publications

2025

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    Fast Flow-based Visuomotor Policies via Conditional Optimal Transport Couplings
    Andreas Sochopoulos , Nikolay Malkin , Nikolaos Tsagkas , João Moura , Michael Gienger , and Sethu Vijayakumar
    In ArXiv Preprint , 2025
    arXiv HTML Code
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    When Pre-trained Visual Representations Fall Short: Limitations in Visuo-Motor Robot Learning [Oral EAI@CVPR25]
    Nikolaos Tsagkas , Andreas Sochopoulos , Duolikun Danier , Chris Xiaoxuan Lu , and Oisin Mac Aodha
    In ArXiv Preprint , 2025
    arXiv HTML Code
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    Learning Precise Affordances from Egocentric Videos for Robotic Manipulation
    Gen Li , Nikolaos Tsagkas , Jifei Song , Ruaridh Mon-Williams , Sethu Vijayakumar , Kun Shao , and Laura Sevilla-Lara
    In IEEE/CVF International Conference on Computer Vision (ICCV), Hawaii, USA , 2025
    arXiv HTML

2024

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    Click to Grasp: Zero-Shot Precise Manipulation via Visual Diffusion Descriptors [Oral Pitch + Poster]
    Nikolaos Tsagkas , Jack Rome , Subramanian Ramamoorthy , Oisin Mac Aodha , and Chris Xiaoxuan Lu
    In IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), Abu Dhabi, UAE , 2024
    arXiv HTML Code

2023

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    VL-Fields: Towards Language-Grounded Neural Implicit Spatial Representations [Spotlight Talk + Poster]
    Nikolaos Tsagkas , Oisin Mac Aodha , and Chris Xiaoxuan Lu
    In International Conference on Robotics and Automation (ICRA) Workshops, London, UK , 2023
    arXiv HTML
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    Inference and Learning for Generative Capsule Models
    Alfredo Nazabal* , Nikolaos Tsagkas* , and Christopher K. I. Williams
    Neural Computation, 2023
    arXiv Code

2022

  1. Inference for Generative Capsule Models
    Alfredo Nazabal , Nikolaos Tsagkas , and Christopher K. I. Williams
    ArXiv Preprint, 2022

2019

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    On the Use of Deeper CNNs in Hand Gesture Recognition Based on sEMG Signals [Oral Presentation]
    Nikolaos Tsagkas , Panagiotis Tsinganos , and Athanassios Skodras
    In 10th International Conference on Information, Intelligence, Systems and Applications (IISA), Patras, Greece , 2019
    PDF Code