Search Results for author: Nicholas Zolman

Found 4 papers, 3 papers with code

SINDy-RL: Interpretable and Efficient Model-Based Reinforcement Learning

1 code implementation14 Mar 2024 Nicholas Zolman, Urban Fasel, J. Nathan Kutz, Steven L. Brunton

Deep reinforcement learning (DRL) has shown significant promise for uncovering sophisticated control policies that interact in environments with complicated dynamics, such as stabilizing the magnetohydrodynamics of a tokamak fusion reactor or minimizing the drag force exerted on an object in a fluid flow.

Dictionary Learning Model-based Reinforcement Learning +1

A Unified Framework to Enforce, Discover, and Promote Symmetry in Machine Learning

no code implementations1 Nov 2023 Samuel E. Otto, Nicholas Zolman, J. Nathan Kutz, Steven L. Brunton

In this paper, we provide a unifying theoretical and methodological framework for incorporating symmetry into machine learning models in three ways: 1. enforcing known symmetry when training a model; 2. discovering unknown symmetries of a given model or data set; and 3. promoting symmetry during training by learning a model that breaks symmetries within a user-specified group of candidates when there is sufficient evidence in the data.

Image Classification

Learning to Predict 3D Rotational Dynamics from Images of a Rigid Body with Unknown Mass Distribution

2 code implementations24 Aug 2023 Justice Mason, Christine Allen-Blanchette, Nicholas Zolman, Elizabeth Davison, Naomi Ehrich Leonard

In many real-world settings, image observations of freely rotating 3D rigid bodies may be available when low-dimensional measurements are not.

Learning Interpretable Dynamics from Images of a Freely Rotating 3D Rigid Body

1 code implementation23 Sep 2022 Justice Mason, Christine Allen-Blanchette, Nicholas Zolman, Elizabeth Davison, Naomi Leonard

In many real-world settings, image observations of freely rotating 3D rigid bodies, such as satellites, may be available when low-dimensional measurements are not.

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