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Deep neural network (DNN) regression models are widely used in applications requiring state-of-the-art predictive accuracy. However, until recently there has been little work on accurate uncertainty quantification for predictions from such…

统计方法学 · 统计学 2020-09-07 Nadja Klein , David J. Nott , Michael Stanley Smith

We develop an R package SPQR that implements the semi-parametric quantile regression (SPQR) method in Xu and Reich (2021). The method begins by fitting a flexible density regression model using monotonic splines whose weights are modeled as…

统计方法学 · 统计学 2022-10-27 Steven G. Xu , Reetam Majumder , Brian J. Reich

Streamlined weirs which are a nature-inspired type of weir have gained tremendous attention among hydraulic engineers, mainly owing to their established performance with high discharge coefficients. Computational fluid dynamics (CFD) is…

机器学习 · 计算机科学 2022-04-13 Weibin Chen , Danial Sharifrazi , Guoxi Liang , Shahab S. Band , Kwok Wing Chau , Amir Mosavi

Despite the major progress of deep models as learning machines, uncertainty estimation remains a major challenge. Existing solutions rely on modified loss functions or architectural changes. We propose to compensate for the lack of built-in…

机器学习 · 计算机科学 2023-02-27 Nataša Tagasovska , Firat Ozdemir , Axel Brando

We show that the estimating equations for quantile regression can be solved using a simple EM algorithm in which the M-step is computed via weighted least squares, with weights computed at the E-step as the expectation of independent…

统计方法学 · 统计学 2021-06-29 Haim Y. Bar , James G. Booth , Martin T. Wells

This paper proposes dynamic Bayesian regression quantile synthesis (DRQS), a novel method for quantile forecasting within the Bayesian predictive synthesis (BPS) framework designed to combine quantile-specific information from multiple…

统计方法学 · 统计学 2026-03-13 Genya Kobayashi , Shonosuke Sugasawa , Yuta Yamauchi , Dongu Han

Quantile regression is a powerful tool capable of offering a richer view of the data as compared to least-squares regression. Quantile regression is typically performed individually on a few quantiles or a grid of quantiles without…

统计方法学 · 统计学 2026-03-26 Ta-Hsin Li , Nimrod Megiddo

Regression models that incorporate smooth functions of predictor variables to explain the relationships with a response variable have gained widespread usage and proved successful in various applications. By incorporating smooth functions…

统计计算 · 统计学 2024-03-19 Natalya Pya Arnqvist

Long-run covariance matrix estimation is the building block of time series inference. The corresponding difference-based estimator, which avoids detrending, has attracted considerable interest due to its robustness to both smooth and abrupt…

统计方法学 · 统计学 2024-02-29 Lujia Bai , Weichi Wu

This study extends the Bayesian nonparametric instrumental variable regression model to determine the structural effects of covariates on the conditional quantile of the response variable. The error distribution is nonparametrically…

统计方法学 · 统计学 2016-08-30 Genya Kobayashi , Kota Ogasawara

A new realized conditional autoregressive Value-at-Risk (VaR) framework is proposed, through incorporating a measurement equation into the original quantile regression model. The framework is further extended by employing various Expected…

风险管理 · 定量金融 2021-01-18 Chao Wang , Richard Gerlach , Qian Chen

Quantile regression is a fundamental problem in statistical learning motivated by a need to quantify uncertainty in predictions, or to model a diverse population without being overly reductive. For instance, epidemiological forecasts, cost…

机器学习 · 统计学 2023-04-18 Rasool Fakoor , Taesup Kim , Jonas Mueller , Alexander J. Smola , Ryan J. Tibshirani

While inference-time scaling has significantly enhanced generative quality in large language and diffusion models, its application to vector-quantized (VQ) visual autoregressive modeling (VAR) remains unexplored. We introduce VAR-Scaling,…

计算机视觉与模式识别 · 计算机科学 2026-01-13 Weidong Tang , Xinyan Wan , Siyu Li , Xiumei Wang

Time series models aim for accurate predictions of the future given the past, where the forecasts are used for important downstream tasks like business decision making. In practice, deep learning based time series models come in many forms,…

机器学习 · 计算机科学 2022-06-01 Kashif Rasul , Young-Jin Park , Max Nihlén Ramström , Kyung-Min Kim

The paper considers simultaneous nonparametric inference for a wide class of M-regression models with time-varying coefficients. The covariates and errors of the regression model are tackled as a general class of nonstationary time series…

统计方法学 · 统计学 2024-09-10 Miaoshiqi Liu , Zhou Zhou

A model-free measure of Granger causality in expectiles is proposed, generalizing the traditional mean-based measure to arbitrary positions of the conditional distribution. Expectiles are the only law-invariant risk measures that are both…

计量经济学 · 经济学 2026-03-25 Roberto Fuentes-Martínez , Irene Crimaldi

In this paper, we propose an invariant quantile regression (IQR) framework specifically designed for multi-environment datasets, which captures the invariance across different environments. This framework is closely related to transfer…

统计方法学 · 统计学 2026-05-28 Bo Fu , Dandan Jiang

Kernel quantile regression (KQR) extends classical quantile regression to nonlinear settings using kernel methods, offering a powerful tool for modeling conditional distributions. However, its application to large-scale datasets remains…

最优化与控制 · 数学 2026-04-24 Shengxiang Deng , Xudong Li , Yangjing Zhang

The estimation of conditional quantiles at extreme tails is of great interest in numerous applications. Various methods that integrate regression analysis with an extrapolation strategy derived from extreme value theory have been proposed…

统计方法学 · 统计学 2024-11-22 Yiwei Tang , Judy Huixia Wang , Deyuan Li

Quantile regression is a powerful tool for detecting exposure-outcome associations given covariates across different parts of the outcome's distribution, but has two major limitations when the aim is to infer the effect of an exposure.…