publications

The research I've been doing.

2026

  1. Native Hierarchical and Compositional Representations with Subspace Embeddings
    Gabriel Moreira, Zita Marinho, Manuel Marques, João Paulo Costeira, and Chenyan Xiong
    In Proceedings of the 32nd ACM SIGKDD Conference on Knowledge Discovery and Data Mining V. 2 , 2026
  2. Spectral Guidance for Flexible and Efficient Control of Diffusion Models
    Gabriel Moreira, Manuel Marques, João Paulo Costeira, and Chenyan Xiong
    In International Conference on Machine Learning , 2026

2025

  1. Learning Visual-Semantic Subspace Representations
    Gabriel Moreira, Manuel Marques, Joao Costeira, and Alexander G Hauptmann
    In International Conference on Artificial Intelligence and Statistics , 2025
    PDF

2024

  1. WACV
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    Hyperbolic vs Euclidean Embeddings in Few-Shot Learning: Two Sides of the Same Coin
    Gabriel Moreira, Manuel Marques, João Paulo Costeira, and Alexander Hauptmann
    In Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision (WACV) , 2024
    PDF Video
  2. ICRA
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    VICAN: Very Efficient Calibration Algorithm for Large Camera Networks
    Gabriel Moreira, Manuel Marques, João Paulo Costeira, and Alexander Hauptmann
    In Proceedings of the IEEE International Conference on Robotics and Automation (ICRA) , 2024
    PDF Video

2023

  1. Fill in the blank for fashion complementary outfit product Retrieval: VISUM summer school competition
    Eduardo Castro, Pedro M Ferreira, Ana Rebelo, Isabel Rio-Torto, Leonardo Capozzi, Mafalda Falcão Ferreira, Tiago Gonçalves, Tomé Albuquerque, Wilson Silva, Carolina Afonso, and  others
    Machine vision and applications, 2023

2021

  1. WACV
    wacv21.png
    Fast pose graph optimization via Krylov-Schur and Cholesky factorization
    Gabriel Moreira, Manuel Marques, and João Paulo Costeira
    In Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision (WACV) , 2021
    PDF Video
  2. ICCV
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    Rotation averaging in a split second: A primal-dual method and a closed-form for cycle graphs
    Gabriel Moreira, Manuel Marques, and João Paulo Costeira
    In Proceedings of the IEEE/CVF International Conference on Computer Vision (ICCV) , 2021
    PDF Video