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_data/publications.yml

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- id: v-ocbf
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title: "V-OCBF: Learning Safety Filters from Offline Data via Value-Guided Offline Control Barrier Functions"
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authors: "M Tayal, M Tayal, A Singh, S Kolathaya, R Prakash"
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venue: "Transactions on Machine Learning Research (TMLR)"
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venue: "Transactions on Machine Learning Research"
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tag: "TMLR'26"
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year: 2026
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type: journal
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image: placeholder.png
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links:
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- { label: Paper, url: "https://arxiv.org/abs/2512.10822" }
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- { label: Paper, url: "https://openreview.net/forum?id=PGO9mpIyyb" }
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- id: st2
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title: "Sequentially Teaching Sequential Tasks (ST)<sup>2</sup>: Teaching Robots Long-Horizon Manipulation Skills"
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authors: "Z Ajanović, R Prakash, L de Souza Rosa, J Kober"
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venue: "IEEE Robotics & Automation Magazine"
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venue: "IEEE Robotics and Automation Magazine"
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tag: "RA-M'26"
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year: 2026
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type: journal
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- id: safedmps-icra26
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title: "SafeDMPs: Integrating Formal Safety with DMPs for Adaptive HRI"
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authors: "P Tiwari, S Nath, R Prakash"
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venue: "2026 IEEE International Conference on Robotics and Automation (ICRA)"
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venue: "IEEE International Conference on Robotics and Automation (ICRA)"
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tag: "ICRA'26"
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year: 2026
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type: conference
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image: safedmps_26.png
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links:
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- { label: Paper, url: "https://arxiv.org/abs/2509.16482" }
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- { label: Paper, url: "https://arxiv.org/abs/2603.29708" }
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- { label: Project Site, url: "https://tiwari-pranav.github.io/SafeDMPs/" }
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- { label: Code, url: "https://github.com/Tiwari-Pranav/ghost-In-the-Arm/" }
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- id: variable-impedance-icra26
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title: "Safe and Optimal Variable Impedance Control via Certified Reinforcement Learning"
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authors: "S Kumar, R Prakash"
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venue: "2026 IEEE International Conference on Robotics and Automation (ICRA)"
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venue: "IEEE International Conference on Robotics and Automation (ICRA)"
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tag: "ICRA'26"
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year: 2026
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type: conference
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image: rlcgms_26.png
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links:
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- { label: Paper }
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- { label: Paper, url: "https://arxiv.org/abs/2511.16330" }
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- id: beyond-the-teacher-icra26
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title: "Beyond the Teacher: Leveraging Mixed-Skill Demonstrations for Robust Imitation Learning"
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authors: "S Saharsh, S Sonkar, P Jagtap, R Prakash"
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venue: "2026 IEEE International Conference on Robotics and Automation (ICRA)"
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venue: "IEEE International Conference on Robotics and Automation (ICRA)"
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tag: "ICRA'26"
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year: 2026
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type: conference
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- id: diffusionpack
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title: "DiffusionPack: Bin Packing with Custom Human Preferences"
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authors: "A Maurya, S Vyas-b, A Bassunadhar, R Prakash"
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authors: "A Maurya, S Vats, G Balachandran, R Prakash"
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venue: "NeurIPS 2025 Workshop: Bridging Language, Agent, and World Models for Robotics"
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tag: "NeurIPSW'25"
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year: 2025
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image: ovita_25.gif
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links:
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- { label: Paper, url: "https://ieeexplore.ieee.org/abstract/document/11150730" }
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- { label: Code, url: "https://github.com/anurag1000101/OVITA" }
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- id: safedmps-corlw25
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title: "SafeDMPs: Integrating Formal Safety with DMPs for Adaptive HRI"
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image: corlw_saferol_25.png
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links:
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- { label: Paper, url: "https://openreview.net/forum?id=Xj3V96qTpf" }
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- { label: Project Site, url: "https://tiwari-pranav.github.io/SafeDMPs/" }
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- { label: Code, url: "https://github.com/Tiwari-Pranav/ghost-In-the-Arm/" }
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- id: beyond-the-teacher-corlw25
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title: "Beyond the Teacher: Leveraging Mixed-Skill Demonstrations for Robust Imitation Learning"
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image: corlw_data_25.png
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links:
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- { label: Paper, url: "https://openreview.net/forum?id=7Ox8aKIFbA" }
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- { label: Project Site, url: "https://focaslab.github.io/beyondtheteacher/" }
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- { label: Code, url: "https://github.com/FocasLab/ICRA-IL-2026" }
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- id: pacer
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title: "PACER: Progress-Aligned Curation for Error-Resilient Imitation Learning"
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image: tro_25.gif
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links:
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- { label: Paper, url: "https://ieeexplore.ieee.org/abstract/document/11049008" }
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- { label: Code, url: "https://github.com/franzesegiovanni/policy_transportation" }
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title: "Impedance Primitive-Augmented Hierarchical Reinforcement Learning for Sequential Tasks"
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authors: "AB Tahmaz, R Prakash, J Kober"
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venue: "2025 IEEE International Conference on Robotics and Automation (ICRA)"
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venue: "IEEE International Conference on Robotics and Automation (ICRA)"
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tag: "ICRA'25"
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year: 2025
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type: conference
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- id: hirl-workshop
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title: "3rd Workshop on Human-Interactive Robot Learning (HIRL)"
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authors: "M Racca, R Mirsky, E Senft, X Xiao, I Idrees, A Kshirsagar, R Prakash"
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venue: "Companion of the 2024 ACM/IEEE International Conference on Human-Robot Interaction"
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venue: "ACM/IEEE International Conference on Human-Robot Interaction (HRI)"
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tag: "HRI'24"
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year: 2024
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type: workshop

