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The use of low-rank approximation filters in the field of NMR is increasing due to their flexibility and effectiveness. Despite their ability to reduce the Mean Square Error between the processed signal and the true signal is well known,…

数据分析、统计与概率 · 物理学 2023-10-05 R. Francischello , M. F. Santarelli , A. Flori , L. Menichetti , M. Geppi

This paper studies large $N$ and large $T$ conditional quantile panel data models with interactive fixed effects. We propose a nuclear norm penalized estimator of the coefficients on the covariates and the low-rank matrix formed by the…

计量经济学 · 经济学 2021-03-17 Junlong Feng

This paper establishes bounds on the predictive performance of empirical risk minimization for principal component regression. Our analysis is nonparametric, in the sense that the relation between the prediction target and the predictors is…

计量经济学 · 经济学 2024-09-18 Christian Brownlees , Guðmundur Stefán Guðmundsson , Yaping Wang

The response envelope model provides substantial efficiency gains over the standard multivariate linear regression by identifying the material part of the response to the model and by excluding the immaterial part. In this paper, we propose…

统计方法学 · 统计学 2024-07-02 Oh-Ran Kwon , Hui Zou

Precision and Recall are fundamental metrics in machine learning tasks where both accurate predictions and comprehensive coverage are essential, such as in multi-label learning, language generation, medical studies, and recommender systems.…

机器学习 · 计算机科学 2025-10-27 Lee Cohen , Yishay Mansour , Shay Moran , Han Shao

Ordering the expected outcomes across a collection of clusters after performing a covariate adjustment commonly arises in many applied settings, such as healthcare provider evaluation. Regression parameters in such covariate adjustment…

统计方法学 · 统计学 2025-11-21 Nicholas C. Henderson , Nicholas Hartman

Uncertainty quantification is vital for decision-making and risk assessment in machine learning. Mean-variance regression models, which predict both a mean and residual noise for each data point, provide a simple approach to uncertainty…

机器学习 · 统计学 2025-12-01 Eliot Wong-Toi , Alex Boyd , Vincent Fortuin , Stephan Mandt

The presence of outlying observations may adversely affect statistical testing procedures that result in unstable test statistics and unreliable inferences depending on the distortion in parameter estimates. In spite of the fact that the…

统计方法学 · 统计学 2021-04-19 Beste Hamiye Beyaztas , Soutir Bandyopadhyay , Abhijit Mandal

With the violation of the assumption of homoskedasticity, least squares estimators of the variance become inefficient and statistical inference conducted with invalid standard errors leads to misleading rejection rates. Despite a vast…

计量经济学 · 经济学 2024-01-01 Annalivia Polselli

Estimation of a vector from quantized linear measurements is a common problem for which simple linear techniques are suboptimal -- sometimes greatly so. This paper develops generalized approximate message passing (GAMP) algorithms for…

信息论 · 计算机科学 2015-03-24 Ulugbek Kamilov , Vivek K. Goyal , Sundeep Rangan

We consider the problem of reconstructing the signal and the hidden variables from observations coming from a multi-layer network with rotationally invariant weight matrices. The multi-layer structure models inference from deep generative…

机器学习 · 统计学 2022-12-06 Yizhou Xu , TianQi Hou , ShanSuo Liang , Marco Mondelli

Medical studies that depend on electronic health records (EHR) data are often subject to measurement error, as the data are not collected to support research questions under study. These data errors, if not accounted for in study analyses,…

统计方法学 · 统计学 2020-03-10 Eric J. Oh , Bryan E. Shepherd , Thomas Lumley , Pamela A. Shaw

Asymmetry along with heteroscedasticity or contamination often occurs with the growth of data dimensionality. In ultra-high dimensional data analysis, such irregular settings are usually overlooked for both theoretical and computational…

统计理论 · 数学 2022-07-20 Bin Luo , Xiaoli Gao

This paper characterizes the impact of covariate serial dependence on the non-asymptotic estimation error bound of penalized regressions (PRs). Focusing on the direct relationship between the degree of cross-correlation between covariates…

统计理论 · 数学 2023-02-14 Simone Tonini , Francesca Chiaromonte , Alessandro Giovannelli

Recent work has questioned the reliability of graph learning benchmarks, citing concerns around task design, methodological rigor, and data suitability. In this extended abstract, we contribute to this discussion by focusing on evaluation…

机器学习 · 计算机科学 2025-06-17 Filip Cornell , Oleg Smirnov , Gabriela Zarzar Gandler , Lele Cao

Heuristic tools from statistical physics have been used in the past to locate the phase transitions and compute the optimal learning and generalization errors in the teacher-student scenario in multi-layer neural networks. In this…

机器学习 · 计算机科学 2024-03-01 Benjamin Aubin , Antoine Maillard , Jean Barbier , Florent Krzakala , Nicolas Macris , Lenka Zdeborová

In most practical applications such as recommendation systems, display advertising, and so forth, the collected data often contains missing values and those missing values are generally missing-not-at-random, which deteriorates the…

机器学习 · 计算机科学 2024-05-27 Mingming Ha , Xuewen Tao , Wenfang Lin , Qionxu Ma , Wujiang Xu , Linxun Chen

Randomized smoothing has shown promising certified robustness against adversaries in classification tasks. Despite such success with only zeroth-order access to base models, randomized smoothing has not been extended to a general form of…

机器学习 · 计算机科学 2024-05-16 Aref Miri Rekavandi , Olga Ohrimenko , Benjamin I. P. Rubinstein

High throughput sequencing techniques have highly impactedon modern biology, widening the gap between sequenced andannotated data. Automatic annotation tools are thereforeof the foremost importance to guide biologists' experiments. However,…

机器学习 · 统计学 2016-10-02 Luca Masera

This manuscript presents an approach to perform generalized linear regression with multiple high dimensional covariance matrices as the outcome. Model parameters are proposed to be estimated by maximizing a pseudo-likelihood. When the data…

统计方法学 · 统计学 2020-07-28 Yi Zhao , Brian S. Caffo , Xi Luo