International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 186 - Number 45 |
Year of Publication: 2024 |
Authors: Divya Challa |
10.5120/ijca2024924134 |
Divya Challa . Comprehensive Review of One-Class Classification Approaches for Anomaly Detection. International Journal of Computer Applications. 186, 45 ( Oct 2024), 69-74. DOI=10.5120/ijca2024924134
Anomaly detection is a crucial task in various domains, including cybersecurity, healthcare, and finance, where identifying rare and abnormal events is of paramount importance. One-Class Classification (OCC) methods have emerged as a powerful approach for this task, effectively distinguishing between normal and anomalous data when only the normal class is well-represented. This paper provides a comprehensive review of OCC techniques, categorizing them into four main approaches: Reconstruction-Based Methods, Variational Autoencoders (VAEs), Convolutional Approaches, and Hybrid Models. Additionally, it delves into the diverse applications of OCC, including the detection of rare diseases in healthcare, financial fraud prevention, and industrial fault detection. The review also addresses key challenges such as data imbalance, model interpretability, and scalability, while highlighting recent trends and advancements in the field.