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1. Animal movement patterns contribute to our understanding of variation in breeding success and survival of individuals, and the implications for population dynamics. 2. Over time, sensor technology for measuring movement patterns has…

定量方法 · 定量生物学 2018-01-11 Leah R. Johnson , Philipp H. Boersch-Supan , Richard A. Phillips , Sadie J. Ryan

Quantile regression is a method to estimate the quantiles of the conditional distribution of a response variable, and as such it permits a much more accurate portrayal of the relationship between the response variable and observed…

数据结构与算法 · 计算机科学 2014-01-08 Jiyan Yang , Xiangrui Meng , Michael W. Mahoney

A two-stage approach is proposed to overcome the problem in quantile regression, where separately fitted curves for several quantiles may cross. The standard Bayesian quantile regression model is applied in the first stage, followed by a…

统计方法学 · 统计学 2015-02-05 Thais Rodrigues , Yanan Fan

As a competitive alternative to least squares regression, quantile regression is popular in analyzing heterogenous data. For quantile regression model specified for one single quantile level $\tau$, major difficulties of semiparametric…

统计方法学 · 统计学 2017-05-29 Kani Chen , Yuanyuan Lin , Zhanfeng Wang , Zhiliang Ying

When multiple agents learn in a decentralized manner, the environment appears non-stationary from the perspective of an individual agent due to the exploration and learning of the other agents. Recently proposed deep multi-agent…

机器学习 · 计算机科学 2020-06-16 Xueguang Lyu , Christopher Amato

We develop quantile regression models in order to derive risk margin and to evaluate capital in non-life insurance applications. By utilizing the entire range of conditional quantile functions, especially higher quantile levels, we detail…

风险管理 · 定量金融 2014-02-12 Alice X. D. Dong , Jennifer S. K. Chan , Gareth W. Peters

Using an asymmetric Laplace distribution, which provides a mechanism for Bayesian inference of quantile regression models, we develop a fully Bayesian approach to fitting single-index models in conditional quantile regression. In this work,…

统计计算 · 统计学 2015-03-19 Yuao Hua , Robert B. Gramacy , Heng Lian

Data integration has become increasingly popular owing to the availability of multiple data sources. This study considered quantile regression estimation when a key covariate had multiple proxies across several datasets. In a unified…

统计方法学 · 统计学 2022-10-25 Dongyoung Go , Jongho Im , Ick Hoon Jin

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

We propose a nonparametric quantile regression method using deep neural networks with a rectified linear unit penalty function to avoid quantile crossing. This penalty function is computationally feasible for enforcing non-crossing…

机器学习 · 统计学 2022-10-20 Wenlu Tang , Guohao Shen , Yuanyuan Lin , Jian Huang

The paper considers nonparametric specification tests of quantile curves for a general class of nonstationary processes. Using Bahadur representation and Gaussian approximation results for nonstationary time series, simultaneous confidence…

统计理论 · 数学 2010-10-20 Zhou Zhou

Quantile regression is a powerful tool for inferring how covariates affect specific percentiles of the response distribution. Existing methods either estimate conditional quantiles separately for each quantile of interest or estimate the…

统计方法学 · 统计学 2024-11-19 Joseph Feldman , Daniel Kowal

This article introduces a novel nonparametric methodology for Generalized Linear Models which combines the strengths of the binary regression and latent variable formulations for categorical data, while overcoming their disadvantages.…

机器学习 · 统计学 2021-10-12 K. P. Chowdhury

Compositional data arise in many real-life applications and versatile methods for properly analyzing this type of data in the regression context are needed. When parametric assumptions do not hold or are difficult to verify, non-parametric…

统计方法学 · 统计学 2023-09-07 Michail Tsagris , Abdulaziz Alenazi , Connie Stewart

In spite of the recent surge of interest in quantile regression, joint estimation of linear quantile planes remains a great challenge in statistics and econometrics. We propose a novel parametrization that characterizes any collection of…

统计方法学 · 统计学 2015-07-14 Yun Yang , Surya Tokdar

We assess empirical models in climate econometrics using modern statistical learning techniques. Existing approaches are prone to outliers, ignore sample dependencies, and lack principled model selection. To address these issues, we…

应用统计 · 统计学 2025-05-26 Christof Schötz , Jan Hassel , Christian Otto

Quantiles are useful characteristics of random variables that can provide substantial information on distributions compared with commonly used summary statistics such as means. In this paper, we propose a Bayesian quantile trend filtering…

统计方法学 · 统计学 2023-10-23 Takahiro Onizuka , Shintaro Hashimoto , Shonosuke Sugasawa

In using multiple regression methods for prediction, one often considers the linear combination of explanatory variables as an index. Seeking a single such index when here are multiple responses is rather more complicated. One classical…

统计方法学 · 统计学 2020-11-19 Stephen Portnoy , Joseph Haimberg

Bird migration is an adaptive behavior ultimately aiming at optimizing survival and reproductive success. We propose an optimal switching model to study bird migration, where birds' migration behaviors can be efficiently modeled as…

最优化与控制 · 数学 2025-01-14 Jiawei Chu , King-Yeung Lam , Boyu Wang , Tong Wang

Variational methods are widely used for approximate posterior inference. However, their use is typically limited to families of distributions that enjoy particular conjugacy properties. To circumvent this limitation, we propose a family of…

机器学习 · 计算机科学 2012-06-22 Samuel Gershman , Matt Hoffman , David Blei