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Hiroki Naganuma

6 accepted papers

2026

Adaptive Batch Sizes Using Non-Euclidean Gradient Noise Scales for Stochastic Sign and Spectral Descent

ICML 2026poster

To maximize hardware utilization, modern machine learning systems typically employ large constant or manually tuned batch size schedules, relying on heuristics that are brittle and costly to tune. Existing adaptive strategies based on gradient noise scale (GNS) offer a principled alternative. Howeve…

Cited by 0SourceScholar
2026

DisTaC: Conditioning Task Vectors via Distillation for Robust Model Merging

ICLR 2026poster

Model merging has emerged as an efficient and flexible paradigm for multi-task learning, with numerous methods being proposed in recent years. However, these state-of-the-art techniques are typically evaluated on benchmark suites that are highly favorable to model merging, and their robustness in m…

Cited by 0SourcecodeScholar
2026

On Fairness of Task Arithmetic: The Role of Task Vectors

ICLR 2026poster

Model editing techniques, particularly task arithmetic with task vectors, offer an efficient alternative to full fine-tuning by enabling direct parameter updates through simple arithmetic operations. While this approach promises substantial computational savings, its impact on fairness has remained…

Cited by 0SourceScholar
2025

Mastering Task Arithmetic: $\tau$Jp as a Key Indicator for Weight Disentanglement

ICLR 2025poster

Model-editing techniques using task arithmetic have rapidly gained attention. Through task arithmetic, simply through arithmetic operations on the weights of pre-trained and fine-tuned models create desired models, such as multi-task models, models in which specific tasks are unsolvable, or domain-t…

2024

No Wrong Turns: The Simple Geometry Of Neural Networks Optimization Paths

ICML 2024poster

Understanding the optimization dynamics of neural networks is necessary for closing the gap between theory and practice. Stochastic first-order optimization algorithms are known to efficiently locate favorable minima in deep neural networks. This efficiency, however, contrasts with the non-convex an…