collaborators

9 papers

cs.CL2026

ZetaGPT: A Reference Implementation of Positional--Encoding--Free State--Space--Attention Language Models

Róisín Luo

Transformer-based language models rely on self-attention, whose computation is permutation-equivariant and therefore lacks an intrinsic mechanism for representing token order. Exis…

stat.ML2026

Lipschitz Continuity in Deep Learning: A Systematic Review of Theoretical Foundations, Estimation Methods, Regularization Approaches, and Certifiable Robustness

Róisín Luo, James McDermott, Colm O'Riordan

Lipschitz continuity is a fundamental property of neural networks that characterizes their sensitivity to input perturbations. It plays a pivotal role in deep learning, governing \…

cs.LG2026

Principles of Lipschitz continuity in neural networks

Róisín Luo

Deep learning has achieved remarkable success across a wide range of domains, significantly expanding the frontiers of what is achievable in artificial intelligence. Yet, despite t…

stat.ML2026

A Stochastic--Geometric Theory of Scaling Laws in Grokking

Róisín Luo, Christian Gagné, Jonas Ngnawé +2

Delayed generalization (\ie~grokking) refers to the phenomenon in which a neural network fits its training data early in training but only begins to generalize after a prolonged de…

cs.AI2026

Interpreting Global Perturbation Robustness of Image Models using Axiomatic Spectral Importance Decomposition

Róisín Luo, James McDermott, Colm O'Riordan

Perturbation robustness evaluates the vulnerabilities of models, arising from a variety of perturbations, such as data corruptions and adversarial attacks. Understanding the mechan…

cs.CV2026

Reclaiming Residual Knowledge: A Novel Paradigm to Low-Bit Quantization

Róisín Luo, Alexandru Drimbarean, James McDermott +1

This paper explores a novel paradigm in low-bit (i.e. 4-bits or lower) quantization, differing from existing state-of-the-art methods, by framing optimal quantization as an archite…