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We are motivated to approximate solutions of a Hodgkin-Huxley type model with implicit methods. As a representative we chose a psychiatric disease model containing stable as well as chaotic cycling behaviour. We analyze the bifurcation…

数值分析 · 数学 2024-06-19 Juergen Geiser , Dennis Ogiermann

In evolving complex systems such as air traffic and social organizations, collective effects emerge from their many components' dynamic interactions. While the dynamic interactions can be represented by temporal networks with nodes and…

社会与信息网络 · 计算机科学 2017-09-21 Tiago P. Peixoto , Martin Rosvall

Models that can simulate how environments change in response to actions can be used by agents to plan and act efficiently. We improve on previous environment simulators from high-dimensional pixel observations by introducing recurrent…

人工智能 · 计算机科学 2017-04-20 Silvia Chiappa , Sébastien Racaniere , Daan Wierstra , Shakir Mohamed

In this paper, we develop an agent-based version of the Diamond search equilibrium model - also called Coconut Model. In this model, agents are faced with production decisions that have to be evaluated based on their expectations about the…

经济学 · 定量金融 2016-12-02 Sven Banisch , Eckehard Olbrich

This study presents the approach to analyzing the evolution of an arbitrary complex system whose behavior is characterized by a set of different time-dependent factors. The key requirement for these factors is only that they must contain an…

数据分析、统计与概率 · 物理学 2020-12-01 Anatolii V. Mokshin , Vladimir V. Mokshin , Diana A. Mirziyarova

This paper initiates a study into the century-old issue of market predictability from the perspective of computational complexity. We develop a simple agent-based model for a stock market where the agents are traders equipped with simple…

计算工程、金融与科学 · 计算机科学 2007-05-23 James Aspnes , David F. Fischer , Michael J. Fischer , Ming-Yang Kao , Alok Kumar

An agent-based model with interacting low frequency liquidity takers inter-mediated by high-frequency liquidity providers acting collectively as market makers can be used to provide realistic simulated price impact curves. This is possible…

交易与市场微观结构 · 定量金融 2021-08-23 Ivan Jericevich , Patrick Chang , Tim Gebbie

Time series of counts arise in a variety of forecasting applications, for which traditional models are generally inappropriate. This paper introduces a hierarchical Bayesian formulation applicable to count time series that can easily…

机器学习 · 统计学 2014-05-16 Nicolas Chapados

Matrix-variate data of high dimensions are frequently observed in finance and economics, spanning extended time periods, such as the long-term data on international trade flows among numerous countries. To address potential structural…

统计方法学 · 统计学 2024-04-03 Bin Chen , Elynn Y. Chen , Stevenson Bolivar , Rong Chen

This article presents an identification methodology to capture general relationships, with application to piecewise nonlinear approximations of model predictive control for constrained (non)linear systems. The mathematical formulation…

最优化与控制 · 数学 2017-01-06 Van-Vuong Trinh , Mazen Alamir , Patrick Bonnay

In this work we introduce an approach for modeling and analyzing collective behavior of a group of agents using moments. We represent the group of agents via their distribution and derive a method to estimate the dynamics of the moments. We…

最优化与控制 · 数学 2020-04-30 Silun Zhang , Axel Ringh , Xiaoming Hu , Johan Karlsson

Modeling the complex interactions of systems of particles or agents is a fundamental scientific and mathematical problem that is studied in diverse fields, ranging from physics and biology, to economics and machine learning. In this work,…

机器学习 · 统计学 2020-10-09 Jason Miller , Sui Tang , Ming Zhong , Mauro Maggioni

The method of model averaging has become an important tool to deal with model uncertainty, for example in situations where a large amount of different theories exist, as are common in economics. Model averaging is a natural and formal…

应用统计 · 统计学 2019-02-05 Mark F. J. Steel

Globally operating enterprises selling large and complex products and services often have to deal with situations where variability models are locally developed to take into account the requirements of local markets. For example, cars sold…

人工智能 · 计算机科学 2021-02-16 Mathias Uta , Alexander Felfernig , Gottfried Schenner , Johannes Spoecklberger

Despite their simplicity, linear models perform well at time series forecasting, even when pitted against deeper and more expensive models. A number of variations to the linear model have been proposed, often including some form of feature…

机器学习 · 计算机科学 2024-03-26 William Toner , Luke Darlow

Time series modelling is essential for solving tasks such as predictive maintenance, quality control and optimisation. Deep learning is widely used for solving such problems. When managing complex manufacturing process with neural networks,…

机器学习 · 计算机科学 2020-11-17 Alexey Kurochkin

We provide a numerical study of the macroscopic model of [3] derived from an agent-based model for a system of particles interacting through a dynamical network of links. Assuming that the network remodelling process is very fast, the…

Modeling and control of agent-based models is twice cursed by the dimensionality of the problem, as both the number of agents and their state space dimension can be large. Even though the computational barrier posed by a large ensemble of…

最优化与控制 · 数学 2025-07-16 Giacomo Albi , Sara Bicego , Dante Kalise

An overview of the recursive equations based models and their applications in simulation based analysis and optimization of queueing systems is given. These models provide a variety of systems with a convenient and unified representation in…

数值分析 · 数学 2012-10-31 Nikolai K. Krivulin

We study two stylized, multi-agent models aimed at investing a limited, indivisible resource in public transportation. In the first model, we face the decision of which potential stops to open along a (e.g., bus) path, given agents' travel…

计算机科学与博弈论 · 计算机科学 2026-02-04 Martin Bullinger , Edith Elkind , Kassian Köck