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Modeling neural population dynamics underlying noisy single-trial spiking activities is essential for relating neural observation and behavior. A recent non-recurrent method - Neural Data Transformers (NDT) - has shown great success in…

神经元与认知 · 定量生物学 2022-06-13 Trung Le , Eli Shlizerman

We propose a general model to study the interplay between spatial dispersal and environment spatiotemporal fluctuations in metapopulation dynamics. An ecological landscape of favorable patches is generated like a L\'{e}vy dust, which allows…

种群与进化 · 定量生物学 2015-08-20 E. H. Colombo , C. Anteneodo

Spatio-temporal Hawkes point processes are a particularly interesting class of stochastic point processes for modeling self-exciting behavior, in which the occurrence of one event increases the probability of other events occurring. These…

统计计算 · 统计学 2025-11-19 Alba Bernabeu , Jorge Mateu

We propose a novel method for numerical modeling of spatially inhomogeneous moment dynamics of populations with nonlocal dispersal and competition in continuous space. It is based on analytically solvable decompositions of the time…

种群与进化 · 定量生物学 2019-07-24 Igor Omelyan , Yuri Kozitsky

Gaussian stochastic process emulation is a powerful tool for approximating computationally intensive computer models. However, estimation of parameters in the GaSP emulator is a challenging task. No closed-form estimator is available, and…

统计计算 · 统计学 2026-05-06 Mengyang Gu , Jesús Palomo , James O. Berger

In present paper we suggest a new universal approach to study complex systems by microscopic, mesoscopic and macroscopic methods. We discuss new possibilities of extracting information on nonstationarity, unsteadiness and non-Markovity of…

无序系统与神经网络 · 物理学 2007-05-23 Renat M. Yulmetyev , Anatolii V. Mokshin , Peter Hänggi

We are concerned with a nonlinear nonautonomous model represented by an equation describing the dynamics of an age-structured population diffusing in a space habitat $O,$ governed by local Lipschitz vital factors and by a stochastic…

偏微分方程分析 · 数学 2020-04-22 Gabriela Marinoschi

Random walks are a fundamental model in applied mathematics and are a common example of a Markov chain. The limiting stationary distribution of the Markov chain represents the fraction of the time spent in each state during the stochastic…

数值分析 · 计算机科学 2018-01-08 Austin R. Benson , David F. Gleich , Lek-Heng Lim

After reviewing the behavioral studies of working memory and of the cellular substrate of the latter, we argue that metastable states constitute candidates for the type of transient information storage required by working memory. We then…

神经元与认知 · 定量生物学 2024-03-18 Christophe Pouzat , Morgan André

Infectious diseases outbreaks are often characterized by a spatial component induced by hosts' distribution, mobility, and interactions. Spatial models that incorporate hosts' movements are being used to describe these processes, to…

物理与社会 · 物理学 2012-07-20 Chiara Poletto , Michele Tizzoni , Vittoria Colizza

In this paper, we investigate the problem of remote estimation of a discrete-time joint Markov process using multiple sensors. Each sensor observes a different component of the joint Markov process, and in each time slot, the monitor…

信息论 · 计算机科学 2025-01-23 Ismail Cosandal , Sennur Ulukus , Nail Akar

This chapter presents an introduction to Markovian modeling for the analysis of sequence data. Contrary to the deterministic approach seen in the previous sequence analysis chapters, Markovian models are probabilistic models, focusing on…

统计方法学 · 统计学 2023-09-18 Jouni Helske , Satu Helske , Mohammed Saqr , Sonsoles López-Pernas , Keefe Murphy

We introduce the spatiotemporal Markov decision process (STMDP), a special type of Markov decision process that models sequential decision-making problems which are not only characterized by temporal, but also by spatial interaction…

最优化与控制 · 数学 2025-01-08 M. C. de Jongh , Richard J. Boucherie , M. N. M. van Lieshout

This paper introduces a novel framework for causal inference in spatial economics that explicitly models the stochastic transition from partial to general equilibrium effects. We develop a Denoising Diffusion Probabilistic Model (DDPM)…

综合经济学 · 经济学 2025-10-28 Tatsuru Kikuchi

Occupancy modeling is a common approach to assess spatial and temporal species distribution patterns, while explicitly accounting for measurement errors common in detection-nondetection data. Numerous extensions of the basic single species…

应用统计 · 统计学 2022-05-04 Jeffrey W. Doser , Andrew O. Finley , Marc Kéry , Elise F. Zipkin

This article introduces epidemia, an R package for Bayesian, regression-oriented modeling of infectious diseases. The implemented models define a likelihood for all observed data while also explicitly modeling transmission dynamics: an…

We consider continuous time Markovian processes where populations of individual agents interact stochastically according to kinetic rules. Despite the increasing prominence of such models in fields ranging from biology to smart cities,…

机器学习 · 统计学 2016-05-16 Anastasis Georgoulas , Jane Hillston , Guido Sanguinetti

The biologically-inspired swarm paradigm is being used to design self-organizing systems of locally interacting artificial agents. A major difficulty in designing swarms with desired characteristics is understanding the causal relation…

多智能体系统 · 计算机科学 2016-11-17 Aram Galstyan , Tad Hogg , Kristina Lerman

The developing field of stochastic thermodynamics extends concepts of macroscopic thermodynamics such as entropy production and work to the microscopic level of individual trajectories taken by a system through phase space. The scheme…

统计力学 · 物理学 2022-06-30 Cillian Cockrell , Ian J Ford

We present a numerical method for learning the dynamics of slow components of unknown multiscale stochastic dynamical systems. While the governing equations of the systems are unknown, bursts of observation data of the slow variables are…

机器学习 · 计算机科学 2024-08-28 Yuan Chen , Dongbin Xiu