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This paper introduces the Generalized Fractional Compound Poisson Process (GFCPP), which claims to be a unified fractional version of the compound Poisson process (CPP) that encompasses existing variations as special cases. We derive its…

概率论 · 数学 2023-07-25 Neha Gupta , Aditya Maheshwari

Many astrophysical phenomena are time-varying, in the sense that their intensity, energy spectrum, and/or the spatial distribution of the emission suddenly change. This paper develops a method for modeling a time series of images. Under the…

天体物理仪器与方法 · 物理学 2021-03-24 Cong Xu , Hans Moritz Günther , Vinay L. Kashyap , Thomas C. M. Lee , Andreas Zezas

Recent increase in wildfires worldwide has led to the need for real-time fire nowcasting. Physics-driven models, such as cellular automata and computational fluid dynamics can provide high-fidelity fire spread simulations but they are…

机器学习 · 计算机科学 2023-08-08 Sibo Cheng , Yike Guo , Rossella Arcucci

In this paper, a Bayesian method for piecewise regression is adapted to handle counting processes data distributed as Poisson. A numerical code in Mathematica is developed and tested analyzing simulated data. The resulting method is…

数据分析、统计与概率 · 物理学 2017-02-21 Diego Sevilla

In this paper we present multivariate space-time fractional Poisson processes by considering common random time-changes of a (finite-dimensional) vector of independent classical (non-fractional) Poisson processes. In some cases we also…

概率论 · 数学 2015-07-22 Luisa Beghin , Claudio Macci

Feature selection procedures for spatial point processes parametric intensity estimation have been recently developed since more and more applications involve a large number of covariates. In this paper, we investigate the setting where the…

统计方法学 · 统计学 2017-12-29 Achmad Choiruddin , Jean-François Coeurjolly , Frédérique Letué

The paper considers a Cox process where the stochastic intensity function for the Poisson data model is itself a non-homogeneous Poisson process. We show that it is possible to obtain the marginal data process, namely a non-homogeneous…

统计方法学 · 统计学 2023-04-17 Shuying Wang , Stephen G. Walker

In this work we introduce a semi-parametric Bayesian change-point model, defining its time dynamic as a latent Markov process based on the Dirichlet process. We treat the number of change point as a random variable and we estimate it during…

统计计算 · 统计学 2018-08-28 Gianluca Mastrantonio

Wildfires are highly imbalanced natural hazards in both space and severity, making the prediction of extreme events particularly challenging. In this work, we introduce the first ordinal classification framework for forecasting wildfire…

机器学习 · 计算机科学 2026-05-26 Nicolas Caron , Christophe Guyeux , Hassan Noura , Benjamin Aynes

Wildland fire dynamics is a complex turbulent dimensional process. Cellular automata (CA) is an efficient tool to predict fire dynamics, but the main parameters of the method are challenging to estimate. To overcome this challenge, we…

元胞自动机与格子气 · 物理学 2017-12-14 Miles Currie , Kevin Speer , Kevin Hiers , Joseph O'Brien , Scott Goodrick , Bryan Quaife

Wildfires increasingly threaten human life, ecosystems, and infrastructure, with events like the 2025 Palisades and Eaton fires in Los Angeles County underscoring the urgent need for more advanced prediction frameworks. Existing…

人工智能 · 计算机科学 2025-08-05 Haowen Xu , Sisi Zlatanova , Ruiyu Liang , Ismet Canbulat

The 2019-20 Australia bushfire incurred numerous economic losses and significantly affected the operations of power systems. A power station or transmission line can be significantly affected due to bushfires, leading to an increase in…

系统与控制 · 电气工程与系统科学 2025-02-24 Jianyu Xu , Qiuzhuang Sun , Yang Yang , Huadong Mo , Daoyi Dong

The study of post-wildfire plant regrowth is essential for developing successful ecosystem recovery strategies. Prior research mainly examines key ecological and biogeographical factors influencing post-fire succession. This research…

机器学习 · 计算机科学 2023-11-07 Jiahe Liu , Xiaodi Wang

Many applications require the ability to judge uncertainty of time-series forecasts. Uncertainty is often specified as point-wise error bars around a mean or median forecast. Due to temporal dependencies, such a method obscures some…

机器学习 · 统计学 2012-11-14 Sriharsha Veeramachaneni

We study online change point detection for multivariate inhomogeneous Poisson point process time series. This setting arises commonly in applications such as earthquake seismology, climate monitoring, and epidemic surveillance, yet remains…

统计方法学 · 统计学 2026-05-25 Xiaokai Luo , Haotian Xu , Carlos Misael Madrid Padilla , Oscar Hernan Madrid Padilla

In this article, we derive the state probabilities of different type of space- and time-fractional Poisson processes using z-transform. We work on tempered versions of time-fractional Poisson process and space-fractional Poisson processes.…

概率论 · 数学 2018-08-03 Neha Gupta , Arun Kumar , Nikolai Leonenko

The negative binomial distribution has been widely used as a more flexible model than the Poisson distribution for count data. However, when the true data-generating process is Poisson, it is often challenging to distinguish it from a…

统计理论 · 数学 2026-04-07 Yingying Yang , Niloufar Dousti Mousavi , Zhou Yu , Jie Yang

We generate the fractional Poisson process by subordinating the standard Poisson process to the inverse stable subordinator. Our analysis is based on application of the Laplace transform with respect to both arguments of the evolving…

概率论 · 数学 2013-05-24 Rudolf Gorenflo , Francesco Mainardi

The observations in many applications consist of counts of discrete events, such as photons hitting a detector, which cannot be effectively modeled using an additive bounded or Gaussian noise model, and instead require a Poisson noise…

最优化与控制 · 数学 2011-10-13 Zachary T. Harmany , Roummel F. Marcia , Rebecca M. Willett

This work introduces and compares approaches for estimating rare-event probabilities related to the number of edges in the random geometric graph on a Poisson point process. In the one-dimensional setting, we derive closed-form expressions…

概率论 · 数学 2020-07-14 Christian Hirsch , Sarat B. Moka , Thomas Taimre , Dirk P. Kroese