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pro vyhledávání: '"Koning, Nick W."'
Autor:
Hemerik, Jesse, Koning, Nick W
A fundamental assumption of classical hypothesis testing is that the significance threshold $\alpha$ is chosen independently from the data. The validity of confidence intervals likewise relies on choosing $\alpha$ beforehand. We point out that the in
Externí odkaz:
http://arxiv.org/abs/2410.02306
Autor:
Koning, Nick W.
Testing has developed into the fundamental statistical framework for falsifying hypotheses. Unfortunately, tests are binary in nature: a test either rejects a hypothesis or not. Such binary decisions do not reflect the reality of many scientific stud
Externí odkaz:
http://arxiv.org/abs/2409.05654
In an optimization problem, the quality of a candidate solution can be characterized by the optimality gap. For most stochastic optimization problems, this gap must be statistically estimated. We show that standard estimators are optimistically biase
Externí odkaz:
http://arxiv.org/abs/2408.15690
Autor:
Koning, Nick W.
An unfortunate feature of traditional hypothesis testing is the necessity to pre-specify a significance level $\alpha$ to bound the size of the test: its probability to falsely reject the hypothesis. Indeed, a data-dependent selection of $\alpha$ wou
Externí odkaz:
http://arxiv.org/abs/2312.08040
Autor:
Koning, Nick W.
We study post-hoc ($e$-value-based) and post-hoc anytime valid inference for testing exchangeability and general group invariance. Our methods satisfy a generalized Type I error control that permits a data-dependent selection of both the number of ob
Externí odkaz:
http://arxiv.org/abs/2310.01153
Autor:
Koning, Nick W.
It is conventionally believed that a permutation test should ideally use all permutations. If this is computationally unaffordable, it is believed one should use the largest affordable Monte Carlo sample or (algebraic) subgroup of permutations. We ch
Externí odkaz:
http://arxiv.org/abs/2307.12832
Autor:
Koning, Nick W., Hemerik, Jesse
Non-parametric tests based on permutation, rotation or sign-flipping are examples of group-invariance tests. These tests test invariance of the null distribution under a set of transformations that has a group structure, in the algebraic sense. Such
Externí odkaz:
http://arxiv.org/abs/2202.00967
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Autor:
Koning, Nick W.
In this paper, we analyze the effects of the strategic selection of an algebraic subgroup for use in the permutation- or group invariance-based Westfall \& Young maxT multiple testing method. We report the surprising observation that a tiny subgroup
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=arXiv_______::394be29b859587e6e0d924c7db1584db
http://arxiv.org/abs/2307.12832
http://arxiv.org/abs/2307.12832