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Transportability provides a principled framework to address the problem of applying study results to new populations. Here, we consider the problem of selecting variables to include in transport estimators. We provide a brief overview of…

统计方法学 · 统计学 2019-12-11 Megha L. Mehrotra , M. Maria Glymour , Elvin Geng , Daniel Westreich , David V. Glidden

In high dimensional analysis, effects of explanatory variables on responses sometimes rely on certain exposure variables, such as time or environmental factors. In this paper, to characterize the importance of each predictor, we utilize its…

统计方法学 · 统计学 2018-04-11 Yeqing Zhou , Jingyuan Liu , Zhihui Hao , Liping Zhu

We develop flexible methods of deriving variational inference for models with complex latent variable structure. By splitting the variables in these models into "global" parameters and "local" latent variables, we define a class of…

统计计算 · 统计学 2019-04-23 Linda S. L. Tan , Aishwarya Bhaskaran , David J. Nott

In a standard regression problem, we have a set of explanatory variables whose effect on some response vector is modeled. For wide binary data, such as genetic marker data, we often have two limitations. First, we have more parameters than…

统计方法学 · 统计学 2021-09-20 Katharina Parry , Leo N. Geppert , Alexander Munteanu , Katja Ickstadt

The Contextuality-by-Default approach to determining and measuring the (non)contextuality of a system of random variables requires that every random variable in the system be represented by an equivalent set of dichotomous random variables.…

量子物理 · 物理学 2022-01-05 Janne V. Kujala , Ehtibar N. Dzhafarov

We propose a large structural VAR which is identified by higher moments without the need to impose economically motivated restrictions. The model scales well to higher dimensions, allowing the inclusion of a larger number of variables. We…

计量经济学 · 经济学 2024-12-24 Jan Prüser

It is known that the scan statistic with variable window size favors the detection of signals with small spatial extent and there is a corresponding loss of power for signals with large spatial extent. Recent results have shown that this…

统计方法学 · 统计学 2022-05-20 Guenther Walther

Causal phenomena associated with rare events occur across a wide range of engineering problems, such as risk-sensitive safety analysis, accident analysis and prevention, and extreme value theory. However, current methods for causal…

机器学习 · 统计学 2023-07-19 Chih-Yuan Chiu , Kshitij Kulkarni , Shankar Sastry

To properly estimate signal significance while accounting for both statistical and systematic uncertainties, we conducted a study to analyze the impact of typical systematic uncertainties, such as background shape, signal shape, and the…

数据分析、统计与概率 · 物理学 2023-12-19 Yi Ding , Weiming Song , Kai Zhu

In many cases, feature selection is often more complicated than identifying a single subset of input variables that would together explain the output. There may be interactions that depend on contextual information, i.e., variables that…

机器学习 · 统计学 2016-05-13 Antonio Sutera , Gilles Louppe , Vân Anh Huynh-Thu , Louis Wehenkel , Pierre Geurts

The inference of causal relationships using observational data from partially observed multivariate systems with hidden variables is a fundamental question in many scientific domains. Methods extracting causal information from conditional…

机器学习 · 统计学 2020-10-13 Daniel Chicharro , Michel Besserve , Stefano Panzeri

The experimental issue of the search for new particles of unknown mass poses the challenge of exploring a wide interval to look for the usual signatures represented by excess of events above the background. A side effect of such a broad…

数据分析、统计与概率 · 物理学 2009-11-11 Gioacchino Ranucci

We study the sum uncertainty relations based on variance and skew information for arbitrary finite N quantum mechanical observables. We derive new uncertainty inequalities which improve the exiting results about the related uncertainty…

量子物理 · 物理学 2021-11-18 Qing-Hua Zhang , Shao-Ming Fei

We introduce an optimization technique to discriminate signal and background in any phenomeno- logical study based on the cut and count-based method. The core ideas behind this technique are the introduction of a ranking scheme that can…

高能物理 - 唯象学 · 物理学 2026-05-19 Baradhwaj Coleppa , Gokul B. Krishna , Agnivo Sarkar , Sujay Shil

A good feature representation is a determinant factor to achieve high performance for many machine learning algorithms in terms of classification. This is especially true for techniques that do not build complex internal representations of…

神经与进化计算 · 计算机科学 2019-08-22 Noëlie Cherrier , Jean-Philippe Poli , Maxime Defurne , Franck Sabatié

Linguistic variables represent crisp information in a form and precision appropriate for the problem. For example, to answer the question "How are you?" one may say "I am fine." the linguistic variables like "fine", so common in everyday…

形式语言与自动机理论 · 计算机科学 2011-12-16 Supriya Raheja , Reena Dhadich , Smita Rajpal

Researchers are often interested in treatment effects on outcomes that are only defined conditional on a post-treatment event status. For example, in a study of the effect of different cancer treatments on quality of life at end of…

The typical central limit theorems in high-frequency asymptotics for semimartingales are results on stable convergence to a mixed normal limit with an unknown conditional variance. Estimating this conditional variance usually is a hard…

概率论 · 数学 2020-03-25 Mathias Vetter

We consider the high-dimensional discriminant analysis problem. For this problem, different methods have been proposed and justified by establishing exact convergence rates for the classification risk, as well as the l2 convergence results…

机器学习 · 统计学 2013-06-28 Mladen Kolar , Han Liu

We propose a method to distinguish causal influence from hidden confounding in the following scenario: given a target variable Y, potential causal drivers X, and a large number of background features, we propose a novel criterion for…

机器学习 · 统计学 2022-02-07 You-Lin Chen , Lenon Minorics , Dominik Janzing