Response to the comment Confidence in confidence distributions!
Response to the comment Confidence in confidence distributions!
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回复评论置信度分布的置信度!
DOI:
10.1098/rspa.2020.0579
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Ferson, Scott
中科院分区:
文献类型:
--
作者:
Martin, Ryan;Balch, Michael S.;Ferson, Scott
Thanks to Drs Céline Cunen, Nils Lid Hjort and Tore Schweder for their interest in our recent contribution [1] concerning the probability dilution phenomenon in satellite conjunction analysis and, more generally, the difficulties associated with representing statistical inference using ordinary or precise probabilities. Our analysis focused primarily on Bayesian uncertainty quantification but, of course, this is not the only probabilistic approach available, so we welcome a confidence distribution-based solution from those who literally wrote the book on confidence distributions [2]. Their illustration reproduces the lack of proper calibration—or false confidence—that can emerge when marginalizing a Bayesian posterior distribution and highlights the difference between Bayesian posteriors and confidence distributions (CDs) with respect to the validity property advocated in our paper. However, the message presented by Cunen et al.[3]—that replacing a Bayesian posterior distribution with a CD is all it takes to overcome false confidence—is potentially misleading. Our false confidence theorem applies to all epistemic probability distributions, including CDs; so, contrary to the authors’ claim, their proposed CD is at risk of false confidence too. In particular, as is well known, CDs only support reliable inferences on one-sided propositions of the form (−∞, a] or [a,+∞). Other sets, including two-sided intervals and their complements, are still subject to the false confidence phenomenon uncovered in Balch et al.[1].
DOI:
10.1098/rspa.2019.0781
发表时间:
2020
期刊:
Proceedings of the Royal Society A
影响因子:
--
作者:
Céline Cunen;N. Hjort;T. Schweder
通讯作者:
T. Schweder
影响因子:
3.9
作者:
T. Denoeux;Shoumei Li
通讯作者:
Shoumei Li
影响因子:
5.7
作者:
Fraser, D. A. S.
通讯作者:
Fraser, D. A. S.