Journal Article

Imbalanced learning: Improving classification of diabetic neuropathy from magnetic resonance imaging

Selvarajah, Dinesh, Tesfaye, Solomon, Wilkinson, Iain D., Teh, Kevin, Armitage, Paul

2020

Overview

One of the fundamental challenges when dealing with medical imaging datasets is class imbalance. Class imbalance happens where an instance in the class of interest is relatively low, when compared to the rest of the data. This study aims to apply oversampling strategies in an attempt to balance the classes and improve classification performance. We evaluated four different classifiers from k-nearest neighbors (k-NN), support vector machine (SVM), multilayer perceptron (MLP) and decision trees (DT) with 73 oversampling strategies. In this work, we used imbalanced learning oversampling techniques to improve classification in datasets that are distinctively sparser and clustered. This work reports the best oversampling and classifier combinations and concludes that the usage of oversampling methods always outperforms no oversampling strategies hence improving the classification results.

• Publisher: Public Library of Science,Public Library of Science (PLoS)
• Subject: Algorithms / Biology and Life Sciences / Computer and Information Sciences / Computer-aided medical diagnosis / Decision Trees / Diabetes Mellitus - classification / Diabetes Mellitus - diagnostic imaging / Diabetes Mellitus - pathology / Diabetic neuropathies / Diabetic Neuropathies - classification / Diabetic Neuropathies - diagnostic imaging / Diabetic Neuropathies - pathology / Diagnosis / Engineering and Technology / Female / Humans / Machine Learning / Magnetic Resonance Imaging / Male / Medicine and Health Sciences / Methods / Neuroimaging - methods / Physical Sciences / Research and Analysis Methods / Support Vector Machine