Author

Gianni Franchi

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Preprint Sep 2026

Generative Uncertainty as a Self-supervised Signal for Semantic Similarity Learning

Evaluating semantic similarity between videos is a fundamental challenge in computer vision, essential for tasks ranging from out-of-distribution (OOD) detection to video retrieval. However, defining and labeling video similarity is notoriously difficult and expensive due to the complex spatio-temporal nature. In this...

Enrico Pallotta, Sina Raoufi, Lars Doorenbos et al. · 0 citations

#artificial intelligence Preprint Sep 2026

Semantic Uncertainty Quantification Needs Factual Equivalence

Semantic uncertainty quantification for large language models rests on a common template: sample several answers, measure how much they agree, and treat disagreement as uncertainty. We first formalize this template as two separate roles: an operator that compares two answers, and an aggregator that combines all pairwis...

Joseph Hoche, Quentin Guimard, Gianni Franchi · 0 citations