_pages/contact.md

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<div class="contact-section">
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<h2>Prospective Students</h2>
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<p>
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We are always looking for highly motivated students interested in robotics, control theory, machine learning, and human-robot interaction. View our research at <a href="https://scholar.google.com/citations?user=mV2CW4QAAAAJ" target="_blank">Google Scholar</a>. If you are interested in joining our lab:
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We are always looking for highly motivated students interested in robotics, control theory, machine learning, and human-robot interaction. If you are interested in joining our lab:
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</p>
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<ul>
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<li>Postdoctoral researchers: Candidates with a background in robotics, control, or machine learning may join through fellowships such as the IoE, C V Raman, National Post-Doctoral, or DS Kothari fellowships. Please write to HiRo Lab with your CV and research interests.</li>
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<li>PhD / MTech(R) applicants: Apply to the Department of Cyber-Physical Systems through the <a href="https://iisc.ac.in/admissions/" target="_blank">IISc admissions portal</a>. Applications are typically open in March–April and September–October.</li>
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<li>Postdoctoral researchers: Candidates with a background in robotics, control, or machine learning may join through fellowships such as the C V Raman Post-Doctoral, National Post-Doctoral, or DS Kothari fellowships. Please write to <a href="mailto:hiro.cps.iisc@gmail.com">hiro.cps.iisc@gmail.com</a>, cc'ing Prof. Ravi Prakash with your CV and research interests.</li>
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<li>PhD / MTech(R) applicants: Apply to the Department of Cyber-Physical Systems through the <a href="https://iisc.ac.in/admissions/" target="_blank">IISc admissions portal</a>. Applications are typically open in March–April and September–October. Please write to <a href="mailto:hiro.cps.iisc@gmail.com">hiro.cps.iisc@gmail.com</a>, cc'ing Prof. Ravi Prakash with your CV and research interests.</li>
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<li>Master's students (IISc): If you want to pursue your master's project with HiRo Lab, visit Prof. Ravi Prakash at his office or write to him.</li>
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<li>Research staff and UG interns: Please email <a href="mailto:hiro.cps.iisc@gmail.com">hiro.cps.iisc@gmail.com</a> with your interests and CV. Undergraduate students are also encouraged to apply through programs such as the <a href="https://www.ias.ac.in/" target="_blank">INSA Summer Research Fellowship</a>, which are usually announced in October–November.</li>
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<li>Research staff and UG interns: Please email <a href="mailto:hiro.cps.iisc@gmail.com">hiro.cps.iisc@gmail.com</a> with your interests and CV. UG students are also encouraged to apply through programs such as the <a href="https://www.ias.ac.in/" target="_blank">INSA Summer Research Fellowship</a>, which are usually announced in October–November. For UG interns, a minimum of 2 months must be spent here at the lab to receive an internship certificate, and most internships are self-funded.</li>
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</ul>
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<p>
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When writing to HiRo Lab, please include a short note on your background, why our lab interests you (a specific project or research direction), the skills you would bring, and your CV.
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When writing to HiRo Lab, please include a short note on your background, why HiRo lab interests you (a specific project or research direction), the skills you would bring, and your CV.
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</p>
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<p>
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<strong>Note:</strong> We receive a large number of applications. If you do not hear back within a week, please send a gentle reminder. If you still do not receive a response after that, your application has been reviewed but is not a fit for our current openings.

