Selected Publications

†: Equal contribution · §: Work I mentored

Conference IROS 2026

PrefMoE: Robust Preference Modeling with Mixture-of-Experts Reward Learning

Ziqin Yuan†, Ruiqi Wang†§, Dezhong Zhao, Baijian Yang, and Byung-Cheol Min.

2026 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2026), Pittsburgh, PA, USA, September 27 - October 1, 2026.

Website ArXiv

Conference IROS 2026

Pre-Execution Safety Gate for LLM-Based Robot Systems

Ike Obi, Vishnunandan Venkatesh, Weizheng Wang, Ruiqi Wang, Dayoon Suh, Temitope Ibrahim Amosa, Wonse Jo, and Byung-Cheol Min.

2026 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2026), Pittsburgh, PA, USA, September 27 - October 1, 2026.

ArXiv

Conference NeurIPS 2025 Oral · Top 0.36%

PRIMT: Preference-based Reinforcement Learning with Multimodal Feedback and Trajectory Synthesis from Foundation Models

Ruiqi Wang†, Dezhong Zhao†, Ziqin Yuan†, Tianyu Shao, Guohua Chen, Dominic Kao, Sungeun Hong, and Byung-Cheol Min.

Advances in Neural Information Processing Systems (NeurIPS), San Diego, USA, December 2025.

Website Preprint Code

Conference IROS 2025

PrefMMT: Modeling Human Preferences in Preference-based Reinforcement Learning with Multimodal Transformers

Dezhong Zhao†, Ruiqi Wang†§, Dayoon Suh, Taehyeon Kim, Ziqin Yuan, Byung-Cheol Min, and Guohua Chen.

IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), Hangzhou, China, October 2025.

Website ArXiv Video Code

Conference IROS 2025

Modeling and Evaluating Trust Dynamics in Multi-Human Multi-Robot Task Allocation

Ike Obi, Ruiqi Wang, Wonse Jo, and Byung-Cheol Min.

IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), Hangzhou, China, October 2025.

ArXiv Video

Conference ICRA 2025

Personalization in Human-Robot Interaction through Preference-based Action Representation Learning

Ruiqi Wang†, Dezhong Zhao†, Dayoon Suh, Ziqin Yuan, Guohua Chen, and Byung-Cheol Min.

IEEE International Conference on Robotics and Automation (ICRA), Atlanta, USA, 19-23 May, 2025.

Website ArXiv Video

Conference ICRA 2025

Adaptive Task Allocation in Multi-Human Multi-Robot Teams under Team Heterogeneity and Dynamic Information Uncertainty

Ziqin Yuan†, Ruiqi Wang†§, Taehyeon Kim, Dezhong Zhao, Ike Obi, and Byung-Cheol Min.

IEEE International Conference on Robotics and Automation (ICRA), Atlanta, USA, 19-23 May, 2025.

Website ArXiv Video

Journal IEEE RA-L

PrefCLM: Enhancing Preference-based Reinforcement Learning with Crowdsourced Large Language Models

Ruiqi Wang, Dezhong Zhao, Ziqin Yuan, Ike Obi, and Byung-Cheol Min.

IEEE Robotics and Automation Letters, Vol. 10, No. 3, pp. 2486-2493, March 2025.

Paper Website Video

Journal IEEE T-HMS

Cognitive Load-based Affective Workload Allocation for Multi-Human Multi-Robot Teams

Wonse Jo, Ruiqi Wang, Baijian Yang, Dan Foti, Mo Rastgaar, and Byung-Cheol Min.

IEEE Transactions on Human-Machine Systems, Vol. 55, No. 1, pp. 23-36, February 2025.

Paper Website Video

Journal IEEE T-ASLP

Multimodal Audio-based Disease Prediction with Transformer-based Hierarchical Fusion Network

Jinjin Cai†, Ruiqi Wang†, Dezhong Zhao, Ziqin Yuan, Victoria McKenna, Aaron Friedman, Rachel Foot, Susan Storey, Ryan Boente, Sudip Vhaduri, and Byung-Cheol Min.

IEEE Transactions on Audio, Speech, and Language Processing, vol. 33, pp. 1170-1182, February 2025.

Paper Website Code

Journal IEEE T-AFFC

MOCAS: A Multimodal Dataset for Objective Cognitive Workload Assessment on Simultaneous Tasks

Wonse Jo†, Ruiqi Wang†, Go-Eum Cha, Su Sun, Revanth Senthilkumaran, Daniel Foti, and Byung-Cheol Min.

IEEE Transactions on Affective Computing, vol. 16, no. 1, pp. 116-132, Jan.-March 2025.

Paper Video Dataset

Journal IEEE RA-L

Initial Task Allocation in Multi-Human Multi-Robot Teams: An Attention-enhanced Hierarchical Reinforcement Learning Approach

Ruiqi Wang, Dezhong Zhao, Arjun Gupte, and Byung-Cheol Min.

IEEE Robotics and Automation Letters, vol. 9, no. 4, pp. 3451-3458, April 2024.

Paper Website Video

Journal IEEE T-CDS

Husformer: A Multi-Modal Transformer for Multi-Modal Human State Recognition

Ruiqi Wang†, Wonse Jo†, Dezhong Zhao, Weizheng Wang, Baijian Yang, Guohua Chen, and Byung-Cheol Min.

IEEE Transactions on Cognitive and Developmental Systems, Vol. 16, No. 4, pp. 1374-1390, August 2024.

Paper Code

Under Review

REBEL: Rule-based and Experience-enhanced Learning with LLMs for Initial Task Allocation in Multi-Human Multi-Robot Teams

Arjun Gupte†, Ruiqi Wang†§, L. N. Vishnunandan Venkatesh, Taehyeon Kim, Dezhong Zhao, and Byung-Cheol Min.

arXiv preprint, 2024.

Website ArXiv Video

Conference IROS 2023

Initial Task Allocation for Multi-Human Multi-Robot Teams with Attention-based Deep Reinforcement Learning

Ruiqi Wang, Dezhong Zhao, and Byung-Cheol Min.

2023 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2023), Detroit, USA, October 1-5, 2023.

Paper Website Video

Conference IROS 2023

NaviSTAR: Socially Aware Robot Navigation with Hybrid Spatio-Temporal Graph Transformer and Preference Learning

Weizheng Wang, Ruiqi Wang, Le Mao, and Byung-Cheol Min.

2023 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2023), Detroit, USA, October 1-5, 2023.

Paper Code

Conference IROS 2022

Feedback-efficient Active Preference Learning for Socially Aware Robot Navigation

Ruiqi Wang, Weizheng Wang, and Byung-Cheol Min.

2022 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2022), Kyoto, Japan, October 23-27, 2022.

Paper Website Video

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