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Assessing sensitivity to unmeasured confounding is an important step in observational studies, which typically estimate effects under the assumption that all confounders are measured. In this paper, we develop a sensitivity analysis…

统计方法学 · 统计学 2023-09-04 Dan Soriano , Eli Ben-Michael , Peter J. Bickel , Avi Feller , Samuel D. Pimentel

We present a new experimental design procedure that divides a set of experimental units into two groups so that the two groups are balanced on a prespecified set of covariates and being almost as random as complete randomization. Under…

统计理论 · 数学 2016-12-08 Abba M. Krieger , David Azriel , Adam Kapelner

We consider basic problems of non-preemptive scheduling on uniformly related machines. For a given schedule, defined by a partition of the jobs into m subsets corresponding to the m machines, C_i denotes the completion time of machine i.…

数据结构与算法 · 计算机科学 2015-03-20 Leah Epstein , Asaf Levin

We propose a restricted win probability estimand for comparing treatments in a randomized trial with a time-to-event outcome. We also propose Bayesian estimators for this summary measure as well as the unrestricted win probability. Bayesian…

统计方法学 · 统计学 2024-11-06 Michelle Leeberg , Xianghua Luo , Thomas A. Murray

In observational causal inference, in order to emulate a randomized experiment, weights are used to render treatments independent of observed covariates. This property is known as balance; in its absence, estimated causal effects may be…

统计方法学 · 统计学 2020-07-16 David Arbour , Drew Dimmery , Arjun Sondhi

Covariate balance is a conventional key diagnostic for methods used estimating causal effects from observational studies. Recently, there is an emerging interest in directly incorporating covariate balance in the estimation. We study a…

统计方法学 · 统计学 2017-02-14 Qingyuan Zhao , Daniel Percival

Boltzmann samplers and the recursive method are prominent algorithmic frameworks for the approximate-size and exact-size random generation of large combinatorial structures, such as maps, tilings, RNA sequences or various tree-like…

组合数学 · 数学 2017-10-31 Maciej Bendkowski , Olivier Bodini , Sergey Dovgal

The determination of the sample size required by a crossover trial typically depends on the specification of one or more variance components. Uncertainty about the value of these parameters at the design stage means that there is often a…

统计方法学 · 统计学 2018-03-28 Michael Grayling , Adrian Mander , James Wason

Problems with solutions represented by permutations are very prominent in combinatorial optimization. Thus, in recent decades, a number of evolutionary algorithms have been proposed to solve them, and among them, those based on probability…

神经与进化计算 · 计算机科学 2023-04-06 Valentino Santucci , Josu Ceberio

We consider the problem of \emph{pruning} a classification tree, that is, selecting a suitable subtree that balances bias and variance, in common situations with inhomogeneous training data. Namely, assuming access to mostly data from a…

机器学习 · 统计学 2023-06-23 Nicholas Galbraith , Samory Kpotufe

Semi-supervised learning provides an effective paradigm for leveraging unlabeled data to improve a model's performance. Among the many strategies proposed, graph-based methods have shown excellent properties, in particular since they allow…

机器学习 · 统计学 2021-03-29 Mourad El Hamri , Younès Bennani

Researchers have widely used accelerated life tests to determine an optimal inspection plan for lot acceptance. All such plans are proposed by assuming a known relationship between the lifetime characteristic(s) and the accelerating stress…

统计计算 · 统计学 2026-02-06 Sandip Barui , Shovan Chowdhury

In observational studies, weighting methods that directly optimize the balance between treatment and covariates have received much attention lately; however these have mainly focused on binary treatments. Inspired by domain adaptation, we…

统计理论 · 数学 2020-02-27 Guillaume Martinet

This study designs an adaptive experiment for efficiently estimating average treatment effects (ATEs). In each round of our adaptive experiment, an experimenter sequentially samples an experimental unit, assigns a treatment, and observes…

统计方法学 · 统计学 2024-06-21 Masahiro Kato , Akihiro Oga , Wataru Komatsubara , Ryo Inokuchi

In causal inference confounding may be controlled either through regression adjustment in an outcome model, or through propensity score adjustment or inverse probability of treatment weighting, or both. The latter approaches, which are…

统计方法学 · 统计学 2017-01-17 Olli Saarela , Léo R. Belzile , David A. Stephens

We consider multi-label classification where the goal is to annotate each data point with the most relevant $\textit{subset}$ of labels from an extremely large label set. Efficient annotation can be achieved with balanced tree predictors,…

机器学习 · 计算机科学 2020-06-11 Maryam Majzoubi , Anna Choromanska

Researchers often use linear regression to analyse randomized experiments to improve treatment effect estimation by adjusting for imbalances of covariates in the treatment and control groups. Our work offers a randomization-based inference…

统计理论 · 数学 2022-07-08 Hanzhong Liu , Yuehan Yang

Probability estimation of tree topologies is one of the fundamental tasks in phylogenetic inference. The recently proposed subsplit Bayesian networks (SBNs) provide a powerful probabilistic graphical model for tree topology probability…

种群与进化 · 定量生物学 2024-09-10 Tianyu Xie , Musu Yuan , Minghua Deng , Cheng Zhang

We propose a novel multi-task neural network approach for estimating distributional treatment effects (DTE) in randomized experiments. While DTE provides more granular insights into the experiment outcomes over conventional methods focusing…

机器学习 · 计算机科学 2025-07-11 Tomu Hirata , Undral Byambadalai , Tatsushi Oka , Shota Yasui , Shingo Uto

The inclusion of the propensity score as a covariate in Bayesian regression trees for causal inference can reduce the bias in treatment effect estimations, which occurs due to the regularization-induced confounding phenomenon. This study…

统计方法学 · 统计学 2018-08-30 Pedro Henrique Filipini dos Santos , Hedibert Freitas Lopes