TR2025-163

In-Context Policy Iteration for Dynamic Manipulation


    •  Van der Merwe, M., Jha, D.K., "In-Context Policy Iteration for Dynamic Manipulation", Advances in Neural Information Processing Systems (NeurIPS) Workshop on Embodied World Models for Decision Making, December 2025.
      BibTeX TR2025-163 PDF Video
      • @inproceedings{VanderMerwe2025dec,
      • author = {Van der Merwe, Mark and Jha, Devesh K.},
      • title = {{In-Context Policy Iteration for Dynamic Manipulation}},
      • booktitle = {Advances in Neural Information Processing Systems (NeurIPS) Workshop on Embodied World Models for Decision Making},
      • year = 2025,
      • month = dec,
      • url = {https://www.merl.com/publications/TR2025-163}
      • }
  • Research Areas:

    Artificial Intelligence, Robotics

Abstract:

Attention-based architectures trained on internet-scale language data have demonstrated state of the art reasoning ability for various language-based tasks, such as logic problems and textual reasoning. Additionally, these Large Language Models (LLMs) have exhibited the ability to perform few-shot prediction via in-context learning, in which input-output examples provided in the prompt are generalized to new inputs. This ability furthermore extends beyond standard language tasks, enabling few-shot learning for general patterns. In this work, we consider the application of in-context learning with pre-trained language models for dynamic manipulation. Dynamic manipulation introduces several crucial challenges, including increased dimensionality, complex dynamics, and partial observability. To address this, we take an iterative approach, and formulate our in-context learning problem to predict adjustments to a parametric policy based on previous interactions. We show across several tasks in simulation and on a physical robot that utilizing in-context learning outperforms alternative methods in the low data regime.

 

  • Related News & Events

    •  NEWS    MERL Researchers at NeurIPS 2025 presented 2 conference papers, 5 workshop papers, and organized a workshop.
      Date: December 2, 2025 - December 7, 2025
      Where: San Diego
      MERL Contacts: Petros T. Boufounos; Anoop Cherian; Radu Corcodel; Stefano Di Cairano; Chiori Hori; Christopher R. Laughman; Suhas Anand Lohit; Pedro Miraldo; Saviz Mowlavi; Kuan-Chuan Peng; Arvind Raghunathan; Diego Romeres; Yuki Shirai; Abraham P. Vinod; Pu (Perry) Wang
      Research Areas: Artificial Intelligence, Computational Sensing, Computer Vision, Control, Data Analytics, Dynamical Systems, Machine Learning, Multi-Physical Modeling, Optimization, Robotics, Signal Processing, Speech & Audio
      Brief
      • MERL researchers presented 2 main-conference papers and 5 workshop papers, as well as organized a workshop, at NeurIPS 2025.

        Main Conference Papers:

        1) Sorachi Kato, Ryoma Yataka, Pu Wang, Pedro Miraldo, Takuya Fujihashi, and Petros Boufounos, "RAPTR: Radar-based 3D Pose Estimation using Transformer", Code available at: https://github.com/merlresearch/radar-pose-transformer

        2) Runyu Zhang, Arvind Raghunathan, Jeff Shamma, and Na Li, "Constrained Optimization From a Control Perspective via Feedback Linearization"

        Workshop Papers:

        1) Yuyou Zhang, Radu Corcodel, Chiori Hori, Anoop Cherian, and Ding Zhao, "SpinBench: Perspective and Rotation as a Lens on Spatial Reasoning in VLMs", NeuriIPS 2025 Workshop on SPACE in Vision, Language, and Embodied AI (SpaVLE) (Best Paper Runner-up)

        2) Xiaoyu Xie, Saviz Mowlavi, and Mouhacine Benosman, "Smooth and Sparse Latent Dynamics in Operator Learning with Jerk Regularization", Workshop on Machine Learning and the Physical Sciences (ML4PS)

        3) Spencer Hutchinson, Abraham Vinod, François Germain, Stefano Di Cairano, Christopher Laughman, and Ankush Chakrabarty, "Quantile-SMPC for Grid-Interactive Buildings with Multivariate Temporal Fusion Transformers", Workshop on UrbanAI: Harnessing Artificial Intelligence for Smart Cities (UrbanAI)

        4) Yuki Shirai, Kei Ota, Devesh Jha, and Diego Romeres, "Sim-to-Real Contact-Rich Pivoting via Optimization-Guided RL with Vision and Touch", Worskhop on Embodied World Models for Decision Making

        5) Mark Van der Merwe and Devesh Jha, "In-Context Policy Iteration for Dynamic Manipulation", Workshop on Embodied World Models for Decision Making

        Workshop Organized:

        MERL members co-organized the Multimodal Algorithmic Reasoning (MAR) Workshop (https://marworkshop.github.io/neurips25/). Organizers: Anoop Cherian (Mitsubishi Electric Research Laboratories), Kuan-Chuan Peng (Mitsubishi Electric Research Laboratories), Suhas Lohit (Mitsubishi Electric Research Laboratories), Honglu Zhou (Salesforce AI Research), Kevin Smith (Massachusetts Institute of Technology), and Joshua B. Tenenbaum (Massachusetts Institute of Technology).
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  • Related Video

  • Related Publications

  •  Van der Merwe, M., Jha, D.K., "In-Context Iterative Policy Improvement for Dynamic Manipulation", Conference on Robot Learning (CoRL), September 2025.
    BibTeX TR2025-136 PDF Video
    • @inproceedings{VanderMerwe2025sep,
    • author = {Van der Merwe, Mark and Jha, Devesh K.},
    • title = {{In-Context Iterative Policy Improvement for Dynamic Manipulation}},
    • booktitle = {Conference on Robot Learning (CoRL)},
    • year = 2025,
    • month = sep,
    • url = {https://www.merl.com/publications/TR2025-136}
    • }
  •  Van der Merwe, M., Jha, D.K., "In-Context Iterative Policy Improvement for Dynamic Manipulation", arXiv, August 2025.
    BibTeX arXiv
    • @article{VanderMerwe2025aug,
    • author = {Van der Merwe, Mark and Jha, Devesh K.},
    • title = {{In-Context Iterative Policy Improvement for Dynamic Manipulation}},
    • journal = {arXiv},
    • year = 2025,
    • month = aug,
    • url = {https://arxiv.org/abs/2508.15021}
    • }