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In this paper, we introduce a new probability distribution, the Lasso distribution. We derive several fundamental properties of the distribution, including closed-form expressions for its moments and moment-generating function.…

This manuscript is concerned with relating two approaches that can be used to explore complex dependence structures between categorical variables, namely Bayesian partitioning of the covariate space incorporating a variable selection…

统计方法学 · 统计学 2016-01-06 Michail Papathomas , Sylvia Richardson

Probability distributions defined on the unit interval are widely used in fields ranging from econometrics to reliability studies. Traditional models such as the beta and Kumaraswamy distributions are well-established due to their…

统计方法学 · 统计学 2026-03-04 Roberto Vila , Helton Saulo , Poliana Matos , Subhankar Dutta

The Unit Weibull distribution with parameters $\alpha$ and $\beta$ is considered to study in the context of dual generalized order statistics. For the analysis purpose, Bayes estimators based on symmetric and asymmetric loss functions are…

统计方法学 · 统计学 2025-02-06 Qazi J. Azhad , Abdul Nasir Khan , Bhagwati Devi , Jahangir Sabbir Khan , Ayush Tripathi

Combining distributions is an important issue in decision theory and Bayesian inference. Logarithmic pooling is a popular method to aggregate expert opinions by using a set of weights that reflect the reliability of each information source.…

In this paper, an alternative Discrete skew Logistic distribution is proposed, which is derived by using the general approach of discretizing a continuous distribution while retaining its survival function. The properties of the…

统计方法学 · 统计学 2016-04-07 Deepesh Bhati , Subrata Chakraborty , Snober Gowhar Lateef

With the multiallelic parent-independent mutation-drift model, the equilibrium proportions of alleles are known to be Dirichlet distributed. A special case is the biallelic model, in which the proportions are beta distributed. A sample…

种群与进化 · 定量生物学 2019-05-07 Claus Vogl , Lynette Caitlin Mikula

A novel family of twelve mixture models with random covariates, nested in the linear $t$ cluster-weighted model (CWM), is introduced for model-based clustering. The linear $t$ CWM was recently presented as a robust alternative to the better…

统计计算 · 统计学 2015-03-10 Salvatore Ingrassia , Simona C. Minotti , Antonio Punzo

Statistical modeling of multivariate and spatial extreme events has attracted broad attention in various areas of science. Max-stable distributions and processes are the natural class of models for this purpose, and many parametric families…

统计方法学 · 统计学 2017-08-09 Clement Dombry , Sebastian Engelke , Marco Oesting

A new distribution is introduced, which we call the twin-t distribution. This distribution is heavy-tailed like the t distribution, but closer to normality in the central part of the curve. Its properties are described, e.g. the pdf, the…

统计方法学 · 统计学 2014-08-15 Rose Baker , Dan Jackson

Partial Least Squares (PLS) refer to a class of dimension-reduction techniques aiming at the identification of two sets of components with maximal covariance, to model the relationship between two sets of observed variables…

统计方法学 · 统计学 2023-02-23 Lola Etievant , Vivian Viallon

The problem of characterizing a multivariate distribution of a random vector using examination of univariate combinations of vector components is an essential issue of multivariate analysis. The likelihood principle plays a prominent role…

统计方法学 · 统计学 2019-10-29 Albert Vexler

Strongly log-concave (SLC) distributions are a rich class of discrete probability distributions over subsets of some ground set. They are strictly more general than strongly Rayleigh (SR) distributions such as the well-known determinantal…

机器学习 · 计算机科学 2019-06-14 Joshua Robinson , Suvrit Sra , Stefanie Jegelka

Computing the marginal likelihood (ML) of a model requires marginalizing out all of the parameters and latent variables, a difficult high-dimensional summation or integration problem. To make matters worse, it is often hard to measure the…

机器学习 · 统计学 2015-11-10 Roger B. Grosse , Zoubin Ghahramani , Ryan P. Adams

We consider the binomial distribution with parameters $n$ and $x$, and show that the sum of the squared probabilities is a log-convex function of $x$. This completes the proof of a conjecture formulated in 2014. Applications to R\'{e}nyi…

经典分析与常微分方程 · 数学 2017-06-19 Ioan Rasa

We introduce a general class of continuous univariate distributions with positive support obtained by transforming the class of two-piece distributions. We show that this class of distributions is very flexible, easy to implement, and…

应用统计 · 统计学 2015-11-06 Francisco J. Rubio , Yili Hong

Correlated proportions appear in many real-world applications and present a unique challenge in terms of finding an appropriate probabilistic model due to their constrained nature. The bivariate beta is a natural extension of the well-known…

统计方法学 · 统计学 2023-03-03 Lucas Machado Moschen , Luiz Max Carvalho

The log-Lindley distribution was recently introduced in the literature as a viable alternative to the Beta distribution. This distribution has a simple structure and possesses useful theoretical properties relevant in insurance. Classical…

统计理论 · 数学 2019-09-06 Aniket Biswas , Subrata Chakraborty , Meghna Mukherjee

Univariate and multivariate normal probability distributions are widely used when modeling decisions under uncertainty. Computing the performance of such models requires integrating these distributions over specific domains, which can vary…

机器学习 · 统计学 2024-07-31 Abhranil Das , Wilson S Geisler

We propose a mixture of latent trait models with common slope parameters (MCLT) for model-based clustering of high-dimensional binary data, a data type for which few established methods exist. Recent work on clustering of binary data, based…

统计方法学 · 统计学 2017-10-09 Yang Tang , Ryan P. Browne , Paul D. McNicholas