activity
20242026
most citedNIMBA: Towards Robust and Principled Processing of Point Clouds With SSMs

1 citations · 1 across the 21 of their papers we have counts for

collaborators

26 papers

cs.LG2026

A Quadratic Lens on Muon's Polar Update: Benefits, Pitfalls, and the Role of Newton-Schulz

Egor Shulgin, Sam Laing, Antonio Orvieto +1

Muon updates matrix-valued parameters along approximately orthogonalized directions and often trains large language models faster than AdamW, yet it remains unclear when and why or…

cs.LG2026

Complex KDA: Understanding and Enhancing the Expressivity of Kimi Delta Attention

Julien Siems, Riccardo Grazzi, Korbinian Pöppel +8

Linear RNNs based on the delta-rule enable efficient sequence modeling, but their linear updates with a low-rank correction constrain their expressivity. Prior work has shown that…

cs.LG2026

How the Hessian-Spectrum of Neural Networks Depends on Data

Jasraj Singh, Enea Monzio Compagnoni, Antonio Orvieto

The Hessian matrix is an important quantity of interest when it comes to studying the loss landscape and optimization dynamics in deep learning, as well as designing measures of ge…

cs.LG2026

Beyond a Single Explanation of the Adam--SGD Gap

Chenxiang Zhang, Rustem Islamov, Enea Monzio Compagnoni +3

Prior work has identified several factors that can contribute to the performance gap between Adam and SGD, spanning data aspects, architecture design, and optimization properties.…

cs.LG2026

GRASP: Deterministic argument ranking in interaction graphs

Diganta Misra, Antonio Orvieto, Rediet Abebe +1

Large language models are increasingly deployed as automated judges to evaluate the strength of arguments. As this role expands, their legitimacy depends on consistency, transparen…

cs.LG2026

Muown: Row-Norm Control for Muon Optimization

Kai Lion, Florian Hübler, Bingcong Li +2

Muon has emerged as a strong competitor to AdamW for language model pre-training, yet its behavior at scale is sensitive to weight decay. Recent work has observed that, for Muon wi…

cs.LG2026

Deriving Hyperparameter Scaling Laws via Modern Optimization Theory

Egor Shulgin, Dimitri von Rütte, Tianyue H. Zhang +3

Hyperparameter transfer has become an important component of modern large-scale training recipes. Existing methods, such as muP, primarily focus on transfer between model sizes, wi…

cs.LG2026

GASP: Guided Asymmetric Self-Play For Coding LLMs

Swadesh Jana, Cansu Sancaktar, Tomáš Daniš +3

Asymmetric self-play has emerged as a promising paradigm for post-training large language models, where a teacher continually generates questions for a student to solve at the edge…

cs.LG2026

Improved state mixing in higher-order and block diagonal linear recurrent networks

Igor Dubinin, Antonio Orvieto, Felix Effenberger

Linear recurrent networks (LRNNs) and linear state space models (SSMs) promise computational and memory efficiency on long-sequence modeling tasks, yet their diagonal state transit…

cs.LG2025

Scaling Behavior of Discrete Diffusion Language Models

Dimitri von Rütte, Janis Fluri, Omead Pooladzandi +3

Modern LLM pre-training consumes vast amounts of compute and training data, making the scaling behavior, or scaling laws, of different models a key distinguishing factor. Discrete…

cs.LG2025

Adam Simplified: Bias Correction Debunked

Sam Laing, Antonio Orvieto

The Adam optimizer is a cornerstone of modern deep learning, yet the empirical necessity of each of its individual components is often taken for granted. This paper presents a focu…

cs.CL2025

Selective Rotary Position Embedding

Sajad Movahedi, Timur Carstensen, Arshia Afzal +3

Position information is essential for language modeling. In softmax transformers, Rotary Position Embeddings (\textit{RoPE}) encode positions through \textit{fixed-angle} rotations…

cs.LG2025

How does the optimizer implicitly bias the model merging loss landscape?

Chenxiang Zhang, Alexander Theus, Damien Teney +3

Model merging combines independent solutions with different capabilities into a single one while maintaining the same inference cost. Two popular approaches are linear interpolatio…

cs.LG2025

Enhancing Optimizer Stability: Momentum Adaptation of The NGN Step-size

Rustem Islamov, Niccolo Ajroldi, Antonio Orvieto +1

Modern optimization algorithms that incorporate momentum and adaptive step-size offer improved performance in numerous challenging deep learning tasks. However, their effectiveness…

cs.LG2025

Revisiting associative recall in modern recurrent models

Destiny Okpekpe, Antonio Orvieto

Despite the advantageous subquadratic complexity of modern recurrent deep learning models -- such as state-space models (SSMs) -- recent studies have highlighted their potential sh…

cs.LG2025

Is your batch size the problem? Revisiting the Adam-SGD gap in language modeling

Teodora Srećković, Jonas Geiping, Antonio Orvieto

Adam is known to perform significantly better than Stochastic Gradient Descent (SGD) in language models, a phenomenon for which a number of explanations have been proposed. In this…

cs.LG2025

Generalized Linear Mode Connectivity for Transformers

Alexander Theus, Alessandro Cabodi, Sotiris Anagnostidis +3

Understanding the geometry of neural network loss landscapes is a central question in deep learning, with implications for generalization and optimization. A striking phenomenon is…

cs.LG2025

On the Interaction of Batch Noise, Adaptivity, and Compression, under -Smoothness: An SDE Approach

Enea Monzio Compagnoni, Rustem Islamov, Frank Norbert Proske +3

Distributed stochastic optimization intertwines (i) stochastic gradient noise, (ii) communication compression, and (iii) adaptive/normalized updates. While each factor has been stu…

cs.LG2025

In Search of Adam's Secret Sauce

Antonio Orvieto, Robert M. Gower

Understanding the remarkable efficacy of Adam when training transformer-based language models has become a central research topic within the optimization community. To gain deeper…

cs.LG2025

Can you Finetune your Binoculars? Embedding Text Watermarks into the Weights of Large Language Models

Fay Elhassan, Niccolò Ajroldi, Antonio Orvieto +1

The indistinguishability of AI-generated content from human text raises challenges in transparency and accountability. While several methods exist to watermark models behind APIs,…

cs.LG2025

Fixed-Point RNNs: Interpolating from Diagonal to Dense

Sajad Movahedi, Felix Sarnthein, Nicola Muca Cirone +1

Linear recurrent neural networks (RNNs) and state-space models (SSMs) such as Mamba have become promising alternatives to softmax-attention as sequence mixing layers in Transformer…

cs.LG2025

When, Where and Why to Average Weights?

Niccolò Ajroldi, Antonio Orvieto, Jonas Geiping

Averaging checkpoints along the training trajectory is a simple yet powerful approach to improve the generalization performance of Machine Learning models and reduce training time.…

cs.LG2024

Adaptive Methods through the Lens of SDEs: Theoretical Insights on the Role of Noise

Enea Monzio Compagnoni, Tianlin Liu, Rustem Islamov +3

Despite the vast empirical evidence supporting the efficacy of adaptive optimization methods in deep learning, their theoretical understanding is far from complete. This work intro…

cs.CV2024★ 1 cited

NIMBA: Towards Robust and Principled Processing of Point Clouds With SSMs

Nursena Köprücü, Destiny Okpekpe, Antonio Orvieto

Transformers have become dominant in large-scale deep learning tasks across various domains, including text, 2D and 3D vision. However, the quadratic complexity of their attention…