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The problem of blind image super-resolution aims to recover high-resolution (HR) images from low-resolution (LR) images with unknown degradation modes. Most existing methods model the image degradation process using blur kernels. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-06-25 Junxiong Lin , Zeng Tao , Xuan Tong , Xinji Mai , Haoran Wang , Boyang Wang , Yan Wang , Qing Zhao , Jiawen Yu , Yuxuan Lin , Shaoqi Yan , Shuyong Gao , Wenqiang Zhang

Amplification by subsampling is one of the main primitives in machine learning with differential privacy (DP): Training a model on random batches instead of complete datasets results in stronger privacy. This is traditionally formalized via…

Cryptography and Security · Computer Science 2024-11-04 Jan Schuchardt , Mihail Stoian , Arthur Kosmala , Stephan Günnemann

We study fast algorithms for statistical regression problems under the strong contamination model, where the goal is to approximately optimize a generalized linear model (GLM) given adversarially corrupted samples. Prior works in this line…

Data Structures and Algorithms · Computer Science 2021-06-23 Arun Jambulapati , Jerry Li , Tselil Schramm , Kevin Tian

This paper introduces a circle detection method based on Differential Evolution (DE) optimization. Just as circle detection has been lately considered as a fundamental component for many computer vision algorithms, DE has evolved as a…

Computer Vision and Pattern Recognition · Computer Science 2014-05-30 Erik Cuevas , Daniel Zaldivar , Marco Perez , Marte Ramirez

Semantic segmentation models classifying hyperspectral images (HSI) are vulnerable to adversarial examples. Traditional approaches to adversarial robustness focus on training or retraining a single network on attacked data, however, in the…

Machine Learning · Computer Science 2023-05-12 Nicholas Soucy , Salimeh Yasaei Sekeh

Robust self-training (RST) can augment the adversarial robustness of image classification models without significantly sacrificing models' generalizability. However, RST and other state-of-the-art defense approaches failed to preserve the…

Image and Video Processing · Electrical Eng. & Systems 2022-05-05 Shoukun Sun , Min Xian , Aleksandar Vakanski , Hossny Ghanem

Muscle-actuated organisms are capable of learning an unparalleled diversity of dexterous movements despite their vast amount of muscles. Reinforcement learning (RL) on large musculoskeletal models, however, has not been able to show similar…

Robotics · Computer Science 2023-04-28 Pierre Schumacher , Daniel Häufle , Dieter Büchler , Syn Schmitt , Georg Martius

Precise estimation of treatment effects is crucial for evaluating intervention effectiveness. While deep learning models have exhibited promising performance in learning counterfactual representations for treatment effect estimation (TEE),…

Machine Learning · Computer Science 2024-01-24 Seungyeon Lee , Ruoqi Liu , Wenyu Song , Lang Li , Ping Zhang

In this article, we construct a numerical method for a stochastic version of the Susceptible Infected Susceptible (SIS) epidemic model, expressed by a suitable stochastic differential equation (SDE), by using the semi-discrete method to a…

Numerical Analysis · Mathematics 2023-07-28 Yiannis Kiouvrekis , Ioannis S. Stamatiou

Algorithms based on multiple decoding attempts of Reed-Solomon (RS) codes have recently attracted new attention. Choosing decoding candidates based on rate-distortion (R-D) theory, as proposed previously by the authors, currently provides…

Information Theory · Computer Science 2016-11-17 Phong S. Nguyen , Henry D. Pfister , Krishna R. Narayanan

Deep learning has become an increasingly popular and powerful methodology for modern pattern recognition systems. However, many deep neural networks have millions or billions of parameters, making them untenable for real-world applications…

Machine Learning · Computer Science 2022-02-14 Manoj Alwani , Yang Wang , Vashisht Madhavan

Deep Ensembles (DE) are a prominent approach for achieving excellent performance on key metrics such as accuracy, calibration, uncertainty estimation, and out-of-distribution detection. However, hardware limitations of real-world systems…

Group-based policy optimization methods like GRPO and GSPO have become standard for training multimodal models, leveraging group-wise rollouts and relative advantage estimation. However, they suffer from a critical \emph{gradient vanishing}…

Machine Learning · Computer Science 2025-11-25 Zengjie Hu , Jiantao Qiu , Tianyi Bai , Haojin Yang , Binhang Yuan , Qi Jing , Conghui He , Wentao Zhang

To enhance group robustness to spurious correlations, prior work often relies on auxiliary group annotations and assumes identical sets of groups across training and test domains. To overcome these limitations, we propose to leverage…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Chenruo Liu , Hongjun Liu , Zeyu Lai , Yiqiu Shen , Chen Zhao , Qi Lei

The estimation of probability density functions is a fundamental problem in science and engineering. However, common methods such as kernel density estimation (KDE) have been demonstrated to lack robustness, while more complex methods have…

Machine Learning · Computer Science 2025-06-30 Anna Mészáros , Julian F. Schumann , Javier Alonso-Mora , Arkady Zgonnikov , Jens Kober

In this paper, we extend the Discrete Empirical Interpolation Method (DEIM) to the third-order tensor case based on the t-product and use it to select important/ significant lateral and horizontal slices/features. The proposed Tubal DEIM…

Numerical Analysis · Mathematics 2023-05-09 Salman Ahmadi-Asl , Anh-Huy Phan , Cesar F. Caiafa , Andrzej Cichocki

In a reinforcement learning (RL) setting, the agent's optimal strategy heavily depends on her risk preferences and the underlying model dynamics of the training environment. These two aspects influence the agent's ability to make…

Machine Learning · Computer Science 2025-09-23 Anthony Coache , Sebastian Jaimungal

The reliance on deep learning algorithms has grown significantly in recent years. Yet, these models are highly vulnerable to adversarial attacks, which introduce visually imperceptible perturbations into testing data to induce…

Machine Learning · Computer Science 2019-06-14 Rajeev Sahay , Rehana Mahfuz , Aly El Gamal

Reinforcement learning (RL) is a powerful tool for sequential decision-making, but its application is often hindered by privacy concerns arising from its interaction data. This challenge is particularly acute in advanced networked systems,…

Machine Learning · Computer Science 2025-11-18 Shaojie Bai , Mohammad Sadegh Talebi , Chengcheng Zhao , Peng Cheng , Jiming Chen

Object re-identification (Re-ID) methods are highly sensitive to label noise, which typically leads to significant performance degradation. We address this challenge by reframing Re-ID as a supervised image similarity task and adopting a…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Waqar Ahmad , Evan Murphy , Vladimir A. Krylov