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Caseworkers in foster care systems match waiting children to adoptive homes. We use dynamic matching market design to characterize a class of mechanisms that incentivize expedient matches that homes can accept or decline. We design…

理论经济学 · 经济学 2025-08-18 Terence Highsmith

A dynamical model of an ecological community is analyzed within a "mean-field approximation" in which one of the species interacts with the combination of all of the other species in the community. Within this approximation the model may be…

适应与自组织系统 · 物理学 2009-10-31 Alan McKane , David Alonso , Ricard V. Sole

Stationary states of stochastic models, which have $N$ states per site, in matrix product form are considered. First we give a necessary condition for the existence of a finite $M$-dimensional matrix product state for any ${N,M}$. Second,…

统计力学 · 物理学 2007-05-23 Yasuhiro Hieida , Tomohiro Sasamoto

The stable matching problem is a prototype model in economics and social sciences where agents act selfishly to optimize their own satisfaction, subject to mutually conflicting constraints. A stable matching is a pairing of adjacent…

无序系统与神经网络 · 物理学 2007-05-23 Stephan Mertens

Spatial pattern formation is a key feature of many natural systems in physics, chemistry and biology. The essential theoretical issue in understanding pattern formation is to explain how a spatially homogeneous initial state can undergo…

斑图形成与孤子 · 物理学 2015-06-04 Timothy Killingback , Gregory Loftus , Bala Sundaram

A dynamic bipartite matching model is given by a bipartite matching graph which determines the possible matchings between the various types of supply and demand items. Both supply and demand items arrive to the system according to a…

离散数学 · 计算机科学 2020-09-11 Arnaud Cadas , Ana Bušić , Josu Doncel

In this paper we investigate to which extent a very simple and natural "reachability as deducibility" approach, originated in the research in formal methods in security, is applicable to the automated verification of large classes of…

计算机科学中的逻辑 · 计算机科学 2010-11-30 Alexei Lisitsa

We introduce a new paradigm for generative modeling built on Continuous Normalizing Flows (CNFs), allowing us to train CNFs at unprecedented scale. Specifically, we present the notion of Flow Matching (FM), a simulation-free approach for…

机器学习 · 计算机科学 2023-02-09 Yaron Lipman , Ricky T. Q. Chen , Heli Ben-Hamu , Maximilian Nickel , Matt Le

This paper introduces a unified framework for stable matching, which nests the traditional definition of stable matching in finite markets and the continuum definition of stable matching from Azevedo and Leshno (2016) as special cases.…

理论经济学 · 经济学 2022-05-26 Nick Arnosti

We propose a model based on coupled multiplicative stochastic processes to understand the dynamics of competing species in an ecosystem. This process can be conveniently described by a Fokker-Planck equation. We provide an analytical…

种群与进化 · 定量生物学 2012-03-13 Simone Pigolotti , Alessandro Flammini , Amos Maritan

We incorporate discrete and continuous time Markov processes as building blocks into probabilistic graphical models with latent and observed variables. We introduce the automatic Backward Filtering Forward Guiding (BFFG) paradigm (Mider et…

统计计算 · 统计学 2022-11-02 Frank van der Meulen , Moritz Schauer

In this paper, we address the optimal control of stochastic matching models on general graphs and single arrivals having fixed arrival rates, as introduced in \cite{MaiMoy16}. On the `N-shaped' graph, by following the dynamic programming…

最优化与控制 · 数学 2024-02-06 Loïc Jean , Pascal Moyal

For a many-to-one matching model, we study the matchings obtained through the restabilization of stable matchings that had been disrupted by a change in the population. We include a simple representation of the stable matching obtained in…

理论经济学 · 经济学 2022-02-28 Millán Guerra Beatriz Alejandra

Car-following behavior is fundamental to traffic flow theory, yet traditional models often fail to capture the stochasticity of naturalistic driving. This paper introduces a new car-following modeling category called the empirical…

系统与控制 · 电气工程与系统科学 2026-03-31 Sungyong Chung , Yanlin Zhang , Nachuan Li , Dana Monzer , Alireza Talebpour

We introduce Statistical Flow Matching (SFM), a novel and mathematically rigorous flow-matching framework on the manifold of parameterized probability measures inspired by the results from information geometry. We demonstrate the…

机器学习 · 计算机科学 2025-11-26 Chaoran Cheng , Jiahan Li , Jian Peng , Ge Liu

In many applications, for example when computing statistics of fast subsystems in a multiscale setting, we wish to find the stationary distributions of systems of continuous time Markov chains. Here we present a class of models that appears…

概率论 · 数学 2016-09-20 David F. Anderson , Simon L. Cotter

We consider a model of stable edge sets (``matchings'') in a bipartite graph $G=(V,E)$ in which the preferences for vertices of one side (``firms'') are given via choice functions subject to standard axioms of consistency, substitutability…

组合数学 · 数学 2025-01-28 Alexander V. Karzanov

Conditional particle filters (CPFs) are powerful smoothing algorithms for general nonlinear/non-Gaussian hidden Markov models. However, CPFs can be inefficient or difficult to apply with diffuse initial distributions, which are common in…

统计计算 · 统计学 2020-11-23 Santeri Karppinen , Matti Vihola

We study generalizations of online bipartite matching in which each arriving vertex (customer) views a ranked list of offline vertices (products) and matches to (purchases) the first one they deem acceptable. The number of products that the…

数据结构与算法 · 计算机科学 2023-06-27 Brian Brubach , Nathaniel Grammel , Will Ma , Aravind Srinivasan

This paper presents a data-driven model for Linear Time-Invariant (LTI) stochastic systems by sampling from the conditional probability distribution of future outputs given past input-outputs and future inputs. It operates in a fully…

最优化与控制 · 数学 2025-11-27 Jiayun Li , Yilin Mo