35 citations · 66 across the 22 of their papers we have counts for
22 papers
A Minimal Dynamical Model for Incubation-Outbreak Transitions in Social Norm Diffusion
Run Wang, Leonardo Cianfanelli, Giacomo Como +1
In this paper, we introduce a minimal dynamical model for the diffusion of a new social norm, in which individuals transition among three states: non-supporters, silent supporters,…
Forgetting-Factor Regret for Online Zero-Sum Games
Yuhang Liu, Zi'ang Yan, Wenjun Mei +1
This paper studies dynamic equilibrium tracking in online two-player zero-sum games with time-varying convex-concave payoff functions. Existing regret metrics for online saddle-poi…
A Zeroth-order Resilient Algorithm for Distributed Online Optimization against Byzantine Edge Attacks
Yuhang Liu, Wenjun Mei
In this paper, we propose a zeroth-order resilient distributed online algorithm for networks under Byzantine edge attacks. We assume that both the edges attacked by Byzantine adver…
Meritocracy versus Matthew-effect: Two underlying network formation mechanisms of online social platforms
Yuchen Xu, Wenjun Mei, Ge Chen +1
With the rapid development of the internet industry, online social networks have come to play an increasingly significant role in everyday life. In recent years, content-based emer…
Convergence and consensus analysis of a class of best-response opinion dynamics
Yuchen Xu, Yi Han, Chuanzhe Zhang +2
Opinion dynamics aims to understand how individuals' opinions evolve through local interactions. Recently, opinion dynamics have been modeled as network games, where individuals up…
Multidimensional Opinion Dynamics with Heterogeneous Bounded Confidences and Random Interactions
Jiangjiang Cheng, Ge Chen, Wenjun Mei +1
This paper introduces a heterogeneous multidimensional bounded confidence (BC) opinion dynamics with random pairwise interactions, whereby each pair of agents accesses each other's…
Convergence of the Heterogeneous Deffuant-Weisbuch Model: A Complete Proof and Some Extensions
Ge Chen, Wei Su, Wenjun Mei +1
The Deffuant-Weisbuch (DW) model is a well-known bounded-confidence opinion dynamics that has attracted wide interest. Although the heterogeneous DW model has been studied by simul…
Convergence Analysis of Weighted-Median Opinion Dynamics with Prejudice
Ruichang Zhang, Zhixin Liu, Ge Chen +1
The Friedkin-Johnsen (FJ) model introduces prejudice into the opinion evolution and has been successfully validated in many practical scenarios; however, due to its weighted averag…
Modeling, Analysis, and Control of Continuous-Time Weighted-Median Opinion Dynamics
Yi Han, Julien M. Hendrickx, Ge Chen +1
Simple yet predictive mathematical models are essential for mechanistic understanding of opinion evolution in social groups. The weighted-median mechanism has recently been propose…
Evolutionary Games on Networks: Phase Transition, Quasi-equilibrium, and Mathematical Principles
Jiangjiang Cheng, Wenjun Mei, Wei Su +1
The stable cooperation ratio of spatial evolutionary games has been widely studied using simulations or approximate analysis methods. However, sometimes such ``stable'' cooperation…
Convergence, Consensus and Dissensus in the Weighted-Median Opinion Dynamics
Wenjun Mei, Julien M. Hendrickx, Ge Chen +2
Mechanistic and tractable mathematical models play a key role in understanding how social influence shapes public opinions. Recently, a weighted-median mechanism has been proposed…
Structural Balance and Interpersonal Appraisals Dynamics: Beyond All-to-All and Two-Faction Networks
Wenjun Mei, Ge Chen, Noah E. Friedkin +1
Structural balance theory describes stable configurations of topologies of signed interpersonal appraisal networks. Existing models explaining the convergence of appraisal networks…
Assign and Appraise: Achieving Optimal Performance in Collaborative Teams
Elizabeth Y. Huang, Dario Paccagnan, Wenjun Mei +1
Tackling complex team problems requires understanding each team member's skills in order to devise a task assignment maximizing the team performance. This paper proposes a novel qu…
Interplay Between Homophily-Based Appraisal Dynamics and Influence-Based Opinion Dynamics: Modeling and Analysis
Fangzhou Liu, Shaoxuan Cui, Wenjun Mei +2
In social systems, the evolution of interpersonal appraisals and individual opinions are not independent processes but intertwine with each other. Despite extensive studies on both…
Rethinking the Micro-Foundation of Opinion Dynamics: Rich Consequences of the Weighted-Median Mechanism
Wenjun Mei, Francesco Bullo, Ge Chen +2
To identify the main mechanisms underlying complex opinion formation processes in social systems, researchers have long been exploring simple mechanistic mathematical models. Most…
Convergence Properties of the Heterogeneous Deffuant-Weisbuch Model
Ge Chen, Wei Su, Wenjun Mei +1
The Deffuant-Weisbuch (DW) model is a bounded-confidence opinion dynamics model that has attracted much recent interest. Despite its simplicity and appeal, the DW model has proved…
Dynamic Social Balance and Convergent Appraisals via Homophily and Influence Mechanisms
Wenjun Mei, Pedro Cisneros-Velarde, Ge Chen +2
Social balance theory describes allowable and forbidden configurations of the topologies of signed directed social appraisal networks. In this paper, we propose two discrete-time d…
LaSalle Invariance Principle for Discrete-time Dynamical Systems: A Concise and Self-contained Tutorial
Wenjun Mei, Francesco Bullo
LaSalle invariance principle was originally proposed in the 1950's and has become a fundamental mathematical tool in the area of dynamical systems and control. In both theoretical…
Linear Stochastic Approximation Algorithms and Group Consensus over Random Signed Networks: A Technical Report with All Proofs
Ge Chen, Xiaoming Duan, Wenjun Mei +1
This paper studies linear stochastic approximation (SA) algorithms and their application to multi-agent systems in engineering and sociology. As main contribution, we provide neces…
On the Dynamics of Deterministic Epidemic Propagation over Networks
Wenjun Mei, Shadi Mohagheghi, Sandro Zampieri +1
In this work we review a class of deterministic nonlinear models for the propagation of infectious diseases over contact networks with strongly-connected topologies. We consider ne…
Competitive Propagation: Models, Asymptotic Behavior and Multi-stage Games
Wenjun Mei, Francesco Bullo
In this paper we propose a class of propagation models for multiple competing products over a social network. We consider two propagation mechanisms: social conversion and self con…
Dynamic Models of Appraisal Networks Explaining Collective Learning
Wenjun Mei, Noah E. Friedkin, Kyle Lewis +1
This paper proposes models of learning process in teams of individuals who collectively execute a sequence of tasks and whose actions are determined by individual skill levels and…