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相关论文: Birth-and-death Processes in Python: The BirDePy P…

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This paper studies birth and death processes in interactive random environments where the birth and death rates and the dynamics of the state of the environment are dependent on each other. Two models of a random environment are considered:…

概率论 · 数学 2022-06-28 Guodong Pang , Andrey Sarantsev , Yuri Suhov

We introduce phylodyn, an R package for phylodynamic analysis based on gene genealogies. The package main functionality is Bayesian nonparametric estimation of effective population size fluctuations over time. Our implementation includes…

种群与进化 · 定量生物学 2016-10-20 Michael D. Karcher , Julia A. Palacios , Shiwei Lan , Vladimir N. Minin

Time series data may exhibit clustering over time and, in a multiple time series context, the clustering behavior may differ across the series. This paper is motivated by the Bayesian non--parametric modeling of the dependence between the…

统计理论 · 数学 2011-09-23 Federico Bassetti , Roberto Casarin , Fabrizio Leisen

Markov decision processes (MDPs) provide a fundamental model for sequential decision making under process uncertainty. A classical synthesis task is to compute for a given MDP a winning policy that achieves a desired specification. However,…

计算机科学中的逻辑 · 计算机科学 2024-07-18 Roman Andriushchenko , Milan Češka , Sebastian Junges , Filip Macák

We consider birth-and-death processes of objects (animals) defined in ${\bf Z}^d$ having unit death rates and random birth rates. For animals with uniformly bounded diameter we establish conditions on the rate distribution under which the…

概率论 · 数学 2007-05-23 Roberto Fernandez , Pablo A. Ferrari , Gustavo R. Guerberoff

Product Engineering Processes (PEPs) are used for describing complex product developments in big enterprises such as automotive and avionics industries. The Business Process Model Notation (BPMN) is a widely used language to encode…

计算机科学中的逻辑 · 计算机科学 2022-03-15 Hassan Hage , Emmanouil Seferis , Vahid Hashemi , Frank Mantwill

Partial Dependence Plots (PDPs) visualize how changes in a single feature affect the average model prediction. They are widely used in practice to interpret decision tree ensembles and other machine learning models. Joint-PDPs extend this…

机器学习 · 计算机科学 2026-05-15 Ron Wettenstein , Alexander Nadel , Udi Boker

Bayesian Networks (BNs) are used in various fields for modeling, prediction, and decision making. pgmpy is a python package that provides a collection of algorithms and tools to work with BNs and related models. It implements algorithms for…

机器学习 · 计算机科学 2023-04-19 Ankur Ankan , Johannes Textor

Dynamic high resolution data on human population distribution is of great importance for a wide spectrum of activities and real-life applications, but is too difficult and expensive to obtain directly. Therefore, generating fine-scaled…

计算机视觉与模式识别 · 计算机科学 2018-11-29 Zefang Zong , Jie Feng , Kechun Liu , Hongzhi Shi , Yong Li

We propose a stochastic model for evolution. Births and deaths of species occur with constant probabilities. Each new species is associated with a fitness sampled from the uniform distribution on [0,1]. Every time there is a death event…

概率论 · 数学 2010-11-09 Herve Guiol , Fabio P. Machado , Rinaldo B. Schinazi

PySDM is an open-source Python package for simulating the dynamics of particles undergoing condensational and collisional growth, interacting with a fluid flow and subject to chemical composition changes. It is intended to serve as a…

We are interested in modelling Darwinian evolution, resulting from the interplay of phenotypic variation and natural selection through ecological interactions. Our models are rooted in the microscopic, stochastic description of a population…

概率论 · 数学 2016-08-16 Nicolas Champagnat , Régis Ferrière , Sylvie Méléard

We consider a broad class of continuous-time two-type population size-dependent Markov Branching Processes. The offspring distribution can depend on the current (alive) and total (dead and alive) populations. Using stochastic approximation…

概率论 · 数学 2023-04-04 Khushboo Agarwal , Veeraruna Kavitha

This paper is concerned with a data-driven technique for constructing finite Markov decision processes (MDPs) as finite abstractions of discrete-time stochastic control systems with unknown dynamics while providing formal closeness…

系统与控制 · 电气工程与系统科学 2022-06-30 Abolfazl Lavaei , Sadegh Soudjani , Emilio Frazzoli , Majid Zamani

1. Natural sounds have been recorded for millions of hours over the previous decades using passive acoustic monitoring. Improvements in deep learning models have vastly accelerated the analysis of large portions of this data. While new…

机器学习 · 计算机科学 2026-04-14 Vincent S. Kather , Sylvain Haupert , Burooj Ghani , Dan Stowell

Spatial birth and death processes are obtained as solutions of a system of stochastic equations. The processes are required to be locally finite, but may involve an infinite population over the full (noncompact) type space. Conditions are…

概率论 · 数学 2007-05-23 Nancy L. Garcia , Thomas G. Kurtz

In order to numerically solve high-dimensional nonlinear PDEs and alleviate the curse of dimensionality, a stochastic particle method (SPM) has been proposed to capture the relevant feature of the solution through the adaptive evolution of…

数值分析 · 数学 2026-03-16 Jingyang Huang , Zhengyang Lei , Sihong Shao

The birth-death process is a special type of continuous-time Markov chain with index set $\mathbb{N}$. Its resolvent matrix can be fully characterized by a set of parameters $(\gamma, \beta, \nu)$, where $\gamma$ and $\beta$ are…

概率论 · 数学 2024-09-10 Liping Li

We consider a continuous time Markov process on $\mathbb{N}_0$ which can be interpreted as generalized alternating birth-death process in a non-autonomous random environment. Depending on the status of the environment the process either…

概率论 · 数学 2020-05-13 Hans Daduna

Active inference is an account of cognition and behavior in complex systems which brings together action, perception, and learning under the theoretical mantle of Bayesian inference. Active inference has seen growing applications in…

人工智能 · 计算机科学 2022-05-06 Conor Heins , Beren Millidge , Daphne Demekas , Brennan Klein , Karl Friston , Iain Couzin , Alexander Tschantz