activity
20232026
most citedRough Transformers for Continuous and Efficient Time-Series Modelling

3 citations · 4 across the 8 of their papers we have counts for

collaborators

9 papers

cs.LG2026

A Mechanistic Analysis of Looped Reasoning Language Models

Hugh Blayney, Álvaro Arroyo, Johan Obando-Ceron +4

Reasoning has become a central capability in large language models. Recent research has shown that reasoning performance can be improved by looping an LLM's layers in the latent di…

cs.LG2026

k-Maximum Inner Product Attention for Graph Transformers and the Expressive Power of GraphGPS

Jonas De Schouwer, Haitz Sáez de Ocáriz Borde, Xiaowen Dong

Graph transformers have shown promise in overcoming limitations of traditional graph neural networks, such as oversquashing and difficulties in modeling long-range dependencies. Ho…

cs.LG2025

gLSTM: Mitigating Over-Squashing by Increasing Storage Capacity

Hugh Blayney, Álvaro Arroyo, Xiaowen Dong +1

Graph Neural Networks (GNNs) leverage the graph structure to transmit information between nodes, typically through the message-passing mechanism. While these models have found a wi…

cs.LG2025

Attention Sinks and Compression Valleys in LLMs are Two Sides of the Same Coin

Enrique Queipo-de-Llano, Álvaro Arroyo, Federico Barbero +4

Attention sinks and compression valleys have attracted significant attention as two puzzling phenomena in large language models, but have been studied in isolation. In this work, w…

cs.LG2025

Return of ChebNet: Understanding and Improving an Overlooked GNN on Long Range Tasks

Ali Hariri, Álvaro Arroyo, Alessio Gravina +6

ChebNet, one of the earliest spectral GNNs, has largely been overshadowed by Message Passing Neural Networks (MPNNs), which gained popularity for their simplicity and effectiveness…

stat.ML2024

Rough Transformers: Lightweight and Continuous Time Series Modelling through Signature Patching

Fernando Moreno-Pino, Álvaro Arroyo, Harrison Waldon +2

Time-series data in real-world settings typically exhibit long-range dependencies and are observed at non-uniform intervals. In these settings, traditional sequence-based recurrent…

stat.ML2024★ 3 cited

Rough Transformers for Continuous and Efficient Time-Series Modelling

Fernando Moreno-Pino, Álvaro Arroyo, Harrison Waldon +2

Time-series data in real-world medical settings typically exhibit long-range dependencies and are observed at non-uniform intervals. In such contexts, traditional sequence-based re…

cs.LG2023★ 1 cited

Neural Latent Geometry Search: Product Manifold Inference via Gromov-Hausdorff-Informed Bayesian Optimization

Haitz Saez de Ocariz Borde, Alvaro Arroyo, Ismael Morales +2

Recent research indicates that the performance of machine learning models can be improved by aligning the geometry of the latent space with the underlying data structure. Rather th…

cs.LG2023

Gromov-Hausdorff Distances for Comparing Product Manifolds of Model Spaces

Haitz Saez de Ocariz Borde, Alvaro Arroyo, Ismael Morales +2

Recent studies propose enhancing machine learning models by aligning the geometric characteristics of the latent space with the underlying data structure. Instead of relying solely…