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Bettina Messmer

4 accepted papers

2025

Enhancing Multilingual LLM Pretraining with Model-Based Data Selection

NeurIPS 2025poster

Dataset curation has become a basis for strong large language model (LLM) performance. While various rule-based filtering heuristics exist for English and multilingual datasets, model-based filtering techniques have primarily focused on English. To address the disparity stemming from limited researc…

Cited by 0SourceScholar
2025

On-Device Collaborative Language Modeling via a Mixture of Generalists and Specialists

ICML 2025poster

On-device LLMs have gained increasing attention for their ability to enhance privacy and provide a personalized user experience. To facilitate private learning with scarce data, Federated Learning has become a standard approach. However, it faces challenges such as computational resource heterogenei…

2024

Analyzing & Reducing the Need for Learning Rate Warmup in GPT Training

NeurIPS 2024poster

Learning Rate Warmup is a popular heuristic for training neural networks, especially at larger batch sizes, despite limited understanding of its benefits. Warmup decreases the update size $\Delta \mathbf{w}_t = \eta_t \mathbf{u}_t$ early in training by using lower values for the learning rate $\eta_…

Cited by 3SourcePDFScholar
2024

Rotational Equilibrium: How Weight Decay Balances Learning Across Neural Networks

ICML 2024poster

This study investigates how weight decay affects the update behavior of individual neurons in deep neural networks through a combination of applied analysis and experimentation. Weight decay can cause the expected magnitude and angular updates of a neuron's weight vector to converge to a steady stat…

Cited by 10SourcePDFScholar