activity
20192025
most citedNonlocal Thresholds for Improving the Spatial Resolution of Pixel Detectors

2 citations · 7 across the 6 of their papers we have counts for

collaborators

6 papers

cs.LG2025

Beyond Fixed Tasks: Unsupervised Environment Design for Task-Level Pairs

Daniel Furelos-Blanco, Charles Pert, Frederik Kelbel +3

Training general agents to follow complex instructions (tasks) in intricate environments (levels) remains a core challenge in reinforcement learning. Random sampling of task-level…

cs.LG2024★ 1 cited

Transformers Use Causal World Models in Maze-Solving Tasks

Alex F. Spies, William Edwards, Michael I. Ivanitskiy +5

Recent studies in interpretability have explored the inner workings of transformer models trained on tasks across various domains, often discovering that these networks naturally d…

cs.LG2023★ 2 cited

Structured World Representations in Maze-Solving Transformers

Michael Igorevich Ivanitskiy, Alex F. Spies, Tilman Räuker +9

Transformer models underpin many recent advances in practical machine learning applications, yet understanding their internal behavior continues to elude researchers. Given the siz…

cs.LG2023★ 2 cited

A Configurable Library for Generating and Manipulating Maze Datasets

Michael Igorevich Ivanitskiy, Rusheb Shah, Alex F. Spies +8

Understanding how machine learning models respond to distributional shifts is a key research challenge. Mazes serve as an excellent testbed due to varied generation algorithms offe…

cs.LG2022

Sparse Relational Reasoning with Object-Centric Representations

Alex F. Spies, Alessandra Russo, Murray Shanahan

We investigate the composability of soft-rules learned by relational neural architectures when operating over object-centric (slot-based) representations, under a variety of sparsi…

physics.ins-det2019★ 2 cited

Nonlocal Thresholds for Improving the Spatial Resolution of Pixel Detectors

Benjamin Nachman, Alex Spies

Pixel detectors only record signals above a tuned threshold in order to suppress noise. As sensors become thinner, pitches decrease, and radiation damage reduces the collected char…