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The present study proposes incorporating non-parametric knowledge into the diffusion least-mean-squares algorithm in the framework of a maximum a posteriori (MAP) estimation. The proposed algorithm leads to a robust estimation of an unknown…

机器学习 · 计算机科学 2023-12-05 Soheil Ashkezari-Toussi , Hadi sadoghi-Yazdi

Forecasters using flexible neural networks (NN) in multi-horizon distributional regression setups often struggle to gain detailed insights into the underlying mechanisms that lead to the predicted feature-conditioned distribution…

机器学习 · 计算机科学 2024-12-23 Alessandro Brusaferri , Danial Ramin , Andrea Ballarino

Ensemble weather predictions require statistical post-processing of systematic errors to obtain reliable and accurate probabilistic forecasts. Traditionally, this is accomplished with distributional regression models in which the parameters…

机器学习 · 统计学 2019-04-01 Stephan Rasp , Sebastian Lerch

We present a method of constructing low-dimensional nonlinear models describing the main dynamical features of a discrete 2D cellular fault zone, with many degrees of freedom, embedded in a 3D elastic solid. A given fault system is…

地球物理 · 物理学 2009-11-10 Marian Anghel , Yehuda Ben-Zion , Ramiro Rico-Martinez

This paper describes a methodology for detecting anomalies from sequentially observed and potentially noisy data. The proposed approach consists of two main elements: (1) {\em filtering}, or assigning a belief or likelihood to each…

机器学习 · 计算机科学 2016-11-17 Maxim Raginsky , Rebecca Willett , Corinne Horn , Jorge Silva , Roummel Marcia

Identifying systematic patterns in seismicity that precede large earthquakes remains a central challenge in statistical seismology. In this work, we present a methodological framework for detecting spatiotemporal anomalies in seismicity…

地球物理 · 物理学 2026-02-16 Jonas Köhler , Wei Li , Johannes Faber , Georg Rümpker , Nishtha Srivastava

In recent years research on credit risk modelling has mainly focused on default probabilities. Recovery rates are usually modelled independently, quite often they are even assumed constant. Then, however, the structural connection between…

风险管理 · 定量金融 2015-03-06 Alexander F. R. Koivusalo , Rudi Schäfer

Developing a rapid, but also reliable and efficient, method for classifying the seismic damage potential of buildings constructed in countries with regions of high seismicity is always at the forefront of modern scientific research. Such a…

机器学习 · 计算机科学 2022-05-03 Konstantinos Kostinakis , Konstantinos Morfidis , Konstantinos Demertzis , Lazaros Iliadis

In regression analysis of counts, a lack of simple and efficient algorithms for posterior computation has made Bayesian approaches appear unattractive and thus underdeveloped. We propose a lognormal and gamma mixed negative binomial (NB)…

应用统计 · 统计学 2012-07-03 Mingyuan Zhou , Lingbo Li , David Dunson , Lawrence Carin

Psychometric assessment instruments aid clinicians by providing methods of assessing the future risk of adverse events such as aggression. Existing machine learning approaches have treated this as a classification problem, predicting the…

机器学习 · 计算机科学 2023-12-05 Aidan Quinn , Melanie Simmons , Benjamin Spivak , Christoph Bergmeir

Roadway traffic accidents represent a global health crisis, responsible for over a million deaths annually and costing many countries up to 3% of their GDP. Traditional traffic safety studies often examine risk factors in isolation,…

计算机视觉与模式识别 · 计算机科学 2025-11-10 Ahmad Elallaf , Nathan Jacobs , Xinyue Ye , Mei Chen , Gongbo Liang

The recent exploitation of natural resources and associated waste water injection in the subsurface have induced many small and moderate earthquakes in the tectonically quiet Central United States. This increase in seismic activity has…

地球物理 · 物理学 2023-04-18 José Augusto Proença Maia Devienne

Capturing aleatoric uncertainty is a critical part of many machine learning systems. In deep learning, a common approach to this end is to train a neural network to estimate the parameters of a heteroscedastic Gaussian distribution by…

机器学习 · 计算机科学 2022-04-04 Maximilian Seitzer , Arash Tavakoli , Dimitrije Antic , Georg Martius

We develop a technique to estimate spatially varying seismicity patterns. It is based on a Gaussian approximation of the underlying Poisson Process. A link function is used to estimate local moments of the seismicity from observed…

地球物理 · 物理学 2020-10-26 M. Holschneider , K. Ferrat , G. Zöller , Ch. Molkenthin

Machine learning models have exhibited exceptional results in various domains. The most prevalent approach for learning is the empirical risk minimizer (ERM), which adapts the model's weights to reduce the loss on a training set and…

机器学习 · 计算机科学 2024-12-11 Koby Bibas

Tectonic earthquakes of high magnitude can cause considerable losses in terms of human lives, economic and infrastructure, among others. According to an evaluation published by the U.S. Geological Survey, 30 is the number of earthquakes…

神经与进化计算 · 计算机科学 2014-08-20 Cinthya Mota-Hernandez , Luis Esquivel-Rodriguez , Rafael Alvarado-Corona

We present a model for estimating the probabilities of future earthquakes of magnitudes m > 4.95 in Italy. The model, a slightly modified version of the one proposed for California by Helmstetter et al. (2007) and Werner et al. (2010),…

地球物理 · 物理学 2012-07-26 M. J. Werner , A. Helmstetter , D. D. Jackson , Y. Y. Kagan , S. Wiemer

Earthquake prediction has been a challenging research area for many decades, where the future occurrence of this highly uncertain calamity is predicted. In this paper, several parametric and non-parametric features were calculated, where…

地球物理 · 物理学 2023-01-25 Gunbir Singh Baveja , Jaspreet Singh

Model averaging methods have become an increasingly popular tool for improving predictions and dealing with model uncertainty, especially in Bayesian settings. Recently, frequentist model averaging methods such as information theoretic and…

计量经济学 · 经济学 2024-04-18 Kevin Huynh

Matrix completion focuses on recovering missing or incomplete information in matrices. This problem arises in various applications, including image processing and network analysis. Previous research proposed Poisson matrix completion for…

机器学习 · 计算机科学 2024-08-30 Yu Lu , Kevin Bui , Roummel F. Marcia