Abstract
We survey unsupervised machine learning algorithms in the context of outlier detection. This task challenges state-of-the-art methods from a variety of research fields to applications including fraud detection, intrusion detection, medical diagnoses and data cleaning. The selected methods are benchmarked on publicly available datasets and novel industrial datasets. Each method is then submitted to extensive scalability, memory consumption and robustness tests in order to build a full overview of the algorithms’ characteristics.
Original language | English (US) |
---|---|
Pages (from-to) | 406-421 |
Number of pages | 16 |
Journal | Pattern Recognition |
Volume | 74 |
DOIs | |
State | Published - Feb 2018 |
Bibliographical note
Publisher Copyright:© 2017 Elsevier Ltd
Keywords
- Fraud detection
- Isolation forest
- Novelty detection
- Outlier detection
- Variational inference
ASJC Scopus subject areas
- Software
- Signal Processing
- Computer Vision and Pattern Recognition
- Artificial Intelligence