activity
20242026
collaborators

6 papers

cs.CV2026

Toward a More Ethical Facial Age Estimation: A Generalized Zero-Shot Benchmark Without Training on Children's Data

Caio Petrucci, Leo Sampaio Ferraz Ribeiro, Sandra Avila

Age estimation from facial images typically relies on training data that includes images of minors, a practice that raises ethical, legal, and privacy concerns and that child-data…

cs.CV2026

CSA-Graphs: A Privacy-Preserving Structural Dataset for Child Sexual Abuse Research

Carlos Caetano, Camila Laranjeira, Clara Ernesto +5

Child Sexual Abuse Imagery (CSAI) classification is an important yet challenging problem for computer vision research due to the strict legal and ethical restrictions that prevent…

cs.CV2025

Transformed Multi-view 3D Shape Features with Contrastive Learning

Márcus Vinícius Lobo Costa, Sherlon Almeida da Silva, Bárbara Caroline Benato +2

This paper addresses the challenges in representation learning of 3D shape features by investigating state-of-the-art backbones paired with both contrastive supervised and self-sup…

cs.LG2025

Minimizing Risk Through Minimizing Model-Data Interaction: A Protocol For Relying on Proxy Tasks When Designing Child Sexual Abuse Imagery Detection Models

Thamiris Coelho, Leo S. F. Ribeiro, João Macedo +2

The distribution of child sexual abuse imagery (CSAI) is an ever-growing concern of our modern world; children who suffered from this heinous crime are revictimized, and the growin…

cs.CV2025

Neglected Risks: The Disturbing Reality of Children's Images in Datasets and the Urgent Call for Accountability

Carlos Caetano, Gabriel O. dos Santos, Caio Petrucci +6

Including children's images in datasets has raised ethical concerns, particularly regarding privacy, consent, data protection, and accountability. These datasets, often built by sc…

cs.CV2024

Leveraging Self-Supervised Learning for Scene Classification in Child Sexual Abuse Imagery

Pedro H. V. Valois, João Macedo, Leo S. F. Ribeiro +2

Crime in the 21st century is split into a virtual and real world. However, the former has become a global menace to people's well-being and security in the latter. The challenges i…