_pages/people.md

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</div>
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<h2>Robots</h2>
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<div class="people-grid">
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<div class="people-grid robots-grid">
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<div class="person-card">
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<a href="https://franka.de/franka-research-3" target="_blank" class="person-image-link">
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<img src="/assets/img/people/franka_research_3.jpg" alt="Franka Research 3"/>

_pages/research.md

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<div class="research-intro">
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<p>
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Our mission is to develop theoretical foundations and practical algorithms for human-interactive robotics.
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Our group focuses on enabling robots to learn from and collaborate with humans in real-world environments.
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We leverage tools from machine learning, control theory, and human-robot interaction to build intelligent,
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adaptive, and safe robotic systems.
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Our mission is to build the theoretical foundations and practical algorithms that let robots learn from,
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adapt to, and collaborate with people in unstructured, real-world environments. We draw on machine learning,
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optimal control, and formal methods to make robotic systems data-efficient, generalizable, and provably safe
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during physical human-robot interaction. The themes below summarize our current directions and representative
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results.
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</p>
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</div>
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<div class="research-area-content">
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<h2>Interactive Reinforcement Learning</h2>
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<p>
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We develop methods for robots to learn complex manipulation tasks through hierarchical reinforcement
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learning and imitation learning. Our work on
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<a href="/publications/#imphrl" class="work-link">Impedance Primitive-Augmented Hierarchical RL (ICRA'25)</a>
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augments high-level RL policies with impedance control primitives to solve long-horizon sequential tasks,
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enabling compliant and adaptive skill acquisition. We also investigate robust imitation learning that
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exploits mixed-quality demonstrations to improve generalization from imperfect human teachers, as in
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<a href="/publications/#beyond-the-teacher-icra26" class="work-link">Beyond the Teacher (ICRA'26)</a>.
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Reinforcement learning (RL) and learning from demonstration let robots acquire manipulation skills directly
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from interaction and human guidance. The hard cases are long-horizon, contact-rich tasks and learning
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robustly from limited, imperfect human data. We address the first with
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<a href="/publications/#imphrl" class="work-link">Impedance Primitive-Augmented Hierarchical RL (ICRA'25)</a>,
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which gives a high-level RL policy a low-level action space of parameterized impedance-control primitives,
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yielding compliant, contact-rich skills over extended task sequences. For the second, we make imitation
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robust to the quality of the teacher:
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<a href="/publications/#beyond-the-teacher-icra26" class="work-link">Beyond the Teacher (ICRA'26)</a>
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leverages mixed-skill demonstrations to learn policies that tolerate inconsistent human teachers,
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<a href="/publications/#rise" class="work-link">RISE (IROSW'25)</a> uses stochastic latent encodings for
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robust imitation, and <a href="/publications/#pacer" class="work-link">PACER (CoRLW'25)</a> curates
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demonstrations by task progress to curb the compounding errors that destabilize behavior cloning.
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</p>
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</div>
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<h2>Foundational Models for Robotics</h2>
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<h2>Foundation Models for Robotics</h2>
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<p>
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We explore how large-scale pre-trained vision-language models can enable natural, flexible
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robot-human interaction. Our work on
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Foundation models, including large vision-language models (VLMs) and, increasingly, vision-language-action
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(VLA) models pretrained on web- and robot-scale data, supply semantic priors and broad generalization that
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can ground robot behavior in natural language and perception. We study how to turn these priors into
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natural, flexible human-robot interaction. Our work on
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<a href="/publications/#ovita" class="work-link">OVITA (RA-L'25)</a>
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uses vision-language models to adapt robot trajectories in real time based on open-vocabulary human
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language instructions, providing interpretable trajectory modifications without retraining.
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harnesses pretrained foundation models to adapt reference trajectories from open-vocabulary language
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instructions at execution time, producing interpretable, parameterized edits to robot motion without any
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task-specific retraining.
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</p>
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<h2>Safe and Compliant Human-Robot Interaction</h2>
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Safety and compliance are essential when robots work alongside humans. Our work on
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When robots make physical contact with people, behavior must be both compliant and provably safe, with
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guarantees that hold during interaction and not just on average. We bring formal methods and
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control-theoretic certificates together with learning to enforce this.
