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We introduce a new multiple type I error criterion for clinical trials with multiple populations. Such trials are of interest in precision medicine where the goal is to develop treatments that are targeted to specific sub-populations…

统计方法学 · 统计学 2021-02-05 Werner Brannath , Charlie Hillner , Kornelius Rohmeyer

Nonlinear longitudinal proportional effect models have been proposed to improve power and provide direct estimates of the proportional treatment effect in randomized clinical trials. These models assume a fixed proportional treatment effect…

统计方法学 · 统计学 2026-01-23 Michael C. Donohue , Philip S. Insel , Oliver Langford

We explore the challenges posed by the violation of Bell-like inequalities by $d$-dimensional systems exposed to imperfect state-preparation and measurement settings. We address, in particular, the limit of high-dimensional systems,…

p-hacking occurs when researchers conduct multiple significance tests (e.g., p1;H0,1 and p2;H0,2) and then selectively report tests that yield desirable (usually significant) results (e.g., p2 < 0.05;H0,2) without correcting for multiple…

其他统计学 · 统计学 2026-05-22 Mark Rubin

By employing various empirical estimators for the Mutual Information (MI) measure, we calculate and compare the estimates and their confidence intervals for both normal and non-normal bivariate data samples. We find that certain nonlinear…

信息论 · 计算机科学 2024-10-10 Theo Grigorenko , Leo Grigorenko

While the design of blind image quality assessment (IQA) algorithms has improved significantly, the distribution shift between the training and testing scenarios often leads to a poor performance of these methods at inference time. This…

计算机视觉与模式识别 · 计算机科学 2023-09-27 Subhadeep Roy , Shankhanil Mitra , Soma Biswas , Rajiv Soundararajan

We derive the sample size formulae for comparing two negative binomial rates based on both the relative and absolute rate difference metrics in noninferiority and equivalence trials with unequal follow-up times, and establish an approximate…

统计方法学 · 统计学 2017-05-24 Yongqiang Tang

Data contamination -- the accidental consumption of evaluation examples within the pre-training data -- can undermine the validity of evaluation benchmarks. In this paper, we present a rigorous analysis of the effects of contamination on…

计算与语言 · 计算机科学 2025-02-03 Muhammed Yusuf Kocyigit , Eleftheria Briakou , Daniel Deutsch , Jiaming Luo , Colin Cherry , Markus Freitag

Machine learning methods are increasingly applied in medical imaging, yet many reported improvements lack statistical robustness: recent works have highlighted that small but significant performance gains are highly likely to be false…

机器学习 · 计算机科学 2025-11-05 Thomas Sanchez , Pedro M. Gordaliza , Meritxell Bach Cuadra

This note uses a simple example to show how moment inequality models used in the empirical economics literature lead to general minimax relative efficiency comparisons. The main point is that such models involve inference on a low…

应用统计 · 统计学 2014-12-19 Timothy B. Armstrong

Bell inequalities applicable to non-ideal EPRB experiments are critical to the interpretation of experimental Bell tests. In this article it is shown that previous treatments of this subject are incorrect due to an implicit assumption and…

量子物理 · 物理学 2015-05-12 João N. C. Especial

Inference in models where the parameter is defined by moment inequalities is of interest in many areas of economics. This paper develops a new method for improving the performance of generalized moment selection (GMS) testing procedures in…

计量经济学 · 经济学 2020-08-26 Rami V. Tabri , Christopher D. Walker

Entanglement witnesses such as Bell inequalities are frequently used to prove the non-classicality of a light source and its suitability for further tasks. By demonstrating Bell inequality violations using classical light in common…

In research on eye movements in reading, it is common to analyze a number of canonical dependent measures to study how the effects of a manipulation unfold over time. Although this gives rise to the well-known multiple comparisons problem,…

应用统计 · 统计学 2016-10-11 Titus von der Malsburg , Bernhard Angele

Simultaneous tests of superiority and non-inferiority hypotheses on multiple endpoints are often performed in clinical trials to demonstrate that a new treatment is superior over a control on at least one endpoint and non-inferior on the…

统计方法学 · 统计学 2023-10-02 Wenfeng Chen , Naiqing Zhao , Guoyou Qin , Jie Chen

This work revisits optimal response-adaptive designs from a type-I error rate perspective, highlighting when and how much these allocations exacerbate type-I error rate inflation - an issue previously undocumented. We explore a range of…

统计方法学 · 统计学 2025-09-09 Lukas Pin , Sofía S. Villar , William F. Rosenberger

There is growing interest in Bayesian clinical trial designs with informative prior distributions, e.g. for extrapolation of adult data to pediatrics, or use of external controls. While the classical type I error is commonly used to…

统计方法学 · 统计学 2023-09-06 Nicky Best , Maxine Ajimi , Beat Neuenschwander , Gaelle Saint-Hilary , Simon Wandel

Hybrid clinical trials, that borrow real-world data (RWD), are gaining interest, especially for rare diseases. They assume RWD and randomized control arm be exchangeable, but violations can bias results, inflate type I error, or reduce…

In the era of Model-as-a-Service, organizations increasingly rely on third-party AI models for rapid deployment. However, the dynamic nature of emerging AI applications, the continual introduction of new datasets, and the growing number of…

机器学习 · 计算机科学 2026-02-10 Zihan Zhu , Yanqiu Wu , Qiongkai Xu

In systematic reviews and meta-analysis, researchers often pool the results of the sample mean and standard deviation from a set of similar clinical trials. A number of the trials, however, reported the study using the median, the minimum…

统计方法学 · 统计学 2016-10-06 Xiang Wan , Wenqian Wang , Jiming Liu , Tiejun Tong