Search Results for author: Subhrakanti Dey

Found 14 papers, 0 papers with code

Policy Gradient-based Model Free Optimal LQG Control with a Probabilistic Risk Constraint

no code implementations25 Mar 2024 Arunava Naha, Subhrakanti Dey

In this paper, we investigate a model-free optimal control design that minimizes an infinite horizon average expected quadratic cost of states and control actions subject to a probabilistic risk or chance constraint using input-output data.

Model Predictive Control

Distributed Average Consensus via Noisy and Non-Coherent Over-the-Air Aggregation

no code implementations11 Mar 2024 Huiwen Yang, Xiaomeng Chen, Lingying Huang, Subhrakanti Dey, Ling Shi

Over-the-air aggregation has attracted widespread attention for its potential advantages in task-oriented applications, such as distributed sensing, learning, and consensus.

An Efficient Distributed Nash Equilibrium Seeking with Compressed and Event-triggered Communication

no code implementations23 Nov 2023 Xiaomeng Chen, Wei Huo, Yuchi Wu, Subhrakanti Dey, Ling Shi

We demonstrate that SETC-DNES guarantees linear convergence to the NE while achieving even greater reductions in communication costs compared to ETC-DNES.

Over-the-air Federated Policy Gradient

no code implementations25 Oct 2023 Huiwen Yang, Lingying Huang, Subhrakanti Dey, Ling Shi

In recent years, over-the-air aggregation has been widely considered in large-scale distributed learning, optimization, and sensing.

FedZeN: Towards superlinear zeroth-order federated learning via incremental Hessian estimation

no code implementations29 Sep 2023 Alessio Maritan, Subhrakanti Dey, Luca Schenato

Federated learning is a distributed learning framework that allows a set of clients to collaboratively train a model under the orchestration of a central server, without sharing raw data samples.

Federated Learning Privacy Preserving

Deterministic policy gradient based optimal control with probabilistic constraints

no code implementations25 May 2023 Arunava Naha, Subhrakanti Dey

Two strategies are employed to manage the probabilistic constraint in scenarios of known and unknown system models.

Model Predictive Control reinforcement-learning +1

Network-GIANT: Fully distributed Newton-type optimization via harmonic Hessian consensus

no code implementations13 May 2023 Alessio Maritan, Ganesh Sharma, Luca Schenato, Subhrakanti Dey

This paper considers the problem of distributed multi-agent learning, where the global aim is to minimize a sum of local objective (empirical loss) functions through local optimization and information exchange between neighbouring nodes.

Distributed Optimization Federated Learning +1

LQG Control Over SWIPT-enabled Wireless Communication Network

no code implementations27 Mar 2023 Huiwen Yang, Lingying Huang, Yuzhe Li, Subhrakanti Dey, Ling Shi

In this paper, we consider using simultaneous wireless information and power transfer (SWIPT) to recharge the sensor in the LQG control, which provides a new approach to prolonging the network lifetime.

A Differential Private Method for Distributed Optimization in Directed Networks via State Decomposition

no code implementations9 Jul 2021 Xiaomeng Chen, Lingying Huang, Lidong He, Subhrakanti Dey, Ling Shi

For privacy preservation, we propose a novel state-decomposition based gradient tracking approach (SD-Push-Pull) for distributed optimzation over directed networks that preserves differential privacy, which is a strong notion that protects agents' privacy against an adversary with arbitrary auxiliary information.

Distributed Optimization

Transmission Power Allocation for Remote Estimation with Multi-packet Reception Capabilities

no code implementations29 Jan 2021 Matthias Pezzutto, Luca Schenato, Subhrakanti Dey

In this paper we consider the problem of transmission power allocation for remote estimation of a dynamical system in the case where the estimator is able to simultaneously receive packets from multiple interfering sensors, as it is possible e. g. with the latest wireless technologies such as 5G and WiFi.

Quickest Detection of Deception Attacks in Networked Control Systems with Physical Watermarking

no code implementations5 Jan 2021 Arunava Naha, Andre Teixeira, Anders Ahlen, Subhrakanti Dey

An independent and identically distributed watermarking signal is added to the optimal linear quadratic Gaussian (LQG) control inputs, and a cumulative sum (CUSUM) test is carried out using the joint distribution of the innovation signal and the watermarking signal for quickest attack detection.

Optimization and Control

Privacy-Preserving Push-sum Average Consensus via State Decomposition

no code implementations25 Sep 2020 Xiaomeng Chen, Lingying Huang, Kemi Ding, Subhrakanti Dey, Ling Shi

That is to say, only the exchanged substate would be visible to an adversary, preventing the initial state information from leakage.

Privacy Preserving

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