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I am a final-year PhD student at UC San Diego, advised by Professors Xiaolong Wang and Hao Su. During my PhD, I have been fortunate to intern at NVIDIA Research and Meta AI (FAIR), and my research has been supported by the NVIDIA Graduate Research Fellowship. Before starting my PhD, I was a visiting student at UC Berkeley and a research intern at Berkeley AI Research. I received my BS and MS degrees from the Technical University of Denmark (DTU).

I am interested in building reliable, open-source algorithms for decision-making. I like robots 🤖, plants 🪴, books 📚, and they/them pronouns 🏳️‍🌈.

Publications and preprints

Papers sorted by recency. Representative papers are highlighted.

Learning Massively Multitask World Models for Continuous Control
Nicklas Hansen, Hao Su*, Xiaolong Wang*
Preprint, 2025
project page / arXiv / code / models / dataset / bibtex

Learning to Design Soft Hands using Reward Models
Xueqian Bai, Nicklas Hansen, Adabhav Singh, Michael T. Tolley, Yan Duan, Pieter Abbeel, Xiaolong Wang, Sha Yi
arXiv preprint, 2025
project page / pdf / bibtex

MyoChallenge 2024: A New Benchmark for Physiological Dexterity and Agility in Bionic Humans
Cheryl Wang, Chun Kwang Tan, Balint K Hodossy, Shirui Lyu, [...], Nicklas Hansen, [...], Vikash Kumar, Vittorio Caggiano (26 authors)
Conference on Neural Information Processing Systems (NeurIPS) D&B Track, 2025
pdf / code / bibtex

Generalizable Robotic Insertion with World Models
Nicklas Hansen, Iretiayo Akinola, Yijie Guo, Jie Xu, Bingjie Tang, Hao Su, Xiaolong Wang, Abhishek Gupta, Dieter Fox, Yashraj Narang
Workshop on Out-of-Distribution Generalization in Robotics at RSS, 2025
pdf / bibtex

Multi-Stage Manipulation with Demonstration-Augmented Reward, Policy and World Model Learning
Adrià López Escoriza, Nicklas Hansen, Stone Tao, Tongzhou Mu, Hao Su
International Conference on Machine Learning (ICML), 2025
project page / arXiv / code / bibtex

Policy Learning with Multi-Task World Models
Ignat Georgiev, Varun Giridhar, Nicklas Hansen, Animesh Garg
International Conference on Learning Representations (ICLR), 2025
project page / arXiv / code / models / bibtex

Hierarchical World Models as Visual Whole-Body Humanoid Controllers
Nicklas Hansen, Jyothir S V, Vlad Sobal, Yann LeCun, Xiaolong Wang*, Hao Su*
International Conference on Learning Representations (ICLR), 2025
project page / arXiv / code / models / bibtex

A Simulation Benchmark for Autonomous Racing with Large-Scale Human Data
Adrian Remonda, Nicklas Hansen, Ayoub Raji, Nicola Musiu, Marko Bertogna, Eduardo E. Veas, Xiaolong Wang
Conference on Neural Information Processing Systems (NeurIPS) D&B Track, 2024
project page / arXiv / code / dataset / bibtex

A Recipe for Unbounded Data Augmentation in Visual Reinforcement Learning
Abdulaziz Almuzairee, Nicklas Hansen, Henrik I. Christensen
Reinforcement Learning Conference (RLC), 2024
project page / arXiv / code / bibtex

TD-MPC2: Scalable, Robust World Models for Continuous Control
Nicklas Hansen, Hao Su*, Xiaolong Wang*
International Conference on Learning Representations (ICLR), 2024 (Spotlight)
project page / arXiv / code / models / dataset / bibtex

Open X-Embodiment: Robotic Learning Datasets and RT-X Models
Open X-Embodiment, [...], Nicklas Hansen, [...] (200+ authors)
International Conference on Robotics and Automation (ICRA), 2024
project page / arXiv / code / dataset / bibtex

MoDem-V2: Visuo-Motor World Models for Real-World Robot Manipulation
Patrick Lancaster, Nicklas Hansen, Aravind Rajeswaran, Vikash Kumar
International Conference on Robotics and Automation (ICRA), 2024
project page / arXiv / code / bibtex

GNFactor: Multi-Task Real Robot Learning with Generalizable Neural Feature Fields
Yanjie Ze*, Ge Yan*, Yueh-Hua Wu*, Annabella Macaluso, Yuying Ge, Jianglong Ye, Nicklas Hansen, Li Erran Li, Xiaolong Wang
Conference on Robot Learning (CoRL), 2023 (Oral)
project page / arXiv / code / bibtex

