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In this work, we employ the Synthetic Minority Oversampling Technique (SMOTE) to generate instances of the minority class of an imbalanced Coronary Artery Disease dataset. We firstly analyze the public dataset Z -- Alizadeh Sani, a dataset…

医学物理 · 物理学 2020-04-09 Ioannis D. Apostolopoulos

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

Learning from class-imbalanced data continues to be a common and challenging problem in supervised learning as standard classification algorithms are designed to handle balanced class distributions. While different strategies exist to…

机器学习 · 计算机科学 2020-03-06 Felix Last , Georgios Douzas , Fernando Bacao

Data augmentation is important for improving machine learning model performance when faced with limited real-world data. In time series forecasting (TSF), where accurate predictions are crucial in fields like finance, healthcare, and…

机器学习 · 计算机科学 2024-08-21 Dona Arabi , Jafar Bakhshaliyev , Ayse Coskuner , Kiran Madhusudhanan , Kami Serdar Uckardes

Drought has become a critical global threat with significant societal impact. Existing drought monitoring solutions primarily focus on assessing drought severity using quantitative measurements, overlooking the diverse societal impact of…

社会与信息网络 · 计算机科学 2024-12-18 Lanyu Shang , Bozhang Chen , Shiwei Liu , Yang Zhang , Ruohan Zong , Anav Vora , Ximing Cai , Na Wei , Dong Wang

Scaling laws dictate that the performance of AI models is proportional to the amount of available data. Data augmentation is a promising solution to expanding the dataset size. Traditional approaches focused on augmentation using rotation,…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Fazle Rahat , M Shifat Hossain , Md Rubel Ahmed , Sumit Kumar Jha , Rickard Ewetz

Imperfections and uncertainties in forecast models are often represented in ensemble prediction systems by stochastic perturbations of model equations. In this article, we present a new technique to generate model perturbations. The…

大气与海洋物理 · 物理学 2023-11-28 Michael Tsyrulnikov , Elena Astakhova , Dmitry Gayfulin

Recently, deep learning has emerged as a promising tool for statistical downscaling, the set of methods for generating high-resolution climate fields from coarse low-resolution variables. Nevertheless, their ability to generalize to climate…

机器学习 · 计算机科学 2023-05-03 Jose González-Abad , Jorge Baño-Medina

In this research we use a data stream approach to mining data and construct Decision Tree models that predict software build outcomes in terms of software metrics that are derived from source code used in the software construction process.…

软件工程 · 计算机科学 2014-07-10 Russel Pears , Jacqui Finlay , Andy M. Connor

Fact verification datasets are typically constructed using crowdsourcing techniques due to the lack of text sources with veracity labels. However, the crowdsourcing process often produces undesired biases in data that cause models to learn…

计算与语言 · 计算机科学 2021-10-01 Minwoo Lee , Seungpil Won , Juae Kim , Hwanhee Lee , Cheoneum Park , Kyomin Jung

The development of fair and ethical AI systems requires careful consideration of bias mitigation, an area often overlooked or ignored. In this study, we introduce a novel and efficient approach for addressing biases called Targeted Data…

机器学习 · 计算机科学 2023-08-23 Agnieszka Mikołajczyk-Bareła , Maria Ferlin , Michał Grochowski

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

A high imbalance exists between technical debt and non-technical debt source code comments. Such imbalance affects Self-Admitted Technical Debt (SATD) detection performance, and existing literature lacks empirical evidence on the choice of…

软件工程 · 计算机科学 2021-03-25 Murali Sridharan , Mika Mantyla , Leevi Rantala , Maelick Claes

Credit scoring is vital in the financial industry, assessing the risk of lending to credit card applicants. Traditional credit scoring methods face challenges with large datasets and data imbalance between creditworthy and non-creditworthy…

计算工程、金融与科学 · 计算机科学 2024-09-26 Kejian Tong , Zonglin Han , Yanxin Shen , Yujian Long , Yijing Wei

Counterfactual Data Augmentation (CDA) is a commonly used technique for improving robustness in natural language classifiers. However, one fundamental challenge is how to discover meaningful counterfactuals and efficiently label them, with…

计算与语言 · 计算机科学 2023-05-24 Ananth Balashankar , Xuezhi Wang , Yao Qin , Ben Packer , Nithum Thain , Jilin Chen , Ed H. Chi , Alex Beutel

Seasonal climate predictions support planning and risk management by offering early information of the most likely-to-occur climate conditions in the coming months, and associated uncertainties. Ensemble forecasts enable this by simulating…

机器学习 · 计算机科学 2026-05-29 Parsa Gooya , Reinel Sospedra-Alfonso

Decision-makers rely on weather forecasts to plant crops, manage wildfires, allocate water and energy, and prepare for weather extremes. Today, such forecasts enjoy unprecedented accuracy out to two weeks thanks to steady advances in…

Atmospheric models used for weather and climate prediction are traditionally formulated in a deterministic manner. In other words, given a particular state of the resolved scale variables, the most likely forcing from the sub-grid scale…

机器学习 · 计算机科学 2024-02-16 Hannah M. Christensen , Salah Kouhen , Greta Miller , Raghul Parthipan

The dominant paradigm in machine learning is to assess model performance based on average loss across all samples in some test set. This amounts to averaging performance geospatially across the Earth in weather and climate settings, failing…

机器学习 · 计算机科学 2025-10-31 Nick Masi , Randall Balestriero

In current visual model training, models often rely on only limited sufficient causes for their predictions, which makes them sensitive to distribution shifts or the absence of key features. Attribution methods can accurately identify a…

计算机视觉与模式识别 · 计算机科学 2025-11-18 Yannan Chen , Ruoyu Chen , Bin Zeng , Wei Wang , Shiming Liu , Qunli Zhang , Zheng Hu , Laiyuan Wang , Yaowei Wang , Xiaochun Cao