risk (specifically cross-entropy); this corresponds to using maximum likelihood estimat...
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σ using both SENSE and the hybrid CS+SENSE methods. Note that the clear optimality peak in the CS result. (c) Plot of the upper bound derived in (5) showing that the probability that μ(E) exceeds some threshold is minimal at roughly the same configuration yielding optimal SNR in (b). (d) Monte Carlo simulation of μ(E) for 1000 random Fourier trials at each value of σ. Note that the coil configu...
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ژورنال
عنوان ژورنال: Annales Henri Poincaré
سال: 2018
ISSN: 1424-0637,1424-0661
DOI: 10.1007/s00023-018-0715-1