Finetuning Offline World Models in the Real World
Yunhai Feng*, Nicklas Hansen*, Ziyan Xiong*, Chandramouli Rajagopalan, Xiaolong Wang
Conference on Robot Learning (CoRL), 2023 (Oral)
project page / arXiv / code / bibtex

On Pre-Training for Visuo-Motor Control: Revisiting a Learning-from-Scratch Baseline
Nicklas Hansen*, Zhecheng Yuan*, Yanjie Ze*, Tongzhou Mu*, Aravind Rajeswaran+, Hao Su+, Huazhe Xu+, Xiaolong Wang+
International Conference on Machine Learning (ICML), 2023
arXiv / code / bibtex

MoDem: Accelerating Visual Model-Based Reinforcement Learning with Demonstrations
Nicklas Hansen, Yixin Lin, Hao Su, Xiaolong Wang, Vikash Kumar, Aravind Rajeswaran
International Conference on Learning Representations (ICLR), 2023
project page / arXiv / code / bibtex

On the Feasibility of Cross-Task Transfer with Model-Based Reinforcement Learning
Yifan Xu*, Nicklas Hansen*, Zirui Wang, Yung-Chieh Chan, Hao Su, Zhuowen Tu
International Conference on Learning Representations (ICLR), 2023
project page / arXiv / code / bibtex

Visual Reinforcement Learning with Self-Supervised 3D Representations
Yanjie Ze*, Nicklas Hansen*, Yinbo Chen, Mohit Jain, Xiaolong Wang
Robotics and Automation Letters (RA-L), 2023
project page / arXiv / code / bibtex

Graph Inverse Reinforcement Learning from Diverse Videos
Sateesh Kumar, Jonathan Zamora*, Nicklas Hansen*, Rishabh Jangir, Xiaolong Wang
Conference on Robot Learning (CoRL), 2022 (Oral)
project page / arXiv / code / bibtex

Temporal Difference Learning for Model Predictive Control
Nicklas Hansen, Xiaolong Wang*, Hao Su*
International Conference on Machine Learning (ICML), 2022
project page / arXiv / slides / code / bibtex

Look Closer: Bridging Egocentric and Third-Person Views with Transformers for Robotic Manipulation
Rishabh Jangir*, Nicklas Hansen*, Sambaran Ghosal, Mohit Jain, Xiaolong Wang
Robotics and Automation Letters (RA-L), 2022
International Conference on Robotics and Automation (ICRA), 2022
project page / arXiv / code / bibtex

Learning Vision-Guided Quadrupedal Locomotion End-to-End with Cross-Modal Transformers
Ruihan Yang*, Minghao Zhang*, Nicklas Hansen, Huazhe Xu, Xiaolong Wang
International Conference on Learning Representations (ICLR), 2022 (Spotlight)
project page / arXiv / code / bibtex

Stabilizing Deep Q-Learning with ConvNets and Vision Transformers under Data Augmentation
Nicklas Hansen, Hao Su, Xiaolong Wang
Conference on Neural Information Processing Systems (NeurIPS), 2021
project page / arXiv / code / bibtex

Generalization in Reinforcement Learning by Soft Data Augmentation
Nicklas Hansen, Xiaolong Wang
International Conference on Robotics and Automation (ICRA), 2021
project page / arXiv / code / bibtex

Self-Supervised Policy Adaptation during Deployment
Nicklas Hansen, Rishabh Jangir, Yu Sun, Guillem Alenyà, Pieter Abbeel, Alexei A. Efros, Lerrel Pinto, Xiaolong Wang
International Conference on Learning Representations (ICLR), 2021 (Spotlight)
project page / arXiv / blog / code / bibtex

Short Term Blood Glucose Prediction based on Continuous Glucose Monitoring Data
Ali Mohebbi, Alexander R. Johansen, Nicklas Hansen, Peter E. Christensen, Jens M. Tarp, Morten L. Jensen, Henrik Bengtsson, Morten Mørup
Engineering in Medicine and Biology Conference (EMBC), 2020
arXiv / bibtex

Select open-source projects

TD-MPC2 Official Implementation⭐ 705
Nicklas Hansen, Hao Su*, Xiaolong Wang*
Oct 2023
project page / arXiv / code / bibtex

TD-MPC Official Implementation⭐ 485
Nicklas Hansen, Xiaolong Wang*, Hao Su*
Mar 2022
project page / arXiv / slides / code / bibtex

DMControl Generalization Benchmark⭐ 182
Nicklas Hansen, Xiaolong Wang
Nov 2020
project page / arXiv / code / bibtex

Press coverage

I have been mentioned in various media in connection with my research. Here's a few select articles:

Contact

You are welcome to contact me regarding my research! My email is hello [at] nicklashansen 。com

Nicklas Hansen

Publications and preprints

Select open-source projects

Press coverage

Book recommendations 📚

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