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The Power Generalized DUS (PGDUS) Transformation is significant in reliability theory, especially for analyzing parallel systems. From the Generalized Extreme Value distribution, Inverse Weibull model particularly has wide applicability in…

统计方法学 · 统计学 2025-04-18 P Gauthami , V M Chacko

Based on the normal distribution and its properties, i.e., average and variance, Fisher works have provided a conceptual framework to identify genotype-phenotype associations. While Fisher intuition has proved fruitful over the past…

种群与进化 · 定量生物学 2023-07-06 Cyril Rauch , Panagiota Kyratzi , Andras Paldi

Deployment of machine learning models in real high-risk settings (e.g. healthcare) often depends not only on the model's accuracy but also on its fairness, robustness, and interpretability. Generalized Additive Models (GAMs) are a class of…

机器学习 · 计算机科学 2022-03-17 Chun-Hao Chang , Rich Caruana , Anna Goldenberg

The Generalized Pareto Distribution (GPD) plays a central role in modelling heavy tail phenomena in many applications. Applying the GPD to actual datasets however is a non-trivial task. One common way suggested in the literature to…

统计理论 · 数学 2017-08-08 Se Yoon Lee , Joseph H. T. Kim

Decision Trees have remained a popular machine learning method for tabular datasets, mainly due to their interpretability. However, they lack the expressiveness needed to handle highly nonlinear or unstructured datasets. Motivated by recent…

机器学习 · 计算机科学 2024-10-30 Dimitris Bertsimas , Lisa Everest , Jiayi Gu , Matthew Peroni , Vasiliki Stoumpou

The variance-gamma (VG) distributions form a four-parameter family which includes as special and limiting cases the normal, gamma and Laplace distributions. Some of the numerous applications include financial modelling and distributional…

统计理论 · 数学 2023-03-13 Adrian Fischer , Robert E. Gaunt , Andrey Sarantsev

Large interacting systems in biology often exhibit emergent dynamics, such as coexistence of multiple time scales, manifested by fat tails in the distribution of waiting times. While existing tools in statistical inference, such as maximum…

Based on suitable left-truncated or censored data, two flexible classes of $M$-estimations of Weibull tail coefficient are proposed with two additional parameters bounding the impact of extreme contamination. Asymptotic normality with…

统计理论 · 数学 2018-10-18 Chengping Gong , Chengxiu Ling

The G-Wishart distribution is an essential component for the Bayesian analysis of Gaussian graphical models as the conjugate prior for the precision matrix. Evaluating the marginal likelihood of such models usually requires computing…

统计方法学 · 统计学 2025-04-11 Ching Wong , Giusi Moffa , Jack Kuipers

We consider a model for multivariate data with heavy-tailed marginal distributions and a Gaussian dependence structure. The different marginals in the model are allowed to have non-identical tail behavior in contrast to most popular…

统计方法学 · 统计学 2023-05-23 Bikramjit Das

The Gaussian graphical model is routinely employed to model the joint distribution of multiple random variables. The graph it induces is not only useful for describing the relationship between random variables but also critical for…

统计方法学 · 统计学 2022-12-15 Thien-Minh Le , Ping-Shou Zhong , Chenlei Leng

A model's interpretability is essential to many practical applications such as clinical decision support systems. In this paper, a novel interpretable machine learning method is presented, which can model the relationship between input…

The field of health informatics has been profoundly influenced by the development of random forest models, which have led to significant advances in the interpretability of feature interactions. These models are characterized by their…

机器学习 · 计算机科学 2025-06-04 Akshat Dubey , Aleksandar Anžel , Georges Hattab

The Multivariate Extreme Value distributions have shown their usefulness in environmental studies, financial and insurance mathematics. The Logistic or Gumbel-Hougaard distribution is one of the oldest multivariate extreme value models and…

概率论 · 数学 2011-04-29 Helena Ferreira , Luísa Pereira

Predictive analytics aims to build machine learning models to predict behavior patterns and use predictions to guide decision-making. Predictive analytics is human involved, thus the machine learning model is preferred to be interpretable.…

机器学习 · 计算机科学 2023-03-14 Yuanyuan Jiang , Rui Ding , Tianchi Qiao , Yunan Zhu , Shi Han , Dongmei Zhang

We revisit granular models that represent the size of a firm as the sum of the sizes of multiple constituents or sub-units. Originally developed to address the unexpectedly slow reduction in volatility as firm size increases, these models…

综合经济学 · 经济学 2024-06-04 José Moran , Angelo Secchi , Jean-Philippe Bouchaud

Region-of-Interest (ROI)-based image compression allocates bits unevenly according to the semantic importance of different regions. Such differentiated coding typically induces a sharp-peaked and heavy-tailed distribution. This distribution…

图像与视频处理 · 电气工程与系统科学 2026-02-03 Kai Hu , Junfu Tan , Fang Xu , Ramy Samy , Yu Liu

An interpretable model or method has several appealing features, such as reliability to adversarial examples, transparency of decision-making, and communication facilitator. However, interpretability is a subjective concept, and even its…

统计方法学 · 统计学 2025-02-25 Tianyu Zhan , Jian Kang

The realized GARCH framework is extended to incorporate the two-sided Weibull distribution, for the purpose of volatility and tail risk forecasting in a financial time series. Further, the realized range, as a competitor for realized…

风险管理 · 定量金融 2017-07-13 Chao Wang , Qian Chen , Richard Gerlach

We present a simple method to quantitatively capture the heterogeneity in the degree distribution of a network graph using a single parameter $\sigma$. Using an exponential transformation of the shape parameter of the Weibull distribution,…

数据分析、统计与概率 · 物理学 2023-05-05 Sinan A. Ozbay , Maximilian M. Nguyen