69 citations · 278 across the 38 of their papers we have counts for
45 papers
Passivity, No-Regret, and Convergent Learning in Contractive Games
Hassan Abdelraouf, Georgios Piliouras, Jeff S. Shamma
We investigate the interplay between passivity, no-regret, and convergence in contractive games for various learning dynamic models and their higher-order variants. Our setting is…
Constrained Optimization From a Control Perspective via Feedback Linearization
Runyu Zhang, Arvind Raghunathan, Jeff Shamma +1
Tools from control and dynamical systems have proven valuable for analyzing and developing optimization methods. In this paper, we establish rigorous theoretical foundations for us…
Distributed Learning Dynamics Converging to the Core of -Matchings
Aya Hamed, Jeff S. Shamma
-Matching is a special case of matching problems where nodes can join multiple matchings with the degree of each node constrained by an upper bound, the node's -value. The co…
Equilibrium Selection for Multi-agent Reinforcement Learning: A Unified Framework
Runyu Zhang, Gioele Zardini, Asuman Ozdaglar +2
While multi-agent reinforcement learning (MARL) has produced numerous algorithms that converge to Nash or related equilibria, such equilibria are often non-unique and can exhibit w…
Polynomial Lyapunov Functions and Invariant Sets from a New Hierarchy of Quadratic Lyapunov Functions for LTV Systems
Hassan Abdelraouf, Eric Feron, Jeff S. Shamma
We introduce a new class of quadratic functions based on a hierarchy of linear time-varying (LTV) dynamical systems. These quadratic functions in the higher order space can be also…
Distributed Learning Dynamics for Coalitional Games
Aya Hamed, Jeff S. Shamma
In the framework of transferable utility coalitional games, a scoring (characteristic) function determines the value of any subset/coalition of agents. Agents decide on both which…
Non-asymptotic System Identification for Linear Systems with Nonlinear Policies
Yingying Li, Tianpeng Zhang, Subhro Das +2
This paper considers a single-trajectory system identification problem for linear systems under general nonlinear and/or time-varying policies with i.i.d. random excitation noises.…
Higher-Order Uncoupled Dynamics Do Not Lead to Nash Equilibrium -- Except When They Do
Sarah A. Toonsi, Jeff S. Shamma
The framework of multi-agent learning explores the dynamics of how individual agent strategies evolve in response to the evolving strategies of other agents. Of particular interest…
Algebraic Lyapunov Functions for Homogeneous Dynamic Systems
Hassan Abdelraouf, Eric Feron, Jeff Shamma
A method for constructing homogeneous Lyapunov functions of degree 1 from polynomial invariant sets is presented for linear time varying systems, homogeneous dynamic systems and th…
Online switching control with stability and regret guarantees
Yingying Li, James A. Preiss, Na Li +3
This paper considers online switching control with a finite candidate controller pool, an unknown dynamical system, and unknown cost functions. The candidate controllers can be uns…
Can Competition Outperform Collaboration? The Role of Misbehaving Agents
Luca Ballotta, Giacomo Como, Jeff S. Shamma +1
We investigate a novel approach to resilient distributed optimization with quadratic costs in a multi-agent system prone to unexpected events that make some agents misbehave. In co…
Competition-Based Resilience in Distributed Quadratic Optimization
Luca Ballotta, Giacomo Como, Jeff S. Shamma +1
This paper proposes a novel approach to resilient distributed optimization with quadratic costs in a networked control system (e.g., wireless sensor network, power grid, robotic te…
Multi-sided Matching for the Association of Space-Air-Ground Integrated Systems
Abdoul Karim A. H. Saliah, Doha Hamza, Hajar El Hammouti +2
Space-air-ground integrated networks (SAGINs) will play a pivotal role in 6G communication systems. They are considered a promising technology for enhancing network capacity in den…
Safe Adaptive Learning-based Control for Constrained Linear Quadratic Regulators with Regret Guarantees
Yingying Li, Subhro Das, Jeff Shamma +1
We study the adaptive control of an unknown linear system with a quadratic cost function subject to safety constraints on both the states and actions. The challenges of this proble…
Point-to-Point Communication in Integrated Satellite-Aerial Networks: State-of-the-art and Future Challenges
Nasir Saeed, Heba Almorad, Hayssam Dahrouj +3
This paper overviews point-to-point (P2P) links for integrated satellite-aerial networks, which are envisioned to be among the key enablers of the sixth-generation (6G) of wireless…
RISCuer: A Reliable Multi-UAV Search and Rescue Testbed
Mohamed Abdelkader, Usman A. Fiaz, Noureddine Toumi +2
We present the Robotics Intelligent Systems & Control (RISC) Lab multiagent testbed for reliable search and rescue and aerial transport in outdoor environments. The system consists…
The Optimal and the Greedy: Drone Association and Positioning Schemes for Internet of UAVs
Hajar El Hammouti, Doha Hamza, Basem Shihada +2
This work considers the deployment of unmanned aerial vehicles (UAVs) over a predefined area to serve a number of ground users. Due to the heterogeneous nature of the network,the U…
Network Effects on Robustness of Dynamic Systems
Ketan Savla, Jeff S. Shamma, Munther A. Dahleh
We review selected results related to robustness of networked systems in finite and asymptotically large size regimes, under static and dynamical settings. In the static setting, w…
Smart Jammer and LTE Network Strategies in An Infinite-Horizon Zero-Sum Repeated Game with Asymmetric and Incomplete Information
Farhan M. Aziz, Lichun Li, Jeff S. Shamma +1
LTE/LTE-Advanced networks are known to be vulnerable to denial-of-service and loss-of-service attacks from smart jammers. In this article, the interaction between a smart jammer an…
Herdability of Linear Systems Based on Sign Patterns and Graph Structures
Sebastian F Ruf, Magnus Egerstedt, Jeff S. Shamma
We consider the notion of herdability, a set-based reachability condition, which asks whether the state of a system can be controlled to be element-wise larger than a non-negative…
Payoff Dynamics Model and Evolutionary Dynamics Model: Feedback and Convergence to Equilibria
Shinkyu Park, Nuno C. Martins, Jeff S. Shamma
This tutorial article puts forth a framework to analyze the noncooperative strategic interactions among the members of a large population of bounded rationality agents. Our approac…
usBot: A Modular Robotic Testbed for Programmable Self-Assembly
Usman A. Fiaz, Jeff S. Shamma
We present the design, characterization, and experimental results for a new modular robotic system for programmable self-assembly. The proposed system uses the Hybrid Cube Model (H…
Infrastructure-free Localization of Aerial Robots with Ultrawideband Sensors
Samet Guler, Mohamed Abdelkader, Jeff S. Shamma
Robots in a swarm take advantage of a motion capture system or GPS sensors to obtain their global position. However, motion capture systems are environment-dependent and GPS sensor…
Herding Positive, Complex Networks
Sebastian F. Ruf, Magnus Egersted, Jeff S. Shamma
The problem of controlling complex networks is of interest to disciplines ranging from biology to swarm robotics. However, controllability can be too strict a condition, failing to…