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Domain generalization (DG) aims to learn models that perform well on unseen target domains by training on multiple source domains. Sharpness-Aware Minimization (SAM), known for finding flat minima that improve generalization, has therefore…

机器学习 · 统计学 2025-07-01 Youngjun Song , Youngsik Hwang , Jonghun Lee , Heechang Lee , Dong-Young Lim

Deep neural networks often suffer from poor generalization due to complex and non-convex loss landscapes. Sharpness-Aware Minimization (SAM) is a popular solution that smooths the loss landscape by minimizing the maximized change of…

人工智能 · 计算机科学 2023-07-03 Peng Mi , Li Shen , Tianhe Ren , Yiyi Zhou , Tianshuo Xu , Xiaoshuai Sun , Tongliang Liu , Rongrong Ji , Dacheng Tao

Recent studies on deep neural networks show that flat minima of the loss landscape correlate with improved generalization. Sharpness-aware minimization (SAM) efficiently finds flat regions by updating the parameters according to the…

机器学习 · 计算机科学 2025-02-13 Albert Kjøller Jacobsen , Georgios Arvanitidis

Sharpness-aware minimization (SAM) is known to improve the generalization performance of neural networks. However, it is not widely used in real-world applications yet due to its expensive model perturbation cost. A few variants of SAM have…

机器学习 · 计算机科学 2025-03-19 Sunwoo Lee

Sharpness-Aware Minimization (SAM) improves model generalization but doubles the computational cost of Stochastic Gradient Descent (SGD) by requiring twice the gradient calculations per optimization step. To mitigate this, we propose…

计算机视觉与模式识别 · 计算机科学 2025-10-07 Jiaxin Deng , Junbiao Pang

Regression is fundamental in computer vision and is widely used in various tasks including age estimation, depth estimation, target localization, \etc However, real-world data often exhibits imbalanced distribution, making regression models…

计算机视觉与模式识别 · 计算机科学 2025-08-26 Yahao Liu , Qin Wang , Lixin Duan , Wen Li

Sharpness-Aware Minimization (SAM) enhances generalization by minimizing the maximum training loss within a predefined neighborhood around the parameters. However, its practical implementation approximates this as gradient ascent(s)…

机器学习 · 计算机科学 2026-03-12 Jianlong Chen , Zhiming Zhou

Sharpness-Aware Minimization (SAM) is a recently proposed gradient-based optimizer (Foret et al., ICLR 2021) that greatly improves the prediction performance of deep neural networks. Consequently, there has been a surge of interest in…

机器学习 · 计算机科学 2023-10-24 Yan Dai , Kwangjun Ahn , Suvrit Sra

Sharpness-aware minimization (SAM) has well-documented merits in enhancing generalization of deep neural network models. Accounting for sharpness in the loss function geometry, where neighborhoods of `flat minima' heighten generalization…

机器学习 · 计算机科学 2025-09-03 Bingcong Li , Yilang Zhang , Georgios B. Giannakis

The goal of domain generalization (DG) is to enhance the generalization capability of the model learned from a source domain to other unseen domains. The recently developed Sharpness-Aware Minimization (SAM) method aims to achieve this goal…

计算机视觉与模式识别 · 计算机科学 2023-03-21 Pengfei Wang , Zhaoxiang Zhang , Zhen Lei , Lei Zhang

Sharpness-Aware Minimization (SAM) is an optimization technique designed to improve generalization by favoring flatter loss minima. To achieve this, SAM optimizes a modified objective that penalizes sharpness, using computationally…

机器学习 · 计算机科学 2024-11-05 Nalin Tiwary , Siddarth Aananth

Sharpness Aware Minimization (SAM) enhances performance across various neural architectures and datasets. As models are continually scaled up to improve performance, a rigorous understanding of SAM's scaling behaviour is paramount. To this…

机器学习 · 计算机科学 2025-02-12 Moritz Haas , Jin Xu , Volkan Cevher , Leena Chennuru Vankadara

This paper presents a Domain-Inspired Sharpness-Aware Minimization (DISAM) algorithm for optimization under domain shifts. It is motivated by the inconsistent convergence degree of SAM across different domains, which induces optimization…

计算机视觉与模式识别 · 计算机科学 2024-05-30 Ruipeng Zhang , Ziqing Fan , Jiangchao Yao , Ya Zhang , Yanfeng Wang

Sharpness-Aware Minimization (SAM) aims to improve generalization by minimizing a worst-case perturbed loss over a small neighborhood of model parameters. However, during training, its optimization behavior does not always align with…

机器学习 · 计算机科学 2026-01-16 Hongru Duan , Yongle Chen , Lei Guan

Sharpness-Aware Minimization (SAM) enhances generalization by reducing a Max-Sharpness (MaxS). Despite the practical success, we empirically found that the MAxS behind SAM's generalization enhancements face the "Flatness Indicator Problem"…

计算机视觉与模式识别 · 计算机科学 2024-09-23 Jiaxin Deng , Junbiao Pang , Baochang Zhang , Qingming Huang

Neural networks trained by empirical risk minimization often suffer from overfitting, especially to specific samples or domains, which leads to poor generalization. Curriculum Learning (CL) addresses this issue by selecting training samples…

计算机视觉与模式识别 · 计算机科学 2025-08-27 Hiroaki Aizawa , Yoshikazu Hayashi

Sharpness-Aware Minimization (SAM) has recently emerged as an effective technique for improving DNN robustness to input variations. However, its interplay with the compactness requirements of on-device DNN deployments remains less explored.…

计算机视觉与模式识别 · 计算机科学 2026-01-29 Jialuo He , Huangxun Chen

We consider Sharpness-Aware Minimization (SAM), a gradient-based optimization method for deep networks that has exhibited performance improvements on image and language prediction problems. We show that when SAM is applied with a convex…

机器学习 · 计算机科学 2023-04-12 Peter L. Bartlett , Philip M. Long , Olivier Bousquet

Deep neural networks are often overparameterized and may not easily achieve model generalization. Adversarial training has shown effectiveness in improving generalization by regularizing the change of loss on top of adversarially chosen…

机器学习 · 计算机科学 2022-12-07 Wenxuan Zhou , Fangyu Liu , Huan Zhang , Muhao Chen

Sharpness-Aware Minimization (SAM) has been proven to be an effective optimization technique for improving generalization in overparameterized models. While prior works have explored the implicit regularization of SAM in simple two-core…

机器学习 · 计算机科学 2025-08-15 Tianxiao Cao , Kyohei Atarashi , Hisashi Kashima