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Modern deep learning models are over-parameterized, where the optimization setup strongly affects the generalization performance. A key element of reliable optimization for these systems is the modification of the loss function.…

机器学习 · 计算机科学 2022-12-09 Kayhan Behdin , Qingquan Song , Aman Gupta , David Durfee , Ayan Acharya , Sathiya Keerthi , Rahul Mazumder

Robust regression models in the presence of outliers have significant practical relevance in areas such as signal processing, financial econometrics, and energy management. Many existing robust regression methods, either grounded in…

信号处理 · 电气工程与系统科学 2025-06-30 Pengyang Song , Jue Wang

Sharpness-Aware Minimization (SAM) has proven highly effective in improving model generalization in machine learning tasks. However, SAM employs a fixed hyperparameter associated with the regularization to characterize the sharpness of the…

机器学习 · 计算机科学 2024-12-24 Jinping Zou , Xiaoge Deng , Tao Sun

Implicit feedback, such as user clicks, serves as the primary data source for modern recommender systems. However, click interactions inherently contain substantial noise, including accidental clicks, clickbait-induced interactions, and…

信息检索 · 计算机科学 2026-02-18 Xikai Yang , Yang Wang , Yilin Li , Sebastian Sun

Sharpness-aware minimization (SAM) is a recently proposed method that minimizes the sharpness of the training loss of a neural network. While its generalization improvement is well-known and is the primary motivation, we uncover an…

机器学习 · 计算机科学 2023-10-31 Maksym Andriushchenko , Dara Bahri , Hossein Mobahi , Nicolas Flammarion

The attention mechanisms have been employed in Convolutional Neural Network (CNN) to enhance the feature representation. However, existing attention mechanisms only concentrate on refining the features inside each sample and neglect the…

计算机视觉与模式识别 · 计算机科学 2021-03-30 Qishang Cheng , Hongliang Li , Qingbo Wu , King Ngi Ngan

Recently, learning algorithms motivated from sharpness of loss surface as an effective measure of generalization gap have shown state-of-the-art performances. Nevertheless, sharpness defined in a rigid region with a fixed radius, has a…

机器学习 · 计算机科学 2021-06-30 Jungmin Kwon , Jeongseop Kim , Hyunseo Park , In Kwon Choi

The quality of numerical reconstructions for unknown parameters in inverse problems depends fundamentally on the selection of experimental data. To ensure a robust reconstruction, it is crucial to select data that are sensitive to the…

数值分析 · 数学 2026-04-14 Kathrin Hellmuth , Christian Klingenberg , Qin Li

Precision and Recall are fundamental metrics in machine learning tasks where both accurate predictions and comprehensive coverage are essential, such as in multi-label learning, language generation, medical studies, and recommender systems.…

机器学习 · 计算机科学 2025-10-27 Lee Cohen , Yishay Mansour , Shay Moran , Han Shao

Spatial autoregressive (SAR) models are important tools for studying network effects. However, with an increasing emphasis on data privacy, data providers often implement privacy protection measures that make classical SAR models…

统计方法学 · 统计学 2024-07-30 Danyang Huang , Ziyi Kong , Shuyuan Wu , Hansheng Wang

Sharpness-Aware Minimization (SAM) is a recent optimization framework aiming to improve the deep neural network generalization, through obtaining flatter (i.e. less sharp) solutions. As SAM has been numerically successful, recent papers…

机器学习 · 统计学 2023-05-22 Kayhan Behdin , Rahul Mazumder

Penalized likelihood models are widely used to simultaneously select variables and estimate model parameters. However, the existence of weak signals can lead to inaccurate variable selection, biased parameter estimation, and invalid…

统计方法学 · 统计学 2022-12-13 Yuexia Zhang , Peibei Shi , Zhongyi Zhu , Linbo Wang , Annie Qu

Sharpness-Aware Minimization (SAM) has emerged as a powerful method for improving generalization in machine learning models by minimizing the sharpness of the loss landscape. However, despite its success, several important questions…

最优化与控制 · 数学 2025-03-05 Dimitris Oikonomou , Nicolas Loizou

Recent advances in autoregressive (AR) generative models have produced increasingly powerful systems for media synthesis. Among them, next-scale prediction has emerged as a popular paradigm, where models generate images in a coarse-to-fine…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Gengze Zhou , Chongjian Ge , Hao Tan , Feng Liu , Yicong Hong

Respiratory sound classification is hindered by the limited size, high noise levels, and severe class imbalance of benchmark datasets like ICBHI 2017. While Transformer-based models offer powerful feature extraction capabilities, they are…

音频与语音处理 · 电气工程与系统科学 2025-12-30 Atakan Işık , Selin Vulga Işık , Ahmet Feridun Işık , Mahşuk Taylan

Current transfer learning methods are mainly based on finetuning a pretrained model with target-domain data. Motivated by the techniques from adversarial machine learning (ML) that are capable of manipulating the model prediction via data…

计算机视觉与模式识别 · 计算机科学 2020-07-30 Yun-Yun Tsai , Pin-Yu Chen , Tsung-Yi Ho

Building a predictive model that rapidly adapts to real-time condition monitoring (CM) signals is critical for engineering systems/units. Unfortunately, many current methods suffer from a trade-off between representation power and agility…

机器学习 · 计算机科学 2025-08-25 Seokhyun Chung , Raed Al Kontar

Recently, there has been a surge in interest in developing optimization algorithms for overparameterized models as achieving generalization is believed to require algorithms with suitable biases. This interest centers on minimizing…

机器学习 · 计算机科学 2026-02-05 Behrooz Tahmasebi , Ashkan Soleymani , Dara Bahri , Stefanie Jegelka , Patrick Jaillet

Instruction-following language models are trained to be helpful and safe, yet their safety behavior can deteriorate under benign fine-tuning and worsen under adversarial updates. Existing defenses often offer limited protection or force a…

计算与语言 · 计算机科学 2026-05-12 Jyotin Goel , Souvik Maji , Pratik Mazumder

To address the extremely concerning problem of software vulnerability, system security is often entrusted to Machine Learning (ML) algorithms. Despite their now established detection capabilities, such models are limited by design to…

机器学习 · 计算机科学 2025-10-14 Marco Pintore , Giorgio Piras , Angelo Sotgiu , Maura Pintor , Battista Biggio