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相关论文: A Bayesian Hurdle Quantile Regression Model for Ci…

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This paper addresses computational challenges in estimating Quantile Regression with Selection (QRS). The estimation of the parameters that model self-selection requires the estimation of the entire quantile process several times. Moreover,…

计量经济学 · 经济学 2024-02-27 Santiago Pereda-Fernández

Quantile crossing is a common phenomenon in shape constrained nonparametric quantile regression. A recent study by Wang et al. (2014) has proposed to address this problem by imposing non-crossing constraints to convex quantile regression.…

统计方法学 · 统计学 2025-10-09 Sheng Dai , Timo Kuosmanen , Xun Zhou

Bounded discrete proportions -- counts out of known totals -- present modeling challenges when data exhibit structural zeros, overdispersion, and hierarchical clustering. We develop a Bayesian hierarchical hurdle beta-binomial model with…

统计方法学 · 统计学 2026-03-04 JoonHo Lee

In crowd counting datasets, each person is annotated by a point, which is usually the center of the head. And the task is to estimate the total count in a crowd scene. Most of the state-of-the-art methods are based on density map…

计算机视觉与模式识别 · 计算机科学 2019-08-13 Zhiheng Ma , Xing Wei , Xiaopeng Hong , Yihong Gong

This paper examines the quantization methods used in large-scale data analysis models and their hyperparameter choices. The recent surge in data analysis scale has significantly increased computational resource requirements. To address…

机器学习 · 统计学 2024-01-31 Shuhei Kashiwamura , Ayaka Sakata , Masaaki Imaizumi

Quantile treatment effects (QTEs) can characterize the potentially heterogeneous causal effect of a treatment on different points of the entire outcome distribution. Propensity score (PS) methods are commonly employed for estimating QTEs in…

统计方法学 · 统计学 2023-08-15 Yahang Liu , Kecheng Wei , Chen Huang , Yongfu Yu , Guoyou Qin

Quantile regression (QR) is a statistical tool for distribution-free estimation of conditional quantiles of a target variable given explanatory features. QR is limited by the assumption that the target distribution is univariate and defined…

This paper considers the quantile regression approach for partially linear spatial autoregressive models with possibly varying coefficients. B-spline is employed for the approximation of varying coefficients. The instrumental variable…

统计方法学 · 统计学 2016-08-08 Xiaowen Dai , Shaoyang Li , Maozai Tian

The classical concept of inequality curves and measures is extended to conditional inequality curves and measures and a curve of conditional inequality measures is introduced. This extension provides a more nuanced analysis of inequality in…

统计理论 · 数学 2025-04-23 Alicja Jokiel-Rokita , Sylwester Piątek , Rafał Topolnicki

We develop inference procedures for longitudinal data where some of the measurements are censored by fixed constants. We consider a semi-parametric quantile regression model that makes no distributional assumptions. Our research is…

统计理论 · 数学 2009-04-02 Huixia Judy Wang , Mendel Fygenson

We consider quantile regression processes from censored data under dependent data structures and derive a uniform Bahadur representation for those processes. We also consider cases where the dimension of the parameter in the quantile…

统计理论 · 数学 2013-06-14 Stanislav Volgushev , Jens Wagener , Holger Dette

Standard causal inference characterizes treatment effect through averages, but the counterfactual distributions could be different in not only the central tendency but also spread and shape. To provide a comprehensive evaluation of…

统计方法学 · 统计学 2022-11-04 Steven G. Xu , Shu Yang , Brian J. Reich

The widespread use of quantile regression methods depends crucially on the existence of fast algorithms. Despite numerous algorithmic improvements, the computation time is still non-negligible because researchers often estimate many…

计量经济学 · 经济学 2020-04-08 Victor Chernozhukov , Iván Fernández-Val , Blaise Melly

This paper reviews recent developments in statistical structure learning; namely, Bayesian model reduction. Bayesian model reduction is a method for rapidly computing the evidence and parameters of probabilistic models that differ only in…

统计方法学 · 统计学 2019-10-15 Karl Friston , Thomas Parr , Peter Zeidman

Big data analytics has opened new avenues in economic research, but the challenge of analyzing datasets with tens of millions of observations is substantial. Conventional econometric methods based on extreme estimators require large amounts…

计量经济学 · 经济学 2023-11-02 Sokbae Lee , Yuan Liao , Myung Hwan Seo , Youngki Shin

In this paper, we consider Bayesian methods for non-parametric quantile regressions with multiple continuous predictors ranging values in the unit interval. In the first method, the quantile function is assumed to be smooth over the…

统计方法学 · 统计学 2018-11-08 Priyam Das , Subhashis Ghosal

Quantile regression provides a consistent approach to investigating the association between covariates and various aspects of the distribution of the response beyond the mean. When the regression covariates are measured with errors,…

统计方法学 · 统计学 2023-02-09 Roger S. Zoh , Annie Yu , Carmen Tekwe

Quantile Factor Models (QFM) represent a new class of factor models for high-dimensional panel data. Unlike Approximate Factor Models (AFM), where only location-shifting factors can be extracted, QFM also allow to recover unobserved factors…

计量经济学 · 经济学 2020-09-24 Liang Chen , Juan Jose Dolado , Jesus Gonzalo

Quantile regression permits describing how quantiles of a scalar response variable depend on a set of predictors. Because a unique definition of multivariate quantiles is lacking, extending quantile regression to multivariate responses is…

统计方法学 · 统计学 2021-04-22 Silvia Columbu , Paolo Frumento , Matteo Bottai

Quantiles and expected shortfalls are commonly used risk measures in financial risk management. The two measurements are correlated while have distinguished features. In this project, our primary goal is to develop stable and practical…

统计方法学 · 统计学 2022-08-24 Xiang Peng , Huixia Judy Wang