activity
20232025
collaborators

5 papers

cs.LG2025

Why Prototypes Collapse: Diagnosing and Preventing Partial Collapse in Prototypical Self-Supervised Learning

Gabriel Y. Arteaga, Marius Aasan, Rwiddhi Chakraborty +4

Prototypical self-supervised learning methods consistently suffer from partial prototype collapse, where multiple prototypes converge to nearly identical representations. This unde…

cs.CV2025

Self-Organizing Visual Prototypes for Non-Parametric Representation Learning

Thalles Silva, Helio Pedrini, Adín Ramírez Rivera

We present Self-Organizing Visual Prototypes (SOP), a new training technique for unsupervised visual feature learning. Unlike existing prototypical self-supervised learning (SSL) m…

cs.CV2024

Learning from Memory: Non-Parametric Memory Augmented Self-Supervised Learning of Visual Features

Thalles Silva, Helio Pedrini, Adín Ramírez Rivera

This paper introduces a novel approach to improving the training stability of self-supervised learning (SSL) methods by leveraging a non-parametric memory of seen concepts. The pro…

cs.CV2023

Representation Learning via Consistent Assignment of Views over Random Partitions

Thalles Silva, Adín Ramírez Rivera

We present Consistent Assignment of Views over Random Partitions (CARP), a self-supervised clustering method for representation learning of visual features. CARP learns prototypes…

cs.CV2023

Self-supervised Learning of Contextualized Local Visual Embeddings

Thalles Santos Silva, Helio Pedrini, Adín Ramírez Rivera

We present Contextualized Local Visual Embeddings (CLoVE), a self-supervised convolutional-based method that learns representations suited for dense prediction tasks. CLoVE deviate…