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Many super-resolution (SR) models are optimized for high performance only and therefore lack efficiency due to large model complexity. As large models are often not practical in real-world applications, we investigate and propose novel loss…

图像与视频处理 · 电气工程与系统科学 2021-06-03 Dario Fuoli , Luc Van Gool , Radu Timofte

While a practical wireless network has many tiers where end users do not directly communicate with the central server, the users' devices have limited computation and battery powers, and the serving base station (BS) has a fixed bandwidth.…

系统与控制 · 电气工程与系统科学 2024-03-26 Md Ferdous Pervej , Richeng Jin , Huaiyu Dai

An increasing number of emerging applications in data science and engineering are based on multidimensional and structurally rich data. The irregularities, however, of high-dimensional data often compromise the effectiveness of standard…

Hollow-core anti-resonant fibers (HC-ARFs) have proven to be an indispensable platform for various emerging applications due to their unique and extraordinary optical properties. However, accurately estimating the propagation loss of nested…

Insects, such as fruit flies and honey bees, can solve simple associative learning tasks and learn abstract concepts such as "sameness" and "difference", which is viewed as a higher-order cognitive function and typically thought to depend…

计算机视觉与模式识别 · 计算机科学 2021-09-15 Jinyung Hong , Theodore P. Pavlic

This letter puts forth a new hybrid horizontal-vertical federated learning (HoVeFL) for mobile edge computing-enabled Internet of Things (EdgeIoT). In this framework, certain EdgeIoT devices train local models using the same data samples…

分布式、并行与集群计算 · 计算机科学 2024-10-03 Kai Li , Yilei Liang , Xin Yuan , Wei Ni , Jon Crowcroft , Chau Yuen , Ozgur B. Akan

Learning with a {\it convex loss} function has been a dominating paradigm for many years. It remains an interesting question how non-convex loss functions help improve the generalization of learning with broad applicability. In this paper,…

机器学习 · 计算机科学 2018-05-22 Yi Xu , Shenghuo Zhu , Sen Yang , Chi Zhang , Rong Jin , Tianbao Yang

This work investigates fault-resilient federated learning when the data samples are non-uniformly distributed across workers, and the number of faulty workers is unknown to the central server. In the presence of adversarially faulty workers…

Low-rank matrix estimation under heavy-tailed noise is challenging, both computationally and statistically. Convex approaches have been proven statistically optimal but suffer from high computational costs, especially since robust loss…

统计理论 · 数学 2023-05-12 Yinan Shen , Jingyang Li , Jian-Feng Cai , Dong Xia

High-resolution remote sensing (HRS) semantic segmentation extracts key objects from high-resolution coverage areas. However, objects of the same category within HRS images generally show significant differences in scale and shape across…

计算机视觉与模式识别 · 计算机科学 2024-08-16 Yuxia Chen , Pengcheng Fang , Jianhui Yu , Xiaoling Zhong , Xiaoming Zhang , Tianrui Li

Recurrent Neural networks (RNN) have shown promising potential for learning dynamics of sequential data. However, artificial neural networks are known to exhibit poor robustness in presence of input noise, where the sequential architecture…

机器学习 · 计算机科学 2021-05-05 Arash Amini , Guangyi Liu , Nader Motee

Time series forecasting relies on predicting future values from historical data, yet most state-of-the-art approaches-including transformer and multilayer perceptron-based models-optimize using Mean Squared Error (MSE), which has two…

机器学习 · 计算机科学 2025-12-01 Jieting Wang , Xiaolei Shang , Feijiang Li , Furong Peng

All machine learning algorithms use a loss, cost, utility or reward function to encode the learning objective and oversee the learning process. This function that supervises learning is a frequently unrecognized hyperparameter that…

神经与进化计算 · 计算机科学 2024-11-06 Mathew Mithra Noel , Arindam Banerjee , Yug Oswal , Geraldine Bessie Amali D , Venkataraman Muthiah-Nakarajan

Modeling non-stationary processes, where statistical properties vary across the input domain, is a critical challenge in machine learning; yet most scalable methods rely on a simplifying assumption of stationarity. This forces a difficult…

机器学习 · 计算机科学 2026-02-03 Sawan Kumar , Souvik Chakraborty

Hierarchical federated learning (HFL) has emerged as a key architecture for large-scale wireless and Internet of Things systems, where devices communicate with nearby edge servers before reaching the cloud. In these environments, uplink…

分布式、并行与集群计算 · 计算机科学 2026-02-03 Amirreza Kazemi , Seyed Mohammad Azimi-Abarghouyi , Gabor Fodor , Carlo Fischione

Excluding irrelevant features in a pattern recognition task plays an important role in maintaining a simpler machine learning model and optimizing the computational efficiency. Nowadays with the rise of large scale datasets, feature…

机器学习 · 计算机科学 2018-04-17 Saman Sadeghyan

Face recognition has witnessed significant progresses due to the advances of deep convolutional neural networks (CNNs), the central challenge of which, is feature discrimination. To address it, one group tries to exploit mining-based…

计算机视觉与模式识别 · 计算机科学 2019-01-01 Xiaobo Wang , Shuo Wang , Shifeng Zhang , Tianyu Fu , Hailin Shi , Tao Mei

Federated learning (FL) enables collaborative model training without direct data sharing, but its performance can degrade significantly in the presence of data distribution perturbations. Distributionally robust optimization (DRO) provides…

机器学习 · 计算机科学 2025-09-30 Zifan Wang , Xinlei Yi , Xenia Konti , Michael M. Zavlanos , Karl H. Johansson

The top-k error is a common measure of performance in machine learning and computer vision. In practice, top-k classification is typically performed with deep neural networks trained with the cross-entropy loss. Theoretical results indeed…

机器学习 · 计算机科学 2018-02-22 Leonard Berrada , Andrew Zisserman , M. Pawan Kumar

Neural networks (NN) perform well in diverse tasks, but sometimes produce nonsensical results to humans. Most NN models "solely" learn from (input, output) pairs, occasionally conflicting with human knowledge. Many studies indicate…

机器学习 · 计算机科学 2024-08-22 Mooho Song , Jay-Yoon Lee