Adaptive swarm balancing algorithms for rare-event prediction in imbalanced healthcare data

J Li, L Liu, S Fong, RK Wong, S Mohammed, J Fiaidhi… - PloS one, 2017 - journals.plos.org
Clinical data analysis and forecasting have made substantial contributions to disease
control, prevention and detection. However, such data usually suffer from highly imbalanced …

A self-inspected adaptive SMOTE algorithm (SASMOTE) for highly imbalanced data classification in healthcare

T Kosolwattana, C Liu, R Hu, S Han, H Chen, Y Lin - BioData Mining, 2023 - Springer
In many healthcare applications, datasets for classification may be highly imbalanced due to
the rare occurrence of target events such as disease onset. The SMOTE (Synthetic Minority …

Over-and under-sampling approach for extremely imbalanced and small minority data problem in health record analysis

K Fujiwara, Y Huang, K Hori, K Nishioji… - Frontiers in public …, 2020 - frontiersin.org
A considerable amount of health record (HR) data has been stored due to recent advances
in the digitalization of medical systems. However, it is not always easy to analyze HR data …

Solving the under-fitting problem for decision tree algorithms by incremental swarm optimization in rare-event healthcare classification

J Li, S Fong, S Mohammed, J Fiaidhi… - Journal of Medical …, 2016 - ingentaconnect.com
Healthcare data are well-known to be imbalanced in the data distribution of target classes
where the samples of interest are much fewer than the ordinary samples. When it comes to …

Adaptive swarm cluster-based dynamic multi-objective synthetic minority oversampling technique algorithm for tackling binary imbalanced datasets in biomedical data …

J Li, S Fong, Y Sung, K Cho, R Wong, KKL Wong - BioData Mining, 2016 - Springer
Background An imbalanced dataset is defined as a training dataset that has imbalanced
proportions of data in both interesting and uninteresting classes. Often in biomedical …

A framework of rebalancing imbalanced healthcare data for rare events' classification: a case of look‐alike sound‐alike mix‐up incident detection

Y Zhao, ZSY Wong, KL Tsui - Journal of healthcare engineering, 2018 - Wiley Online Library
Identifying rare but significant healthcare events in massive unstructured datasets has
become a common task in healthcare data analytics. However, imbalanced class distribution …

Gamma distribution-based sampling for imbalanced data

F Kamalov, D Denisov - Knowledge-Based Systems, 2020 - Elsevier
Imbalanced class distribution is a common problem in a number of fields including medical
diagnostics, fraud detection, and others. It causes bias in classification algorithms leading to …

A multiple combined method for rebalancing medical data with class imbalances

YC Wang, CH Cheng - Computers in Biology and Medicine, 2021 - Elsevier
Most classification algorithms assume that classes are in a balanced state. However,
datasets with class imbalances are everywhere. The classes of actual medical datasets are …

RSMOTE: improving classification performance over imbalanced medical datasets

M Naseriparsa, A Al-Shammari, M Sheng… - … information science and …, 2020 - Springer
Introduction Medical diagnosis is a crucial step for patient treatment. However, diagnosis is
prone to bias due to imbalanced datasets. To overcome the imbalanced dataset problem …

A particle swarm based hybrid system for imbalanced medical data sampling

P Yang, L Xu, BB Zhou, Z Zhang, AY Zomaya - BMC genomics, 2009 - Springer
Background Medical and biological data are commonly with small sample size, missing
values, and most importantly, imbalanced class distribution. In this study we propose a …