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Cities are typical dynamic complex systems that connect people and facilitate interactions. Revealing universal collective patterns behind spatio-temporal interactions between residents is crucial for various urban studies, of which we are…

物理与社会 · 物理学 2024-06-11 Chenxin Liu , Yu Yang , Bingsheng Chen , Tianyu Cui , Fan Shang , Jingfang Fan , Ruiqi Li

A deterministic system of interacting agents is considered as a model for economic dynamics. The dynamics of the system is described by a coupled map lattice with near neighbor interactions. The evolution of each agent results from the…

综合金融 · 定量金融 2009-11-13 J. Gonzalez-Estevez , M. G. Cosenza , R. Lopez-Ruiz , J. R. Sanchez

Spatial extent is a complicating factor in mathematical biology. The possibility that an action at point A cannot immediately affect what happens at point B creates the opportunity for spatial nonuniformity. This nonuniformity must change…

元胞自动机与格子气 · 物理学 2014-01-03 Blake C. Stacey , Andreas Gros , Yaneer Bar-Yam

This paper studies a general class of stochastic population processes in which agents interact with one another over a network. Agents update their behaviors in a random and decentralized manner according to a policy that depends only on…

概率论 · 数学 2023-07-21 Anirudh Sridhar , Soummya Kar

Abridged abstract: Inert interactions between randomly moving entities and spatial disorder play a crucial role in quantifying the diffusive properties of a system. These interactions affect only the movement of the entities, and examples…

统计力学 · 物理学 2022-09-20 Seeralan Sarvaharman , Luca Giuggioli

Behavior prediction based on historical behavioral data have practical real-world significance. It has been applied in recommendation, predicting academic performance, etc. With the refinement of user data description, the development of…

机器学习 · 计算机科学 2023-09-27 Haobing Liu , Yanmin Zhu , Chunyang Wang , Jianyu Ding , Jiadi Yu , Feilong Tang

We propose a simple model for sample space reducing (SSR) stochastic process, where the dynamical variable denoting the size of the state space is continuous. In general, one can view the model as a multiplicative stochastic process, with a…

统计力学 · 物理学 2025-07-25 Rahul Chhimpa , Avinash Chand Yadav\

We derive a class of macroscopic differential equations that describe collective adaptation, starting from a discrete-time stochastic microscopic model. The behavior of each agent is a dynamic balance between adaptation that locally…

适应与自组织系统 · 物理学 2024-05-15 Yuzuru Sato , Eizo Akiyama , James P. Crutchfield

Marked temporal point processes (MTPPs) model sequences of events occurring at irregular time intervals, with wide-ranging applications in fields such as healthcare, finance and social networks. We propose the state-space point process…

Multi-state models are frequently applied for representing processes evolving through a discrete set of state. Important classes of multi-state models arise when transitions between states may depend on the time since entry into the current…

统计方法学 · 统计学 2022-02-28 Rosario Barone , Andrea Tancredi

This article presents the long-term behaviour analysis of Stochastic Diffusion Search (SDS), a distributed agent-based system for best-fit pattern matching. SDS operates by allocating simple agents into different regions of the search…

人工智能 · 计算机科学 2007-05-23 Slawomir J. Nasuto , Mark J. Bishop

State-space models (SSMs) are an important modeling framework for analyzing ecological time series. These hierarchical models are commonly used to model population dynamics, animal movement, and capture-recapture data, and are now…

Relational event data, which consist of events involving pairs of actors over time, are now commonly available at the finest of temporal resolutions. Existing continuous-time methods for modeling such data are based on point processes and…

统计方法学 · 统计学 2018-06-21 Wesley Lee , Bailey K. Fosdick , Tyler H. McCormick

An event-based state estimation approach for reducing communication in a networked control system is proposed. Multiple distributed sensor-actuator-agents observe a dynamic process and sporadically exchange their measurements and inputs…

系统与控制 · 计算机科学 2017-01-30 Sebastian Trimpe

Stability and analysis of multi-agent network systems with state-dependent switching typologies have been a fundamental and longstanding challenge in control, social sciences, and many other related fields. These already complex systems…

系统与控制 · 计算机科学 2018-12-27 S. Rasoul Etesami

Relational event network data are becoming increasingly available. Consequently, statistical models for such data have also surfaced. These models mainly focus on the analysis of single networks, while in many applications, multiple…

统计方法学 · 统计学 2023-06-08 Fabio Vieira , Roger Leenders , Daniel McFarland , Joris Mulder

In the event that a bacteriological or chemical toxin is intro- duced to a water distribution network, a large population of consumers may become exposed to the contaminant. A contamination event may be poorly predictable dynamic process…

人工智能 · 计算机科学 2014-05-15 M. Ehsan Shafiee , Emily M. Zechman

We conduct a review to assess how the simulation of repeated or recurrent events are planned. For such multivariate time-to-events, it is well established that the underlying mechanism is likely to be complex and to involve in particular…

应用统计 · 统计学 2015-03-20 Juliette Pénichoux , Thierry Moreau , Aurélien Latouche

State-space models (SSM) with Markov switching offer a powerful framework for detecting multiple regimes in time series, analyzing mutual dependence and dynamics within regimes, and asserting transitions between regimes. These models…

统计方法学 · 统计学 2021-06-14 David Degras , Chee-Ming Ting , Hernando Ombao

Many events occur in the world. Some event types are stochastically excited or inhibited---in the sense of having their probabilities elevated or decreased---by patterns in the sequence of previous events. Discovering such patterns can help…

机器学习 · 计算机科学 2017-11-22 Hongyuan Mei , Jason Eisner