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FDA's Project Optimus initiative for oncology drug development emphasizes selecting a dose that optimizes both efficacy and safety. When an inferentially adaptive Phase 2/3 design with dose selection is implemented to comply with the…

应用统计 · 统计学 2024-12-12 Cong Chen , Mo Huang , Xuekui Zhang

Semi-parametric methods are often used for the estimation of intervention effects on correlated outcomes in cluster-randomized trials (CRTs). When outcomes are missing at random (MAR), Inverse Probability Weighted (IPW) methods…

统计方法学 · 统计学 2016-01-27 Melanie Prague , Rui Wang , Alisa Stephens , Eric Tchetgen Tchetgen , Victor DeGruttola

We develop a framework for goal-oriented optimal design of experiments (GOODE) for large-scale Bayesian linear inverse problems governed by PDEs. This framework differs from classical Bayesian optimal design of experiments (ODE) in the…

计算工程、金融与科学 · 计算机科学 2018-08-15 Ahmed Attia , Alen Alexanderian , Arvind K. Saibaba

The (modern) arbitrary derivative (ADER) approach is a popular technique for the numerical solution of differential problems based on iteratively solving an implicit discretization of their weak formulation. In this work, focusing on an ODE…

数值分析 · 数学 2024-01-15 Maria Han Veiga , Lorenzo Micalizzi , Davide Torlo

Ordinal regression with anchored reference samples (ORARS) has been proposed for predicting the subjective Mean Opinion Score (MOS) of input stimuli automatically. The ORARS addresses the MOS prediction problem by pairing a test sample with…

机器学习 · 计算机科学 2022-07-07 Bin Su , Shaoguang Mao , Frank Soong , Zhiyong Wu

In many decision-making problems, the primary outcome is expensive, time-consuming, or difficult to observe, so individualized treatment rules (ITRs) may be instead learned from surrogate endpoints. However, a surrogate that is highly…

统计方法学 · 统计学 2026-04-13 Zeyu Xu , Xiaojie Mao , Hao Mei , Yue Liu

We consider the utilization of a computational model to guide the optimal acquisition of experimental data to inform the stochastic description of model input parameters. Our formulation is based on the recently developed consistent…

统计计算 · 统计学 2021-05-04 Scott N. Walsh , Tim M. Wildey , John D. Jakeman

In consequential domains, it is often impossible to compel individuals to take treatment, so that optimal policy rules are merely suggestions in the presence of human non-adherence to treatment recommendations. We study personalized…

机器学习 · 计算机科学 2026-04-24 Angela Zhou

This paper presents an advancement to an approach for model-independent surrogate-based optimization with adaptive batch sampling, known as Adaptive Model Refinement (AMR). While the original AMR method provides unique decisions with…

最优化与控制 · 数学 2019-06-04 Payam Ghassemi , Sumeet Sanjay Lulekar , Souma Chowdhury

An individualized decision rule (IDR) is a decision function that assigns each individual a given treatment based on his/her observed characteristics. Most of the existing works in the literature consider settings with binary or finitely…

统计方法学 · 统计学 2023-01-31 Hengrui Cai , Chengchun Shi , Rui Song , Wenbin Lu

In randomized clinical trials, adjusting for baseline covariates can improve credibility and efficiency for demonstrating and quantifying treatment effects. This article studies the augmented inverse propensity weighted (AIPW) estimator,…

统计方法学 · 统计学 2024-03-27 Marlena S. Bannick , Jun Shao , Jingyi Liu , Yu Du , Yanyao Yi , Ting Ye

Outcome Reporting Bias (ORB) poses significant threats to the validity of meta-analytic findings. It occurs when researchers selectively report outcomes based on the significance or direction of results, potentially leading to distorted…

统计方法学 · 统计学 2025-07-17 Alessandra Gaia Saracini , Leonhard Held

Item Response Theory (IRT) is a well known method for assessing responses from humans in education and psychology. In education, IRT is used to infer student abilities and characteristics of test items from student responses. Interactions…

人工智能 · 计算机科学 2023-07-20 Antti Keurulainen , Isak Westerlund , Oskar Keurulainen , Andrew Howes

Modern statistical analysis often encounters high-dimensional problems but with a limited sample size. It poses great challenges to traditional statistical estimation methods. In this work, we adopt auxiliary learning to solve the…

统计理论 · 数学 2025-01-08 Hanchao Yan , Feifei Wang , Chuanxin Xia , Hansheng Wang

When sample data are governed by an unknown sequence of independent but possibly non-identical distributions, the data-generating process (DGP) in general cannot be perfectly identified from the data. For making decisions facing such…

理论经济学 · 经济学 2022-05-11 Xiaoyu Cheng

Response-Adaptive Randomization (RAR) is part of a wider class of data-dependent sampling algorithms, for which clinical trials are typically used as a motivating application. In that context, patient allocation to treatments is determined…

统计方法学 · 统计学 2022-06-09 David S. Robertson , Kim May Lee , Boryana C. Lopez-Kolkovska , Sofia S. Villar

When an optimal treatment regime (OTR) is considered, we need to evaluate the OTR in a valid and efficient way. The classical inference applied to the mean outcome under OTR, assuming the OTR is the same as the estimated OTR, might be…

统计方法学 · 统计学 2026-04-21 Shuoxun Xu , Xinzhou Guo

Modern cell-perturbation experiments expose cells to panels of hundreds of stimuli, such as cytokines or CRISPR guides that perform gene knockouts. These experiments are designed to investigate whether a particular gene is upregulated or…

应用统计 · 统计学 2023-07-24 Jackson Loper , Noam Solomon , Jeffrey Regier

This paper constructs a doubly robust estimator for continuous dose-response estimation. An outcome regression model is augmented with a set of inverse generalized propensity score covariates to correct for potential misspecification bias.…

统计理论 · 数学 2015-06-17 Daniel J. Graham , Emma J. McCoy , David A. Stephens

Offline reinforcement learning (RL) faces a critical challenge of overestimating the value of out-of-distribution (OOD) actions. Existing methods mitigate this issue by penalizing unseen samples, yet they fail to accurately identify OOD…

机器学习 · 计算机科学 2026-05-12 Qingjun Wang , Hongtu Zhou , Hang Yu , Junqiao Zhao , Yanping Zhao , Chen Ye , Ziqiao Wang , Guang Chen