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Imbalanced learning is a fundamental challenge in data mining, where there is a disproportionate ratio of training samples in each class. Over-sampling is an effective technique to tackle imbalanced learning through generating synthetic…

机器学习 · 计算机科学 2022-08-29 Daochen Zha , Kwei-Herng Lai , Qiaoyu Tan , Sirui Ding , Na Zou , Xia Hu

Monitoring network traffic to maintain the quality of service (QoS) and to detect network intrusions in a timely and efficient manner is essential. As network traffic is sequential, recurrent neural networks (RNNs) such as long short-term…

密码学与安全 · 计算机科学 2023-10-04 Muhammad Wasim Nawaz , Rashid Munawar , Ahsan Mehmood , Muhammad Mahboob Ur Rahman , Qammer H. Abbasi

Hypergraphs are increasingly utilized in both unimodal and multimodal data scenarios due to their superior ability to model and extract higher-order relationships among nodes, compared to traditional graphs. However, current hypergraph…

机器学习 · 计算机科学 2024-09-10 Ziming Zhao , Tiehua Zhang , Zijian Yi , Zhishu Shen

This study examines the impact of class-imbalanced data on deep learning models and proposes a technique for data balancing by generating synthetic data for the minority class. Unlike random-based oversampling, our method prioritizes…

机器学习 · 计算机科学 2024-02-26 Hung Nguyen , Morris Chang

This paper combines the power of deep-learning with the generalizability of physics-based features, to present an advanced method for seismic discrimination between earthquakes and explosions. The proposed method contains two branches: a…

地球物理 · 物理学 2022-07-20 Qingkai Kong , Ruijia Wang , William R. Walter , Moira Pyle , Keith Koper , Brandon Schmandt

For research to go in the right direction, it is essential to be able to compare and quantify performance of different algorithms focused on the same problem. Choosing a suitable evaluation metric requires deep understanding of the pursued…

机器学习 · 计算机科学 2018-12-05 Jan Brabec , Lukas Machlica

Amongst the available technologies for earthquake research, remote sensing has been commonly used due to its unique features such as fast imaging and wide image-acquisition range. Nevertheless, early studies on pre-earthquake and…

Many real-world classification problems are significantly class-imbalanced to detriment of the class of interest. The standard set of proper evaluation metrics is well-known but the usual assumption is that the test dataset imbalance equals…

机器学习 · 计算机科学 2020-04-16 Jan Brabec , Tomáš Komárek , Vojtěch Franc , Lukáš Machlica

Class-imbalance is a common problem in machine learning practice. Typical Imbalanced Learning (IL) methods balance the data via intuitive class-wise resampling or reweighting. However, previous studies suggest that beyond class-imbalance,…

机器学习 · 计算机科学 2022-11-24 Zhining Liu , Pengfei Wei , Zhepei Wei , Boyang Yu , Jing Jiang , Wei Cao , Jiang Bian , Yi Chang

Earth observation technologies, such as optical imaging and synthetic aperture radar (SAR), provide excellent means to monitor ever-growing urban environments continuously. Notably, in the case of large-scale disasters (e.g., tsunamis and…

计算机视觉与模式识别 · 计算机科学 2020-09-15 Bruno Adriano , Naoto Yokoya , Junshi Xia , Hiroyuki Miura , Wen Liu , Masashi Matsuoka , Shunichi Koshimura

As part of autonomous car driving systems, semantic segmentation is an essential component to obtain a full understanding of the car's environment. One difficulty, that occurs while training neural networks for this purpose, is class…

计算机视觉与模式识别 · 计算机科学 2019-01-25 Robin Chan , Matthias Rottmann , Fabian Hüger , Peter Schlicht , Hanno Gottschalk

Contemporary deep learning models have demonstrated promising results across various applications within seismology and earthquake engineering. These models rely primarily on utilizing ground motion records for tasks such as earthquake…

信号处理 · 电气工程与系统科学 2025-05-06 Ümit Mert Çağlar , Baris Yilmaz , Melek Türkmen , Erdem Akagündüz , Salih Tileylioglu

Data imbalance, that is the disproportion between the number of training observations coming from different classes, remains one of the most significant challenges affecting contemporary machine learning. The negative impact of data…

机器学习 · 计算机科学 2021-11-30 Michał Koziarski

After a hurricane, damage assessment is critical to emergency managers for efficient response and resource allocation. One way to gauge the damage extent is to quantify the number of flooded/damaged buildings, which is traditionally done by…

计算机视觉与模式识别 · 计算机科学 2020-07-09 Quoc Dung Cao , Youngjun Choe

The rapid proliferation of deep-learning-based detection and association methods has greatly expanded automatically generated earthquake catalogs, but has also introduced false detections, mis-associated arrivals, and poorly constrained…

地球物理 · 物理学 2026-03-03 Ziye Yu , Jinqing Sun , Yuqi Cai , Zemin Liu , Pingping Wu , Xin Liu , Jiayan Tan

Imbalance learning is a subfield of machine learning that focuses on learning tasks in the presence of class imbalance. Nearly all existing studies refer to class imbalance as a proportion imbalance, where the proportion of training samples…

机器学习 · 计算机科学 2023-05-09 Ou Wu

Brain stroke remains one of the principal causes of death and disability worldwide, yet most tabular-data prediction models still hover below the 95% accuracy threshold, limiting real-world utility. Addressing this gap, the present work…

定量方法 · 定量生物学 2026-05-22 Yousuf Islam , Md. Jalal Uddin Chowdhury , Sumon Chandra Das

Despite extensive research spanning several decades, class imbalance is still considered a profound difficulty for both machine learning and deep learning models. While data oversampling is the foremost technique to address this issue,…

机器学习 · 计算机科学 2025-02-12 Sukumar Kishanthan , Asela Hevapathige

With changing climatic conditions, we are already seeing an increase in extreme weather events and their secondary consequences, including landslides. Landslides threaten infrastructure, including roads, railways, buildings, and human life.…

计算机视觉与模式识别 · 计算机科学 2023-10-11 Alexandra Jarna Ganerød , Gabriele Franch , Erin Lindsay , Martina Calovi

Earthquake monitoring is necessary to promptly identify the affected areas, the severity of the events, and, finally, to estimate damages and plan the actions needed for the restoration process. The use of seismic stations to monitor the…

计算机视觉与模式识别 · 计算机科学 2024-10-18 Daniele Rege Cambrin , Paolo Garza