Search Results for author: Joseph E. Gaudio

Found 8 papers, 0 papers with code

Online Algorithms and Policies Using Adaptive and Machine Learning Approaches

no code implementations13 May 2021 Anuradha M. Annaswamy, Anubhav Guha, Yingnan Cui, Sunbochen Tang, Peter A. Fisher, Joseph E. Gaudio

AC-RL controllers are proposed for both classes of systems and shown to lead to online policies that guarantee stability using a high-order tuner and accommodate parametric uncertainties and magnitude limits on the input.

BIG-bench Machine Learning Reinforcement Learning (RL)

New Algorithms for Discrete-Time Parameter Estimation

no code implementations30 Mar 2021 Yingnan Cui, Joseph E. Gaudio, Anuradha M. Annaswamy

We propose two algorithms for discrete-time parameter estimation, one for time-varying parameters under persistent excitation (PE) condition, another for constant parameters under no PE condition.

A High-order Tuner for Accelerated Learning and Control

no code implementations23 Mar 2021 Spencer McDonald, Yingnan Cui, Joseph E. Gaudio, Anuradha M. Annaswamy

Gradient-descent based iterative algorithms pervade a variety of problems in estimation, prediction, learning, control, and optimization.

Decision Making Vocal Bursts Intensity Prediction

Accurate Parameter Estimation for Risk-aware Autonomous Systems

no code implementations23 Jun 2020 Arnab Sarker, Peter Fisher, Joseph E. Gaudio, Anuradha M. Annaswamy

Experiments are provided to support all theoretical derivations, which show that the spectral lines-based approach outperforms the Gaussian noise-based method when unmodeled dynamics are present, in terms of both parameter estimation error and Regret obtained using the parameter estimates with a Linear Quadratic Regulator in feedback.

BIG-bench Machine Learning

Accelerated Learning with Robustness to Adversarial Regressors

no code implementations4 May 2020 Joseph E. Gaudio, Anuradha M. Annaswamy, José M. Moreu, Michael A. Bolender, Travis E. Gibson

Recently, connections with variational approaches have led to the derivation of new learning algorithms with accelerated learning guarantees.

Parameter Estimation in Adaptive Control of Time-Varying Systems Under a Range of Excitation Conditions

no code implementations10 Nov 2019 Joseph E. Gaudio, Anuradha M. Annaswamy, Eugene Lavretsky, Michael A. Bolender

The main feature of this algorithm is a matrix of time-varying learning rates, which enables parameter estimation error trajectories to tend exponentially fast towards a compact set whenever excitation conditions are satisfied.

Connections Between Adaptive Control and Optimization in Machine Learning

no code implementations11 Apr 2019 Joseph E. Gaudio, Travis E. Gibson, Anuradha M. Annaswamy, Michael A. Bolender, Eugene Lavretsky

This paper demonstrates many immediate connections between adaptive control and optimization methods commonly employed in machine learning.

BIG-bench Machine Learning

Provably Correct Learning Algorithms in the Presence of Time-Varying Features Using a Variational Perspective

no code implementations12 Mar 2019 Joseph E. Gaudio, Travis E. Gibson, Anuradha M. Annaswamy, Michael A. Bolender

This variational perspective includes higher order learning concepts and normalization, both of which stem from adaptive control, and allows stability to be established for dynamical machine learning problems where time-varying features are present.

BIG-bench Machine Learning

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