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Class imbalance problem has been a challenging research problem in the fields of machine learning and data mining as most real life datasets are imbalanced. Several existing machine learning algorithms try to maximize the accuracy…

Since federated learning (FL) has been introduced as a decentralized learning technique with privacy preservation, statistical heterogeneity of distributed data stays the main obstacle to achieve robust performance and stable convergence in…

机器学习 · 计算机科学 2022-12-08 Yanhang Shi , Siguang Chen , Haijun Zhang

Despite the fact that data imbalance is becoming more and more common in real-world Spoken Language Understanding (SLU) applications, it has not been studied extensively in the literature. To the best of our knowledge, this paper presents…

音频与语音处理 · 电气工程与系统科学 2020-08-07 Judith Gaspers , Quynh Do , Fabian Triefenbach

Classification predictive modeling involves the accurate assignment of observations in a dataset to target classes or categories. There is an increasing growth of real-world classification problems with severely imbalanced class…

机器学习 · 统计学 2022-01-03 Banghee So , Emiliano A. Valdez

Machine learning classifiers often stumble over imbalanced datasets where classes are not equally represented. This inherent bias towards the majority class may result in low accuracy in labeling minority class. Imbalanced learning is…

机器学习 · 计算机科学 2019-11-14 Wenhao Zhang , Ramin Ramezani , Arash Naeim

In last few years there are major changes and evolution has been done on classification of data. As the application area of technology is increases the size of data also increases. Classification of data becomes difficult because of…

机器学习 · 计算机科学 2013-05-09 Rushi Longadge , Snehalata Dongre

Synthetic Minority Oversampling Technique (SMOTE) is a common rebalancing strategy for handling imbalanced tabular data sets. However, few works analyze SMOTE theoretically. In this paper, we derive several non-asymptotic upper bound on…

机器学习 · 统计学 2026-03-18 Abdoulaye Sakho , Emmanuel Malherbe , Erwan Scornet

In imbalanced multi-class classification problems, the misclassification rate as an error measure may not be a relevant choice. Several methods have been developed where the performance measure retained richer information than the mere…

机器学习 · 计算机科学 2013-11-05 Sokol Koço , Cécile Capponi

Semi-supervised learning on class-imbalanced data, although a realistic problem, has been under studied. While existing semi-supervised learning (SSL) methods are known to perform poorly on minority classes, we find that they still generate…

计算机视觉与模式识别 · 计算机科学 2021-06-18 Chen Wei , Kihyuk Sohn , Clayton Mellina , Alan Yuille , Fan Yang

In this correspondence, we introduce a minimax regret criteria to the least squares problems with bounded data uncertainties and solve it using semi-definite programming. We investigate a robust minimax least squares approach that minimizes…

系统与控制 · 计算机科学 2012-03-20 Nargiz Kalantarova , Mehmet A. Donmez , Suleyman S. Kozat

Federated Learning (FL) is a promising framework for performing privacy-preserving, distributed learning with a set of clients. However, the data distribution among clients often exhibits non-IID, i.e., distribution shift, which makes…

机器学习 · 计算机科学 2022-06-07 Zhe Qu , Xingyu Li , Rui Duan , Yao Liu , Bo Tang , Zhuo Lu

Class imbalance in machine learning poses a significant challenge, as skewed datasets often hinder performance on minority classes. Traditional oversampling techniques, which are commonly used to alleviate class imbalance, have several…

机器学习 · 计算机科学 2025-09-09 Sukumar Kishanthan , Asela Hevapathige

Real-world datasets exhibit imbalances of varying types and degrees. Several techniques based on re-weighting and margin adjustment of loss are often used to enhance the performance of neural networks, particularly on minority classes. In…

机器学习 · 计算机科学 2022-12-29 Harsh Rangwani , Sumukh K Aithal , Mayank Mishra , R. Venkatesh Babu

Cloud applications are increasingly shifting from large monolithic services to complex graphs of loosely-coupled microservices. Despite the advantages of modularity and elasticity microservices offer, they also complicate cluster management…

分布式、并行与集群计算 · 计算机科学 2021-01-05 Yu Gan , Mingyu Liang , Sundar Dev , David Lo , Christina Delimitrou

Optimizing microservice placement to enhance the reliability of services is crucial for improving the service level of microservice architecture-based mobile networks and Internet of Things (IoT) networks. Despite extensive research on…

网络与互联网体系结构 · 计算机科学 2025-05-13 Fangyu Zhang , Yuang Chen , Hancheng Lu , Yongsheng Huang

Semi-supervised learning (SSL) has made significant strides in the field of remote sensing. Finding a large number of labeled datasets for SSL methods is uncommon, and manually labeling datasets is expensive and time-consuming. Furthermore,…

计算机视觉与模式识别 · 计算机科学 2022-12-22 Fahmida Tasnim Lisa , Md. Zarif Hossain , Sharmin Naj Mou , Shahriar Ivan , Md. Hasanul Kabir

With the rapidly spreading usage of Internet of Things (IoT) devices, a network intrusion detection system (NIDS) plays an important role in detecting and protecting various types of attacks in the IoT network. To evaluate the robustness of…

密码学与安全 · 计算机科学 2024-03-29 Jesse Atuhurra , Takanori Hara , Yuanyu Zhang , Masahiro Sasabe , Shoji Kasahara

Supervised fine-tuning (SFT) is crucial for aligning Large Language Models (LLMs) with human instructions. The primary goal during SFT is to select a small yet representative subset of training data from the larger pool, such that…

计算与语言 · 计算机科学 2024-12-10 Tingyu Xia , Bowen Yu , Kai Dang , An Yang , Yuan Wu , Yuan Tian , Yi Chang , Junyang Lin

Class imbalance and distributional differences in large datasets present significant challenges for classification tasks machine learning, often leading to biased models and poor predictive performance for minority classes. This work…

机器学习 · 统计学 2024-12-20 Alex Mak , Shubham Sahoo , Shivani Pandey , Yidan Yue , Linglong Kong

In recent years, the rise of cyber threats has emphasized the need for robust malware detection systems, especially on mobile devices. Malware, which targets vulnerabilities in devices and user data, represents a substantial security risk.…

密码学与安全 · 计算机科学 2025-04-08 J. V. S. Souza , C. B. Vieira , G. D. C. Cavalcanti , R. M. O. Cruz