Search Results for author: Vernon J. Lawhern

Found 16 papers, 6 papers with code

Scalable Interactive Machine Learning for Future Command and Control

no code implementations9 Feb 2024 Anna Madison, Ellen Novoseller, Vinicius G. Goecks, Benjamin T. Files, Nicholas Waytowich, Alfred Yu, Vernon J. Lawhern, Steven Thurman, Christopher Kelshaw, Kaleb McDowell

Future warfare will require Command and Control (C2) personnel to make decisions at shrinking timescales in complex and potentially ill-defined situations.

Decision Making

Crowd-PrefRL: Preference-Based Reward Learning from Crowds

no code implementations17 Jan 2024 David Chhan, Ellen Novoseller, Vernon J. Lawhern

In this work, we introduce Crowd-PrefRL, a framework for performing preference-based RL leveraging feedback from crowds.

Reinforcement Learning (RL)

Rating-based Reinforcement Learning

no code implementations30 Jul 2023 Devin White, Mingkang Wu, Ellen Novoseller, Vernon J. Lawhern, Nicholas Waytowich, Yongcan Cao

This paper develops a novel rating-based reinforcement learning approach that uses human ratings to obtain human guidance in reinforcement learning.

reinforcement-learning

Decoding Neural Activity to Assess Individual Latent State in Ecologically Valid Contexts

no code implementations18 Apr 2023 Stephen M. Gordon, Jonathan R. McDaniel, Kevin W. King, Vernon J. Lawhern, Jonathan Touryan

Improving our understanding of when and how specific patterns of neural activity manifest in ecologically valid scenarios would provide validation for laboratory-based approaches that study similar neural phenomena in isolation and meaningful insight into the latent states that occur during complex tasks.

Brain Computer Interface Domain Generalization +1

Imitation Learning with Human Eye Gaze via Multi-Objective Prediction

1 code implementation25 Feb 2021 Ravi Kumar Thakur, MD-Nazmus Samin Sunbeam, Vinicius G. Goecks, Ellen Novoseller, Ritwik Bera, Vernon J. Lawhern, Gregory M. Gremillion, John Valasek, Nicholas R. Waytowich

In this work, we propose Gaze Regularized Imitation Learning (GRIL), a novel context-aware, imitation learning architecture that learns concurrently from both human demonstrations and eye gaze to solve tasks where visual attention provides important context.

Continuous Control Imitation Learning +4

Integrating Behavior Cloning and Reinforcement Learning for Improved Performance in Dense and Sparse Reward Environments

no code implementations9 Oct 2019 Vinicius G. Goecks, Gregory M. Gremillion, Vernon J. Lawhern, John Valasek, Nicholas R. Waytowich

However, it is currently unclear how to efficiently update that policy using reinforcement learning as these approaches are inherently optimizing different objective functions.

Q-Learning reinforcement-learning +1

Decoding P300 Variability using Convolutional Neural Networks

1 code implementation Frontiers in Human Neuroscience 2019 Amelia J. Solon, Vernon J. Lawhern, Jonathan Touryan, Jonathan R. McDaniel, Anthony J. Ries, Stephen M. Gordon

Deep convolutional neural networks (CNN) have previously been shown to be useful tools for signal decoding and analysis in a variety of complex domains, such as image processing and speech recognition.

EEG Eeg Decoding +2

Efficiently Combining Human Demonstrations and Interventions for Safe Training of Autonomous Systems in Real-Time

1 code implementation26 Oct 2018 Vinicius G. Goecks, Gregory M. Gremillion, Vernon J. Lawhern, John Valasek, Nicholas R. Waytowich

This paper investigates how to utilize different forms of human interaction to safely train autonomous systems in real-time by learning from both human demonstrations and interventions.

Imitation Learning

Cycle-of-Learning for Autonomous Systems from Human Interaction

1 code implementation28 Aug 2018 Nicholas R. Waytowich, Vinicius G. Goecks, Vernon J. Lawhern

We discuss different types of human-robot interaction paradigms in the context of training end-to-end reinforcement learning algorithms.

reinforcement-learning Reinforcement Learning (RL)

Offline EEG-Based Driver Drowsiness Estimation Using Enhanced Batch-Mode Active Learning (EBMAL) for Regression

no code implementations12 May 2018 Dongrui Wu, Vernon J. Lawhern, Stephen Gordon, Brent J. Lance, Chin-Teng Lin

There are many important regression problems in real-world brain-computer interface (BCI) applications, e. g., driver drowsiness estimation from EEG signals.

Active Learning Brain Computer Interface +2

EEG-Based User Reaction Time Estimation Using Riemannian Geometry Features

no code implementations27 Apr 2017 Dongrui Wu, Brent J. Lance, Vernon J. Lawhern, Stephen Gordon, Tzyy-Ping Jung, Chin-Teng Lin

Riemannian geometry has been successfully used in many brain-computer interface (BCI) classification problems and demonstrated superior performance.

Brain Computer Interface EEG +1

Switching EEG Headsets Made Easy: Reducing Offline Calibration Effort Using Active Weighted Adaptation Regularization

no code implementations9 Feb 2017 Dongrui Wu, Vernon J. Lawhern, W. David Hairston, Brent J. Lance

wAR makes use of labeled data from the previous headset and handles class-imbalance, and active learning selects the most informative samples from the new headset to label.

Active Learning Brain Computer Interface +4

Driver Drowsiness Estimation from EEG Signals Using Online Weighted Adaptation Regularization for Regression (OwARR)

no code implementations9 Feb 2017 Dongrui Wu, Vernon J. Lawhern, Stephen Gordon, Brent J. Lance, Chin-Teng Lin

By integrating fuzzy sets with domain adaptation, we propose a novel online weighted adaptation regularization for regression (OwARR) algorithm to reduce the amount of subject-specific calibration data, and also a source domain selection (SDS) approach to save about half of the computational cost of OwARR.

Domain Adaptation EEG +2

EEGNet: A Compact Convolutional Network for EEG-based Brain-Computer Interfaces

9 code implementations23 Nov 2016 Vernon J. Lawhern, Amelia J. Solon, Nicholas R. Waytowich, Stephen M. Gordon, Chou P. Hung, Brent J. Lance

We introduce the use of depthwise and separable convolutions to construct an EEG-specific model which encapsulates well-known EEG feature extraction concepts for BCI.

EEG Speech Recognition

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