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Chubin Zhang

Ph.D. Student
Tsinghua University
zcb24 (at) mails.tsinghua.edu.cn


About Me

I’m currently a third-year Ph.D. student at Tsinghua University, supervised by Prof. Yansong Tang and Prof. Jiwen Lu. I aim to build generalist embodied intelligence that learns autonomously and solves complex tasks in the open world. My research explores how scaling training-time and inference-time compute can enable robots to learn generalizable capabilities from an embodied data pyramid spanning Internet knowledge, human behavior, simulation, and real-robot experience, and continually acquire new skills through autonomous exploration and interaction.

Prior to my PhD, I received a bachelor from the Department of Automation, Tsinghua University. I am also a member of Class of General Artificial Intelligence of Tsinghua University. In my undergraduate research, I am fortunate to work with Yueqi Duan at the Department of Electronic Engineering of Tsinghua University.

Publications & Preprints

  1. Method diagram for EgoForesight: Effectively Scaling Policy Learning with Noisy Egocentric Actions Preprint
    arXiv preprint, 2026

    TL;DR Scales robot policy learning with noisy egocentric actions by accounting for label reliability and distilling action-relevant knowledge from demonstrated future outcomes.

  2. Method diagram for Can World and Action Modeling Benefit Each Other under Unified Causal Training? Preprint
    arXiv preprint, 2026

    TL;DR Unifies world prediction and action generation in one causal model, showing that learning to predict action outcomes and learning to act improve each other.

  3. Method diagram for SkillMemo: Expert-guided Skill Memory Framework for Compositional Embodied Manipulation Preprint
    Changyuan Wang, Chubin Zhang, Zhenyu Wu, Runhao Li, Angyuan Ma, Ke Chao, Yinan Liang, Xiuwei Xu, Ziwei Wang, Yansong Tang, Jiwen Lu
    arXiv preprint, 2026

    TL;DR Improves compositional manipulation by decomposing demonstrations into reusable latent skills and retrieving relevant skill memories to guide action prediction.

  4. Method diagram for SAFE-Pruner: Semantic Attention-Guided Future-Aware Token Pruning for Efficient Vision-Language-Action Manipulation ECCV
    Shilin Ma, Chubin Zhang, Changyuan Wang, Yuji Wang, Yue Wu, Zixuan Wang, Jingqi Tian, Zheng Zhu, Yansong Tang
    European Conference on Computer Vision (ECCV), 2026

    TL;DR Accelerates vision-language-action inference by forecasting deep-layer token importance, preserving task-critical visual information while pruning redundant tokens.

  5. Method diagram for StableVLA: Towards Robust Vision-Language-Action Models without Extra Data ICML
    Yiyang Fu, Chubin Zhang, Shukai Gong, Yufan Deng, Kaiwei Sun, Qiyang Min, Qibin Hou, Yansong Tang, Jianan Wang, Daquan Zhou
    International Conference on Machine Learning (ICML), 2026

    TL;DR Improves robustness to unseen visual disturbances with a lightweight information bottleneck adapter that filters visual noise without extra data or augmentation.

  6. Method diagram for CLAP: Contrastive Latent Action Pretraining for Learning Vision-Language-Action Models from Human Videos Preprint
    arXiv preprint, 2026

    TL;DR Transfers manipulation skills from human videos to robots by contrastively aligning visual transitions with an executable latent action vocabulary.

  7. Method diagram for Coevolutionary Continuous Discrete Diffusion: Make Your Diffusion Language Model a Latent Reasoner ICML
    International Conference on Machine Learning (ICML), 2026

    TL;DR Jointly denoises continuous representations and discrete tokens to combine expressive latent reasoning with effective language-model training and generation.

  8. Method diagram for DSPv2: Improved Dense Policy for Effective and Generalizable Whole-body Mobile Manipulation ICRA
    IEEE International Conference on Robotics and Automation (ICRA), 2026

    TL;DR Combines multi-view semantic features with 3D spatial perception and a dense action head to improve generalization and generate coherent whole-body manipulation.

  9. Method diagram for Thinking With Videos: Multimodal Tool-Augmented Reinforcement Learning for Long Video Reasoning CVPR
    Haoji Zhang, Xin Gu, Jiawen Li, Chixiang Ma, Sule Bai, Chubin Zhang, Bowen Zhang, Zhichao Zhou, Dongliang He, Yansong Tang
    IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2026

    TL;DR Teaches video models to retrieve relevant frames while reasoning, using tool-augmented reinforcement learning for long-video question answering and temporal grounding.

  10. Method diagram for VLA-RL: Towards Masterful and General Robotic Manipulation with Scalable Reinforcement Learning IROS
    IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2026

    TL;DR Improves pretrained vision-language-action models through scalable online reinforcement learning, using a robotic process reward model to guide exploration.

  11. Method diagram for OccNeRF: Advancing 3D Occupancy Prediction in LiDAR-Free Environments TIP
    IEEE Transactions on Image Processing (TIP), 2025

    TL;DR Learns semantic 3D occupancy from multi-camera images without LiDAR or 3D supervision, combining neural rendering, photometric consistency, and 2D semantic cues.

  12. Method diagram for GeoLRM: Geometry-Aware Large Reconstruction Model for High-Quality 3D Gaussian Generation NeurIPS
    Chubin Zhang, Hongliang Song, Yi Wei, Yu Chen, Jiwen Lu, Yansong Tang
    Advances in Neural Information Processing Systems (NeurIPS), 2024

    TL;DR Reconstructs detailed 3D Gaussian assets from multiple images using sparse 3D anchor points and geometry-aware attention, enabling efficient reconstruction with dense input views.

  13. Method diagram for Semantic Ray: Learning a Generalizable Semantic Field with Cross-Reprojection Attention CVPR
    IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2023

    TL;DR Learns generalizable semantic fields by aggregating context across reprojected image rays, using efficient attention to transfer semantic understanding to previously unseen scenes.


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