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Deep neural networks are highly susceptible to backdoor attacks, yet most defense methods to date rely on balanced data, overlooking the pervasive class imbalance in real-world scenarios that can amplify backdoor threats. This paper…

密码学与安全 · 计算机科学 2026-02-03 Miao Lin , Feng Yu , Rui Ning , Lusi Li , Jiawei Chen , Qian Lou , Mengxin Zheng , Chunsheng Xin , Hongyi Wu

Anomaly detection in video streams is a challenging problem because of the scarcity of abnormal events and the difficulty of accurately annotating them. To alleviate these issues, unsupervised learning-based prediction methods have been…

计算机视觉与模式识别 · 计算机科学 2021-10-28 Youngsaeng Jin , Jonghwan Hong , David Han , Hanseok Ko

For the last two decades, oversampling has been employed to overcome the challenge of learning from imbalanced datasets. Many approaches to solving this challenge have been offered in the literature. Oversampling, on the other hand, is a…

机器学习 · 计算机科学 2022-06-09 Ahmad B. Hassanat , Ahmad S. Tarawneh , Ghada A. Altarawneh , Abdullah Almuhaimeed

Negative sampling is significant for training sequential recommendation models under implicit feedback. The predominant strategy, self-guided hard negative sampling, selects negatives based on the model's current state but suffers from…

信息检索 · 计算机科学 2026-05-20 Yuanzi Li , Lingjie Wang , Jingyu Zhao , Zihang Tian , Yuhan Wang , Lei Wang , Xu Chen

In implicit collaborative filtering (CF) task of recommender systems, recent works mainly focus on model structure design with promising techniques like graph neural networks (GNNs). Effective and efficient negative sampling methods that…

信息检索 · 计算机科学 2024-03-29 Kexin Shi , Yun Zhang , Bingyi Jing , Wenjia Wang

Software defect prediction plays a crucial role in estimating the most defect-prone components of software, and a large number of studies have pursued improving prediction accuracy within a project or across projects. However, the rules for…

软件工程 · 计算机科学 2020-04-28 Peng He , Bing Li , Xiao Liu , Jun Chen , Yutao Ma

We would like to present the idea of our Continuous Defect Prediction (CDP) research and a related dataset that we created and share. Our dataset is currently a set of more than 11 million data rows, representing files involved in…

软件工程 · 计算机科学 2017-06-23 Lech Madeyski , Marcin Kawalerowicz

Conformal prediction (CP) for regression can be challenging, especially when the output distribution is heteroscedastic, multimodal, or skewed. Some of the issues can be addressed by estimating a distribution over the output, but in…

机器学习 · 计算机科学 2024-04-15 Etash Guha , Shlok Natarajan , Thomas Möllenhoff , Mohammad Emtiyaz Khan , Eugene Ndiaye

Assisted by the availability of data and high performance computing, deep learning techniques have achieved breakthroughs and surpassed human performance empirically in difficult tasks, including object recognition, speech recognition, and…

机器学习 · 计算机科学 2019-01-23 Shaeke Salman , Xiuwen Liu

One truism of deep learning is that the automatic feature engineering (seen in the first layers of those networks) excuses data scientists from performing tedious manual feature engineering prior to running DL. For the specific case of deep…

软件工程 · 计算机科学 2021-04-22 Rahul Yedida , Tim Menzies

The collected data from industrial machines are often imbalanced, which poses a negative effect on learning algorithms. However, this problem becomes more challenging for a mixed type of data or while there is overlapping between classes.…

计算机视觉与模式识别 · 计算机科学 2020-08-10 Masoumeh Zareapoor , Pourya Shamsolmoali , Jie Yang

Background: Machine Learning (ML) methods are being increasingly used for automating different activities, e.g., Test Case Prioritization (TCP), of Continuous Integration (CI). However, ML models need frequent retraining as a result of…

软件工程 · 计算机科学 2023-07-18 Ali Kazemi Arani , Triet Huynh Minh Le , Mansooreh Zahedi , Muhammad Ali Babar

In many real-world binary classification tasks (e.g. detection of certain objects from images), an available dataset is imbalanced, i.e., it has much less representatives of a one class (a minor class), than of another. Generally, accurate…

机器学习 · 统计学 2017-07-14 Evgeny Burnaev , Pavel Erofeev , Artem Papanov

As a data-driven method, the performance of deep convolutional neural networks (CNN) relies heavily on training data. The prediction results of traditional networks give a bias toward larger classes, which tend to be the background in the…

计算机视觉与模式识别 · 计算机科学 2022-03-04 N. Anantrasirichai , David Bull

Learning from imbalanced data is among the most challenging areas in contemporary machine learning. This becomes even more difficult when considered the context of big data that calls for dedicated architectures capable of high-performance…

机器学习 · 计算机科学 2022-11-16 William C. Sleeman , Bartosz Krawczyk

Various problems of any credit card fraud detection based on machine learning come from the imbalanced aspect of transaction datasets. Indeed, the number of frauds compared to the number of regular transactions is tiny and has been shown to…

机器学习 · 计算机科学 2022-06-28 François de la Bourdonnaye , Fabrice Daniel

Software testing is one of the important ways to ensure the quality of software. It is found that testing cost more than 50% of overall project cost. Effective and efficient software testing utilizes the minimum resources of software.…

机器学习 · 计算机科学 2020-09-01 Ali Nawaz , Attique Ur Rehman , Muhammad Abbas

As the primary cause of software defects, human error is the key to understanding, and perhaps to predicting and avoiding them. Little research has been done to predict defects on the basis of the cognitive errors that cause them. This…

软件工程 · 计算机科学 2023-01-18 Fuqun Huang , Lorenzo Strigini

We aim at developing and improving the imbalanced business risk modeling via jointly using proper evaluation criteria, resampling, cross-validation, classifier regularization, and ensembling techniques. Area Under the Receiver Operating…

机器学习 · 统计学 2019-03-14 Yan Wang , Xuelei Sherry Ni

Crash data is often greatly imbalanced, with the majority of crashes being non-fatal crashes, and only a small number being fatal crashes due to their rarity. Such data imbalance issue poses a challenge for crash severity modeling since it…

机器学习 · 计算机科学 2024-04-04 Junlan Chen , Ziyuan Pu , Nan Zheng , Xiao Wen , Hongliang Ding , Xiucheng Guo