activity
20242026
most citedHyperSteiner: Computing Heuristic Hyperbolic Steiner Minimal Trees

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

collaborators

9 papers

cs.LG2026

RoVE: Rotary Value Embeddings Attention for Relative Position-dependent Value Pathways

Alejandro García-Castellanos, Maurice Weiler, Erik J Bekkers

Rotary Position Embeddings (RoPE) make attention scores position-relative but leave the value pathway position-blind: the message sent by a value token is the same regardless of it…

cs.LG2026

Generalized Reduction to the Isotropy for Flexible Equivariant Neural Fields

Alejandro García-Castellanos, Gijs Bellaard, Remco Duits +2

Many geometric learning problems require invariants on heterogeneous product spaces, i.e., products of distinct spaces carrying different group actions, where standard techniques d…

cs.LG2025

Symmetry-Aware Graph Metanetwork Autoencoders: Model Merging through Parameter Canonicalization

Odysseas Boufalis, Jorge Carrasco-Pollo, Joshua Rosenthal +2

Neural network parameterizations exhibit inherent symmetries that yield multiple equivalent minima within the loss landscape. Scale Graph Metanetworks (ScaleGMNs) explicitly levera…

cs.AI2025

Symmetry-Aware Fully-Amortized Optimization with Scale Equivariant Graph Metanetworks

Bart Kuipers, Freek Byrman, Daniel Uyterlinde +1

Amortized optimization accelerates the solution of related optimization problems by learning mappings that exploit shared structure across problem instances. We explore the use of…

cs.CG2025

Randomized HyperSteiner: A Stochastic Delaunay Triangulation Heuristic for the Hyperbolic Steiner Minimal Tree

Aniss Aiman Medbouhi, Alejandro García-Castellanos, Giovanni Luca Marchetti +3

We study the problem of constructing Steiner Minimal Trees (SMTs) in hyperbolic space. Exact SMT computation is NP-hard, and existing hyperbolic heuristics such as HyperSteiner are…

cs.LG2025

Equivariant Eikonal Neural Networks: Grid-Free, Scalable Travel-Time Prediction on Homogeneous Spaces

Alejandro García-Castellanos, David R. Wessels, Nicky J. van den Berg +3

We introduce Equivariant Neural Eikonal Solvers, a novel framework that integrates Equivariant Neural Fields (ENFs) with Neural Eikonal Solvers. Our approach employs a single neura…