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Francesco Vaccarino

5 accepted papers

2026

Bound by semanticity: universal laws governing the generalization-identification tradeoff

ICLR 2026poster

Intelligent systems must form internal representations that support both broad generalization and precise identification. Here, we show that these two goals are fundamentally in tension with one another. We derive closed-form expressions proving that any model whose representations have a finite s…

Cited by 0SourceScholar
2026

Topology and geometry of the learning space of ReLU networks: connectivity and singularities

ICLR 2026poster

Understanding the properties of the parameter space in feed-forward ReLU networks is critical for effectively analyzing and guiding training dynamics. After initialization, training under gradient flow decisively restricts the parameter space to an algebraic variety that emerges from the homogeneous…

Cited by 0SourceScholar
2025

Attributes Shape the Embedding Space of Face Recognition Models

ICML 2025poster

Face Recognition (FR) tasks have made significant progress with the advent of Deep Neural Networks, particularly through margin-based triplet losses that embed facial images into high-dimensional feature spaces. During training, these contrastive losses focus exclusively on identity information as…

2024

Scale-Free Image Keypoints Using Differentiable Persistent Homology

ICML 2024poster

In computer vision, keypoint detection is a fundamental task, with applications spanning from robotics to image retrieval; however, existing learning-based methods suffer from scale dependency, and lack flexibility. This paper introduces a novel approach that leverages Morse theory and persistent ho…

2024

Topological obstruction to the training of shallow ReLU neural networks

NeurIPS 2024poster

Studying the interplay between the geometry of the loss landscape and the optimization trajectories of simple neural networks is a fundamental step for understanding their behavior in more complex settings. This paper reveals the presence of topological obstruction in the loss landscape of shallow R…

Cited by 1SourcePDFScholar