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<a href="/publications/#safedmps-icra26" class="work-link">SafeDMPs (ICRA'26)</a>
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integrates Signal Temporal Logic (STL)-based formal safety specifications directly into Dynamic
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Movement Primitives, enabling adaptive robot motions that are provably safe during physical human-robot
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contact. We also develop
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<a href="/publications/#variable-impedance-icra26" class="work-link">certified reinforcement learning for variable impedance control (ICRA'26)</a>,
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which combines Lyapunov-based stability certificates with RL to achieve optimal, safe impedance modulation
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during interaction. More recently, we study how safety can be learned directly from offline data:
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embeds Signal Temporal Logic (STL) safety specifications directly into Dynamic Movement Primitives, so
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that adaptive motions remain provably safe during physical human-robot contact, while
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<a href="/publications/#variable-impedance-icra26" class="work-link">certified RL for variable impedance control (ICRA'26)</a>
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pairs RL with Lyapunov-based stability certificates to modulate impedance optimally with guaranteed
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stability. We also learn safety directly from offline data, without online interaction:
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<a href="/publications/#safe-flow-q-learning" class="work-link">Safe Flow Q-Learning (RLC'26)</a>
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couples reachability analysis with flow-based policies for offline safe reinforcement learning, while
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couples reachability analysis with flow-based policies for offline safe RL, and
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<a href="/publications/#v-ocbf" class="work-link">V-OCBF (TMLR'26)</a>
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learns value-guided control barrier functions as safety filters from offline datasets.
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learns value-guided control barrier functions that act as safety filters.
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</p>
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<h2>Optimization and Optimal Control</h2>
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<p>
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We develop optimization-based and data-driven approaches for robot motion planning and control.
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Our <a href="/publications/#adaptive-critic" class="work-link">Adaptive Critic (T-CST'24)</a>
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framework learns optimal controllers for uncertain robot manipulators using neural network-based value
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function approximation, achieving data-efficient online adaptation without explicit system identification.
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Our work on
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<a href="/publications/#transportation-maps" class="work-link">generalizable motion policies through keypoint parameterization and transportation maps (T-RO'25)</a>
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enables one-shot generalization of manipulation skills to novel object configurations. We also develop
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<a href="/publications/#st2" class="work-link">ST² (RA-M'26)</a>, a framework for teaching robots
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long-horizon manipulation skills through sequential human demonstrations.
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Optimization and optimal control offer principled, data-efficient ways to synthesize controllers and motion
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policies, often with stability or generalization guarantees. Our
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<a href="/publications/#adaptive-critic" class="work-link">Adaptive Critic (T-CST'24)</a>
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framework uses approximate dynamic programming with neural value-function approximation to learn
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near-optimal controllers for uncertain manipulators online, without explicit system identification.
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<a href="/publications/#transportation-maps" class="work-link">Keypoint parameterization with transportation (optimal-transport) maps (T-RO'25)</a>
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yields motion policies that generalize one-shot to novel object configurations, and
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<a href="/publications/#st2" class="work-link">ST² (RA-M'26)</a>
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teaches robots long-horizon manipulation by composing skills from sequential human demonstrations.
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</p>
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<div class="research-area-content">
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<h2>3D Vision, SLAM and World Models</h2>
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<p>
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We develop methods for robots to build accurate 3D models of their environment through active perception,
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including SLAM (Simultaneous Localization and Mapping), real-time scene reconstruction, world models for
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spatial understanding, and object-level mapping integrated with manipulation planning. Our work on
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<a href="/publications/#affordmatcher" class="work-link">AffordMatcher (CVPR'26)</a>
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learns object affordances in 3D scenes from visual signifiers, connecting 3D scene understanding to
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manipulation in complex, unstructured spaces.
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Acting in unstructured environments demands spatial understanding from 3D reconstruction, simultaneous
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localization and mapping (SLAM), and world models that capture both geometry and semantics. We are building
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active-perception pipelines that tie real-time scene reconstruction and object-level mapping to
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manipulation planning. A first step in this direction,
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<a href="/publications/#affordmatcher" class="work-link">AffordMatcher (CVPR'26)</a>,
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learns object affordances in 3D scenes from visual signifiers, connecting 3D scene understanding to where
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and how a robot should act in complex, cluttered spaces.
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</p>
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</div>
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<div class="research-area-image">

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