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Alexandru Meterez

4 accepted papers

2026

Seesaw: Accelerating Training by Balancing Batch Size and Learning Rate Scheduling

ICLR 2026poster

Increasing the batch size during training --- a “batch ramp'' --- is a promising strategy to accelerate large language model pretraining. While for SGD, doubling the batch size can be equivalent to halving the learning rate, the optimal strategy for adaptive optimizers like Adam is less clear. As a…

Cited by 0SourceScholar
2025

The Optimization Landscape of SGD Across the Feature Learning Strength

ICLR 2025poster

We consider neural networks (NNs) where the final layer is down-scaled by a fixed hyperparameter $\gamma$. Recent work has identified $\gamma$ as controlling the strength of feature learning. As $\gamma$ increases, network evolution changes from "lazy" kernel dynamics to "rich" feature-learning dyn…

Cited by 5SourcePDFScholar
2024

Super Consistency of Neural Network Landscapes and Learning Rate Transfer

NeurIPS 2024poster

Recently, there has been growing evidence that if the width and depth of a neural network are scaled toward the so-called rich feature learning limit ($\mu$P and its depth extension), then some hyperparameters --- such as the learning rate --- exhibit transfer from small to very large models. From a…

Cited by 2SourcePDFScholar
2024

Towards Training Without Depth Limits: Batch Normalization Without Gradient Explosion

ICLR 2024poster

Normalization layers are one of the key building blocks for deep neural networks. Several theoretical studies have shown that batch normalization improves the signal propagation, by avoiding the representations from becoming collinear across the layers. However, results on mean-field theory of batch…