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Main Authors: Bu, Zhiqi, Xu, Shiyun, Mao, Jialin
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2602.07145
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author Bu, Zhiqi
Xu, Shiyun
Mao, Jialin
author_facet Bu, Zhiqi
Xu, Shiyun
Mao, Jialin
contents Deep learning has non-convex loss landscape and its optimization dynamics is hard to analyze or control. Nevertheless, the dynamics can be empirically convex-like across various tasks, models, optimizers, hyperparameters, etc. In this work, we examine the applicability of convexity and Lipschitz continuity in deep learning, in order to precisely control the loss dynamics via the learning rate schedules. We illustrate that deep learning quickly becomes weakly convex after a short period of training, and the loss is predicable by an upper bound on the last iterate, which further informs the scaling of optimal learning rate. Through the lens of convexity, we build scaling laws of learning rates and losses that extrapolate as much as 80X across training horizons and 70X across model sizes.
format Preprint
id arxiv_https___arxiv_org_abs_2602_07145
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Convex Dominance in Deep Learning I: A Scaling Law of Loss and Learning Rate
Bu, Zhiqi
Xu, Shiyun
Mao, Jialin
Machine Learning
Computation and Language
Optimization and Control
Deep learning has non-convex loss landscape and its optimization dynamics is hard to analyze or control. Nevertheless, the dynamics can be empirically convex-like across various tasks, models, optimizers, hyperparameters, etc. In this work, we examine the applicability of convexity and Lipschitz continuity in deep learning, in order to precisely control the loss dynamics via the learning rate schedules. We illustrate that deep learning quickly becomes weakly convex after a short period of training, and the loss is predicable by an upper bound on the last iterate, which further informs the scaling of optimal learning rate. Through the lens of convexity, we build scaling laws of learning rates and losses that extrapolate as much as 80X across training horizons and 70X across model sizes.
title Convex Dominance in Deep Learning I: A Scaling Law of Loss and Learning Rate
topic Machine Learning
Computation and Language
Optimization and Control
url https://arxiv.org/abs/2602.07145