Author

J. Fiérrez

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Jul 2026

Unraveling Machine Behavior by Multi-Level Bias Analysis and Detection: Methodology and Application to Computer Vision

Three bias detection approaches are proposed, which characterizes the latent space prior to the final classification layer using neighbor-probability distributions and quantifies bias with the two-sample Kolmogorov-Smirnov test on the per-group distributions.

Ignacio Serna, Aythami Morales, J. Fiérrez · arXiv.org · 3 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