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Sadhika Malladi

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#machine learning Preprint Oct 2026

The Best Optimizer Depends on Batch Size

A plethora of new adaptive optimizers are designed to efficiently estimate and use minibatch gradient statistics to shape parameter updates, but they are typically benchmarked at a single batch size. Hyperparameter scaling rules promise to preserve performance as batch size and gradient noise change, suggesting that th...

Xing-Yu Dang, Kai-Yue Wen, Sadhika Malladi · 0 citations
Preprint Aug 2026

TailSFT: Filtered Fine-Tuning Improves Post-Training Performance

A simple modification to supervised fine-tuning, TailSFT, which filters out already fit sequences during training, thereby focusing learning on under-modeled regions, or the tail, of the data distribution, and introduces a lightweight diagnostic for identifying settings where TailSFT is most likely to help.

Sadhika Malladi, Samy Jelassi, Dylan J. Foster et al. · 2 citations

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