Articles by Joey Hejna | Synthical

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Articles by Joey Hejna | Synthical

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13

Data Retrieval with Importance Weights for Few-Shot Imitation Learning

1 September 2025 by Amber Xie and others

Robotics, Artificial Intelligence

Scaffolding Dexterous Manipulation with Vision-Language Models

24 June 2025 by Vincent Bakker and others

Open X-Embodiment: Robotic Learning Datasets and RT-X Models

14 May 2025 by Open X-Embodiment Collaboration and others

DROID: A Large-Scale In-The-Wild Robot Manipulation Dataset

22 April 2025 by Alexander Khazatsky and others at

Stanford University

Robot Data Curation with Mutual Information Estimators

22 April 2025 by Joey Hejna and others

Aligning Language Models with Demonstrated Feedback

18 April 2025 by Omar Shaikh and others at

Stanford University

Computation and Language, Human-Computer Interaction

Efficiently Generating Expressive Quadruped Behaviors via Language-Guided Preference Learning

31 March 2025 by Jaden Clark and others

Robotics, Artificial Intelligence

Vision Language Models are In-Context Value Learners

7 November 2024 by Yecheng Jason Ma and others at

Robotics, Artificial Intelligence

Scaling Laws for Reward Model Overoptimization in Direct Alignment Algorithms

5 November 2024 by Rafael Rafailov and others

Machine Learning, Artificial Intelligence

So You Think You Can Scale Up Autonomous Robot Data Collection?

4 November 2024 by Suvir Mirchandani and others

Robotics, Artificial Intelligence

MotIF: Motion Instruction Fine-tuning

16 September 2024 by Minyoung Hwang and others

Robotics, Artificial Intelligence

Re-Mix: Optimizing Data Mixtures for Large Scale Imitation Learning

26 August 2024 by Joey Hejna and others

Robotics, Machine Learning

From r to Q^*: Your Language Model is Secretly a Q-Function

12 August 2024 by Rafael Rafailov and others at

Stanford University

Machine Learning

Show, Don't Tell: Aligning Language Models with Demonstrated Feedback

2 June 2024 by Omar Shaikh and others

Computation and Language, Human-Computer Interaction

Octo: An Open-Source Generalist Robot Policy

26 May 2024 by Octo Model Team and others at

Robotics, Machine Learning

Contrastive Preference Learning: Learning from Human Feedback without RL

30 April 2024 by Joey Hejna and others

Machine Learning, Artificial Intelligence

Inverse Preference Learning: Preference-based RL without a Reward Function

24 November 2023 by Joey Hejna and Dorsa Sadigh at

Stanford University

Machine Learning

Improving Long-Horizon Imitation Through Instruction Prediction

21 June 2023 by Joey Hejna and others

Machine Learning, Artificial Intelligence

Distance Weighted Supervised Learning for Offline Interaction Data

26 April 2023 by Joey Hejna and others

Machine Learning

Extreme Q-Learning: MaxEnt RL without Entropy

28 February 2023 by Divyansh Garg and others

Machine Learning, Artificial Intelligence

Few-Shot Preference Learning for Human-in-the-Loop RL

6 December 2022 by Joey Hejna and Dorsa Sadigh

Robotics, Artificial Intelligence

Topics

Machine Learning Artificial Intelligence Robotics Computation and Language Human-Computer Interaction