Joey Hejna
14 papers · 2023–2025 · 6 venues · across top CS/AI venues
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Achievements
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π£ Hot Topic Early Bird π Conference Polyglot Β· Silver π Interdisciplinary Bridge Β· Silver πΊοΈ Taxonomy Completionist (29) π€ Dynamic Duo (10)
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Grand Slam
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Triple Crown
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Keyword Champion
π€
Dynamic Duo
(10)
β‘
Prolific Year Β· Productive
β
The Questioner
π
Century Club Β· Bronze
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Renaissance Researcher
(5)
ποΈ
Keyword Collector
(67)
Top co-authors
Research topics
Machine Learning
(10)
Artificial Intelligence
(8)
Core AI
(6)
Learning Types Β· Machine Learning
(6)
Reinforcement Learning
(5)
Robotics
(4)
Core Methods
(4)
Application Areas
(3)
Capabilities
(3)
Learning Paradigms
(3)
Methods
(3)
Deep Learning
(2)
Applications
(2)
Learning Types Β· Deep Learning
(2)
Interdisciplinary
(1)
Keywords
imitation learning
(4)
offline reinforcement learning
(3)
data curation
(2)
reinforcement learning
(2)
robot manipulation
(2)
supervised learning
(1)
direct preference optimization
(1)
policy optimization
(1)
preference learning
(1)
generalization ability
(1)
sequential decision making
(1)
in-context learning
(1)
maximum entropy
(1)
policy learning
(1)
mutual information
(1)
reinforcement learning from human feedback
(1)
value function
(1)
continuous control
(1)
domain generalization
(1)
zero-shot learning
(1)
Papers
Aligning Language Models with Demonstrated Feedback
ICLR 2025
Data Retrieval with Importance Weights for Few-Shot Imitation Learning
CoRL 2025
Robot Data Curation with Mutual Information Estimators
RSS 2025
Vision Language Models are In-Context Value Learners
ICLR 2025
Contrastive Preference Learning: Learning from Human Feedback without Reinforcement Learning
ICLR 2024
DROID: A Large-Scale In-The-Wild Robot Manipulation Dataset
RSS 2024
Octo: An Open-Source Generalist Robot Policy
RSS 2024
ReMix: Optimizing Data Mixtures for Large Scale Imitation Learning
CoRL 2024
Scaling Laws for Reward Model Overoptimization in Direct Alignment Algorithms
NeurIPS 2024
So You Think You Can Scale Up Autonomous Robot Data Collection?
CoRL 2024
Distance Weighted Supervised Learning for Offline Interaction Data
ICML 2023
Extreme Q-Learning: MaxEnt RL without Entropy
ICLR 2023
Improving Long-Horizon Imitation through Instruction Prediction
AAAI 2023
Inverse Preference Learning: Preference-based RL without a Reward Function
NeurIPS 2023