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In statistics and machine learning, logistic regression is a widely-used supervised learning technique primarily employed for binary classification tasks. When the number of observations greatly exceeds the number of predictor variables, we…

机器学习 · 统计学 2024-04-02 Agniva Chowdhury , Pradeep Ramuhalli

We propose efficient nonparametric statistics to compare medical imaging modalities in multi-reader multi-test data and to compare markers in longitudinal ROC data. The proposed methods are based on the weighted area under the ROC curve…

应用统计 · 统计学 2012-06-11 Liansheng Larry Tang , Aiyi Liu , Zhen Chen , Enrique F. Schisterman , Bo Zhang , Zhuang Miao

In this article, we describe a {\tt R} package for sampling from an empirical likelihood-based posterior using a Hamiltonian Monte Carlo method. Empirical likelihood-based methodologies have been used in Bayesian modeling of many problems…

其他统计学 · 统计学 2022-09-07 Dang Trung Kien , Neo Han Wei , Sanjay Chaudhuri

This paper, which is Part 1 of a two-part paper series, considers a simulation-based inference with learned summary statistics, in which such a learned summary statistic serves as an empirical-likelihood with ameliorative effects in the…

机器学习 · 统计学 2026-02-02 Getachew K. Befekadu

Likelihood methods for measuring statistical evidence obey the likelihood principle while maintaining bounded and well-controlled frequency properties. These methods lend themselves to sequential study designs because they measure the…

统计方法学 · 统计学 2017-11-07 Jeffrey D Blume , Leena Choi

We study an optimal threshold functional arising in binary classification for continuous biomarkers. While the ROC curve summarizes discriminatory performance across all thresholds, practical threshold selection must also account for…

统计方法学 · 统计学 2026-05-11 Renato de Paula , Helena Mouriño , Tiago Dias Domingues

Subsampling is a computationally efficient and scalable method to draw inference in large data settings based on a subset of the data rather than needing to consider the whole dataset. When employing subsampling techniques, a crucial…

统计方法学 · 统计学 2025-10-08 Amalan Mahendran , Helen Thompson , James M. McGree

Statistical analysis is an important tool to distinguish systematic from chance findings. Current statistical analyses rely on distributional assumptions reflecting the structure of some underlying model, which if not met lead to problems…

统计理论 · 数学 2023-11-15 Orestis Loukas , Ho Ryun Chung

Formulating accurate and robust classification strategies is a key challenge of developing diagnostic and antibody tests. Methods that do not explicitly account for disease prevalence and uncertainty therein can lead to significant…

统计方法学 · 统计学 2022-02-01 Paul N. Patrone , Anthony J. Kearsley

Large-scale randomized experiments, sometimes called A/B tests, are increasingly prevalent in many industries. Though such experiments are often analyzed via frequentist $t$-tests, arguably such analyses are deficient: $p$-values are hard…

统计方法学 · 统计学 2020-03-27 F. Richard Guo , James McQueen , Thomas S. Richardson

Approximate Bayesian Computation (ABC) methods rely on asymptotic arguments, implying that parameter inference can be systematically biased even when sufficient statistics are available. We propose to construct the ABC accept/reject step…

统计方法学 · 统计学 2014-01-24 Oliver Ratmann , Anton Camacho , Adam Meijer , Gé Donker

Information integration plays a pivotal role in biomedical studies by facilitating the combination and analysis of independent datasets from multiple studies, thereby uncovering valuable insights that might otherwise remain obscured due to…

统计方法学 · 统计学 2024-07-02 Chixiang Chen , Jia Liang , Elynn Chen , Ming Wang

Log-symmetric regression models are particularly useful when the response variable is continuous, strictly positive and asymmetric. In this paper, we proposed a class of log-symmetric regression models in the context of correlated errors.…

统计方法学 · 统计学 2018-10-22 Helton Saulo , Roberto Vila

Mendelian randomization (MR) is widely used to uncover causal relationships in the presence of unmeasured confounders. However, most existing MR methods presuppose linear causality, risking bias when the true relationships are nonlinear,…

统计方法学 · 统计学 2025-08-05 Xinpei Wang , Tao Huang , Jinzhu Jia

A non parametric method based on the empirical likelihood is proposed for detecting the change in the coefficients of high-dimensional linear model where the number of model variables may increase as the sample size increases. This amounts…

统计理论 · 数学 2015-06-22 Gabriela Ciuperca , Zahraa Salloum

This article considers the receiver operating characteristic (ROC) curve analysis for medical data with non-ignorable missingness in the disease status. In the framework of the logistic regression models for both the disease status and the…

统计方法学 · 统计学 2024-11-27 Dingding Hu , Tao Yu , Pengfei Li

Causal discovery can be a powerful tool for investigating causality when a system can be observed but is inaccessible to experiments in practice. Despite this, it is rarely used in any scientific or medical fields. One of the major hurdles…

机器学习 · 统计学 2019-10-07 Erich Kummerfeld , Alexander Rix

Neural abstractive summarization models are able to generate summaries which have high overlap with human references. However, existing models are not optimized for factual correctness, a critical metric in real-world applications. In this…

计算与语言 · 计算机科学 2020-04-29 Yuhao Zhang , Derek Merck , Emily Bao Tsai , Christopher D. Manning , Curtis P. Langlotz

We propose a general framework to design posterior sampling methods for model-based RL. We show that the proposed algorithms can be analyzed by reducing regret to Hellinger distance in conditional probability estimation. We further show…

机器学习 · 计算机科学 2022-10-18 Alekh Agarwal , Tong Zhang

Empirical Bayes methods offer valuable tools for a large class of compound decision problems. In this tutorial we describe some basic principles of the empirical Bayes paradigm stressing their frequentist interpretation. Emphasis is placed…

统计方法学 · 统计学 2024-04-05 Roger Koenker , Jiaying Gu