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Motivated by the increasingly popular Score-based Generative Modeling (SGM), we study the Inexact Langevin Dynamics (ILD) and Inexact Langevin Algorithm (ILA) where a score function estimate is used in place of the exact score. We establish…

机器学习 · 计算机科学 2026-03-31 Kaylee Yingxi Yang , Andre Wibisono

In this paper we propose a Farlie-Gumbel-Morgenstern (FGM) family of bivariate linear exponential distributions generated from given marginal's. Therefore, properties of FGM are analogous to properties of bivariate distributions. We study…

统计方法学 · 统计学 2015-01-23 M. A. El-Damcese , Dina. A. Ramadan

We study copula-based collective risk models when the dependence structure is defined by a Farlie-Gumbel-Morgenstern (FGM) copula. By leveraging a one-to-one correspondence between the class of FGM copulas and multivariate symmetric…

应用统计 · 统计学 2024-09-04 Christopher Blier-Wong , Hélène Cossette , Etienne Marceau

For estimating the large covariance matrix with a limited sample size, we propose the covariance model with general linear structure (CMGL) by employing the general link function to connect the covariance of the continuous response vector…

统计方法学 · 统计学 2022-05-17 Xinyan Fan , Wei Lan , Tao Zou , Chih-Ling Tsai

In this paper, we investigate binary response models for heterogeneous panel data with interactive fixed effects by allowing both the cross-sectional dimension and the temporal dimension to diverge. From a practical point of view, the…

计量经济学 · 经济学 2021-11-18 Jiti Gao , Fei Liu , Bin Peng , Yayi Yan

This paper proposes a new generalized linear model with the fractional binomial distribution. Zero-inflated Poisson/negative binomial distributions are used for count data with many zeros. To analyze the association of such a count variable…

统计方法学 · 统计学 2025-08-01 Jeonghwa Lee , Chloe Breece

This paper introduces a novel decision-making framework that promotes consistency among decisions made by diverse models while utilizing external knowledge. Leveraging the Integer Linear Programming (ILP) framework, we map predictions from…

人工智能 · 计算机科学 2024-02-07 Hossein Rajaby Faghihi , Parisa Kordjamshidi

Use copula to model dependency of variable extends multivariate gaussian assumption. In this paper we first empirically studied copula regression model with continous response. Both simulation study and real data study are given. Secondly…

统计方法学 · 统计学 2021-01-05 Weijian Luo , Mai Wo

Offline inverse reinforcement learning (Offline IRL) aims to recover the structure of rewards and environment dynamics that underlie observed actions in a fixed, finite set of demonstrations from an expert agent. Accurate models of…

机器学习 · 计算机科学 2024-03-01 Siliang Zeng , Chenliang Li , Alfredo Garcia , Mingyi Hong

We consider Heterogeneous Transfer Learning (HTL) from a source to a new target domain for high-dimensional regression with differing feature sets. Most homogeneous TL methods assume that target and source domains share the same feature…

机器学习 · 统计学 2025-12-02 Jae Ho Chang , Massimiliano Russo , Subhadeep Paul

We propose Information Theoretic-Learning (ITL) divergence measures for variational regularization of neural networks. We also explore ITL-regularized autoencoders as an alternative to variational autoencoding bayes, adversarial…

机器学习 · 计算机科学 2016-03-23 Eder Santana , Matthew Emigh , Jose C Principe

Data analysis based on information from several sources is common in economic and biomedical studies. This setting is often referred to as the data fusion problem, which differs from traditional missing data problems since no complete data…

统计方法学 · 统计学 2022-04-07 Wei Li , Shanshan Luo , Wangli Xu

Log-linear models are a classical tool for the analysis of contingency tables. In particular, the subclass of graphical log-linear models provides a general framework for modelling conditional independences. However, with the exception of…

统计理论 · 数学 2010-03-04 Mathias Drton , Thomas S. Richardson

This paper aims to reevaluate the Taylor Rule, through a linear and a nonlinear method, such that its estimated federal funds rates match those actually previously implemented by the Federal Reserve Bank. In the linear method, this paper…

综合经济学 · 经济学 2023-02-17 Alper Deniz Karakas

Forecasting with longitudinal data has been rarely studied. Most of the available studies are for continuous response and all of them are for univariate response. In this study, we consider forecasting multivariate longitudinal binary data.…

应用统计 · 统计学 2014-03-13 Ozgur Asar , Ozlem Ilk

Missing data are inevitable in longitudinal studies. Traditional methods, such as the full information maximum likelihood (FIML), are commonly used to handle ignorable missing data. However, they may lead to biased model estimation due to…

应用统计 · 统计学 2024-01-01 Dandan Tang , Xin Tong

We propose a novel distributional regression model for a multivariate response vector based on a copula process over the covariate space. It uses the implicit copula of a Gaussian multivariate regression, which we call a ``regression…

统计方法学 · 统计学 2024-03-06 Nadja Klein , Michael Stanley Smith , David Nott , Ryan Chisholm

Persistent homology is a cornerstone of topological data analysis, offering a multiscale summary of topology with robustness to nuisance transformations, such as rotations and small deformations. Persistent homology has seen broad use…

统计方法学 · 统计学 2025-11-19 Zitian Wu , Arkaprava Roy , Leo L. Duan

This paper proposes multivariate copula models for hierarchical data. They account for two types of correlation: one is between variables measured on the same unit and the other is a correlation between units in the same cluster. This model…

统计方法学 · 统计学 2023-04-24 Talagbe Gabin Akpo , Louis-Paul Rivest

We introduce a strategy for specifying informative inverse-gamma (IG) priors for variance components in Bayesian multilevel models (MLMs), derived via transformations from chi-square to gamma to inverse-gamma distributions. A Monte Carlo…

统计方法学 · 统计学 2025-09-03 Liu Liu