Search Results for author: Konstantinos Gatsis

Found 11 papers, 4 papers with code

NLBAC: A Neural Ordinary Differential Equations-based Framework for Stable and Safe Reinforcement Learning

2 code implementations23 Jan 2024 Liqun Zhao, Keyan Miao, Konstantinos Gatsis, Antonis Papachristodoulou

Reinforcement learning (RL) excels in applications such as video games and robotics, but ensuring safety and stability remains challenging when using RL to control real-world systems where using model-free algorithms suffering from low sample efficiency might be prohibitive.

Reinforcement Learning (RL) Safe Reinforcement Learning

Scalable Forward Reachability Analysis of Multi-Agent Systems with Neural Network Controllers

no code implementations7 Sep 2023 Oliver Gates, Matthew Newton, Konstantinos Gatsis

This paper addresses the problem of finding overapproximations of forward reachable sets for discrete-time uncertain multi-agent systems with distributed NNC architectures.

Learning Robust State Observers using Neural ODEs (longer version)

1 code implementation1 Dec 2022 Keyan Miao, Konstantinos Gatsis

Relying on recent research results on Neural ODEs, this paper presents a methodology for the design of state observers for nonlinear systems based on Neural ODEs, learning Luenberger-like observers and their nonlinear extension (Kazantzis-Kravaris-Luenberger (KKL) observers) for systems with partially-known nonlinear dynamics and fully unknown nonlinear dynamics, respectively.

Large-Scale Graph Reinforcement Learning in Wireless Control Systems

no code implementations24 Jan 2022 Vinicius Lima, Mark Eisen, Konstantinos Gatsis, Alejandro Ribeiro

As the number of learnable parameters in a neural network grows with the size of the input signal, deep reinforcement learning may fail to scale, limiting the immediate generalization of such scheduling and resource allocation policies to large-scale systems.

reinforcement-learning Reinforcement Learning (RL) +1

Federated Reinforcement Learning at the Edge

no code implementations11 Dec 2021 Konstantinos Gatsis

Modern cyber-physical architectures use data collected from systems at different physical locations to learn appropriate behaviors and adapt to uncertain environments.

reinforcement-learning Reinforcement Learning (RL) +2

Linear Regression over Networks with Communication Guarantees

no code implementations6 Mar 2021 Konstantinos Gatsis

A key functionality of emerging connected autonomous systems such as smart cities, smart transportation systems, and the industrial Internet-of-Things, is the ability to process and learn from data collected at different physical locations.

Federated Learning Informativeness +1

Adaptive Scheduling for Machine Learning Tasks over Networks

no code implementations25 Jan 2021 Konstantinos Gatsis

A key functionality of emerging connected autonomous systems such as smart transportation systems, smart cities, and the industrial Internet-of-Things, is the ability to process and learn from data collected at different physical locations.

BIG-bench Machine Learning Federated Learning +3

Model-Free Design of Control Systems over Wireless Fading Channels

no code implementations3 Sep 2020 Vinicius Lima, Mark Eisen, Konstantinos Gatsis, Alejandro Ribeiro

Wireless control systems replace traditional wired communication with wireless networks to exchange information between actuators, plants and sensors in a control system.

Statistical Learning for Analysis of Networked Control Systems over Unknown Channels

no code implementations8 Nov 2019 Konstantinos Gatsis, George J. Pappas

In this regard our work is the first to characterize the amount of channel modeling that is required to answer such a question.

Cloud-based Quadratic Optimization with Partially Homomorphic Encryption

1 code implementation7 Sep 2018 Andreea B. Alexandru, Konstantinos Gatsis, Yasser Shoukry, Sanjit A. Seshia, Paulo Tabuada, George J. Pappas

The development of large-scale distributed control systems has led to the outsourcing of costly computations to cloud-computing platforms, as well as to concerns about privacy of the collected sensitive data.

Optimization and Control Cryptography and Security Systems and Control

Cannot find the paper you are looking for? You can Submit a new open access paper.