Author

R. Vera-Rodríguez

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Preprint Sep 2026

Forensic Twins: Self-Supervised Residual Learning for AI-Generated Image Forensics

Detectors of AI-generated images are typically trained using samples from all Generative AI architectures they must catch, and struggle as soon as a new architecture emerges. Recent approaches have explored self-supervised pre-training as an alternative solution, yet standard frameworks work against the forensic task,...

Javier Muñoz-Haro, Ruben Tolosana, Rubén Vera-Rodríguez et al. · 0 citations

Preprint Jul 2026

Comparative Study of Domain-adapted VLMs for General Document Visual Question Answering

The findings demonstrate that while large pretrained VLMs possess strong zero-shot baselines for structured layouts, their performance strongly decreases on visually complex layouts of infographics and slides, and that visual understanding is the main bottleneck for DocVQA, not a lack of knowledge from the VLMs.

Miguel Lopez-Duran, Elena Marrero, Julian Fiérrez et al. · 2 citations