activity
20222026
most citedSymplectic Momentum Neural Networks -- Using Discrete Variational Mechanics as a prior in Deep Learning

1 citations · 2 across the 8 of their papers we have counts for

collaborators

8 papers

cs.LG2026

Sparse Attention as Compact Kernel Regression

Saul Santos, Nuno Gonçalves, Daniel C. McNamee +2

Recent work has revealed a link between self-attention mechanisms in transformers and test-time kernel regression via the Nadaraya-Watson estimator, with standard softmax attention…

cs.LG2025

TowerVision: Understanding and Improving Multilinguality in Vision-Language Models

André G. Viveiros, Patrick Fernandes, Saul Santos +7

Despite significant advances in vision-language models (VLMs), most existing work follows an English-centric design process, limiting their effectiveness in multilingual settings.…

cs.CV2025

How Well Do Vision-Language Models Understand Movies?

Emmanouil Zaranis, António Farinhas, Saul Santos +28

Vision-language models (VLMs) can increasingly handle extended contexts and answer questions about long videos--but can they understand the narrative structure of movies as humans…

cs.LG2025

Modern Hopfield Networks with Continuous-Time Memories

Saul Santos, António Farinhas, Daniel C. McNamee +1

Recent research has established a connection between modern Hopfield networks (HNs) and transformer attention heads, with guarantees of exponential storage capacity. However, these…

cs.CV2025

-Video: A Training-Free Approach to Long Video Understanding via Continuous-Time Memory Consolidation

Saul Santos, António Farinhas, Daniel C. McNamee +1

Current video-language models struggle with long-video understanding due to limited context lengths and reliance on sparse frame subsampling, often leading to information loss. Thi…

cs.LG2024

Hopfield-Fenchel-Young Networks: A Unified Framework for Associative Memory Retrieval

Saul Santos, Vlad Niculae, Daniel McNamee +1

Associative memory models, such as Hopfield networks and their modern variants, have garnered renewed interest due to advancements in memory capacity and connections with self-atte…

cs.LG2024★ 1 cited

Sparse and Structured Hopfield Networks

Saul Santos, Vlad Niculae, Daniel McNamee +1

Modern Hopfield networks have enjoyed recent interest due to their connection to attention in transformers. Our paper provides a unified framework for sparse Hopfield networks by e…

cs.LG2022★ 1 cited

Symplectic Momentum Neural Networks -- Using Discrete Variational Mechanics as a prior in Deep Learning

Saul Santos, Monica Ekal, Rodrigo Ventura

With deep learning gaining attention from the research community for prediction and control of real physical systems, learning important representations is becoming now more than e…