Interpretable anomaly detection with diffi: Depth-based feature importance of isolation forest

M Carletti, M Terzi, GA Susto - Engineering Applications of Artificial …, 2023 - Elsevier
Anomaly Detection is an unsupervised learning task aimed at detecting anomalous
behaviors with respect to historical data. In particular, multivariate Anomaly Detection has an …

TSB-UAD: an end-to-end benchmark suite for univariate time-series anomaly detection

J Paparrizos, Y Kang, P Boniol, RS Tsay… - Proceedings of the …, 2022 - dl.acm.org
The detection of anomalies in time series has gained ample academic and industrial
attention. However, no comprehensive benchmark exists to evaluate time-series anomaly …

A review of tree-based approaches for anomaly detection

T Barbariol, FD Chiara, D Marcato, GA Susto - Control charts and machine …, 2022 - Springer
Abstract Data-driven Anomaly Detection approaches have received increasing attention in
many application areas in the past few years as a tool to monitor complex systems in …

Sand: streaming subsequence anomaly detection

P Boniol, J Paparrizos, T Palpanas… - Proceedings of the VLDB …, 2021 - dl.acm.org
With the increasing demand for real-time analytics and decision making, anomaly detection
methods need to operate over streams of values and handle drifts in data distribution …

Choose wisely: An extensive evaluation of model selection for anomaly detection in time series

E Sylligardos, P Boniol, J Paparrizos… - Proceedings of the …, 2023 - dl.acm.org
Anomaly detection is a fundamental task for time-series analytics with important implications
for the downstream performance of many applications. Despite increasing academic interest …

Layered isolation forest: A multi-level subspace algorithm for improving isolation forest

T Liu, Z Zhou, L Yang - Neurocomputing, 2024 - Elsevier
Anomaly detection is an important field in data science that has been widely researched and
applied, generating many methods. Among these methods, the isolation forest algorithm is …

[HTML][HTML] On the improvement of the isolation forest algorithm for outlier detection with streaming data

M Heigl, KA Anand, A Urmann, D Fiala, M Schramm… - Electronics, 2021 - mdpi.com
In recent years, detecting anomalies in real-world computer networks has become a more
and more challenging task due to the steady increase of high-volume, high-speed and high …

Inference with mondrian random forests

MD Cattaneo, JM Klusowski… - arxiv preprint arxiv …, 2023 - arxiv.org
Random forests are popular methods for regression and classification analysis, and many
different variants have been proposed in recent years. One interesting example is the …

TiWS-iForest: Isolation forest in weakly supervised and tiny ML scenarios

T Barbariol, GA Susto - Information Sciences, 2022 - Elsevier
Unsupervised anomaly detection tackles the problem of finding anomalies inside datasets
without the labels availability; since data tagging is typically hard or expensive to obtain …

Online anomaly detection for aeroengine gas path based on piecewise linear representation and support vector data description

C Zhang, L Cui, Q Zhang, Y **, X Han… - IEEE sensors …, 2022 - ieeexplore.ieee.org
The online anomaly detection of an aeroengine gas path system is very important to ensure
the safety of aircraft. The traditional online anomaly detection method based on a sliding …