Is it worth it? Comparing six deep and classical methods for unsupervised anomaly detection in time series

F Rewicki, J Denzler, J Niebling - Applied Sciences, 2023 - mdpi.com
Detecting anomalies in time series data is important in a variety of fields, including system
monitoring, healthcare and cybersecurity. While the abundance of available methods makes …

Traceark: Towards actionable performance anomaly alerting for online service systems

Z Zeng, Y Zhang, Y Xu, M Ma, B Qiao… - 2023 IEEE/ACM 45th …, 2023 - ieeexplore.ieee.org
Performance anomaly alerting based on trace data plays an important role in assuring the
quality of online service systems. However, engineers find that many anomalies reported by …

Expert enhanced dynamic time war** based anomaly detection

M Kloska, G Grmanova, V Rozinajova - Expert Systems with Applications, 2023 - Elsevier
Dynamic time war** (DTW) is a well-known algorithm for time series elastic dissimilarity
measure. Its ability to deal with non-linear time distortions makes it helpful in a variety of data …

Tsagen: synthetic time series generation for kpi anomaly detection

C Wang, K Wu, T Zhou, G Yu… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
A key performance indicator (KPI) consists of critical time series data that reflect the runtime
states of network systems (eg, response time and available bandwidth). Despite the …

Active learning for data quality control: A survey

N Li, Y Qi, C Li, Z Zhao - ACM Journal of Data and Information Quality, 2024 - dl.acm.org
Data quality plays a vital role in scientific research and decision-making across industries.
Thus, it is crucial to incorporate the data quality control (DQC) process, which comprises …

Monilog: An automated log-based anomaly detection system for cloud computing infrastructures

A Vervaet - 2021 IEEE 37th international conference on data …, 2021 - ieeexplore.ieee.org
Within today's large-scale systems, one anomaly can impact millions of users. Detecting
such events in real-time is essential to maintain the quality of services. It allows the …

Active-MTSAD: multivariate time series anomaly detection with active learning

W Wang, P Chen, Y Xu, Z He - 2022 52nd Annual IEEE/IFIP …, 2022 - ieeexplore.ieee.org
Time series anomaly detection is an important research topic in the field of intelligent
operation and maintenance. When software systems are frequently updated with continuous …

[HTML][HTML] Anomaly detection in univariate time series incorporating active learning

R van Leeuwen, G Koole - Journal of Computational Mathematics and Data …, 2023 - Elsevier
In this research. we study anomaly detection in univariate time series and optimize
according to a business objective using a novel active learning approach. The motivation is …

A framework for privacy-preserving white-box anomaly detection using a lattice-based access control

C Leite, J Den Hartog, P Koster - … of the 28th ACM Symposium on …, 2023 - dl.acm.org
Privacy concerns are amongst the core issues that will constrain the adoption of distributed
anomaly detection. Indeed, when outsourcing anomaly detection, ie with a party other than …

Albadross: Active learning based anomaly diagnosis for production hpc systems

B Aksar, E Sencan, B Schwaller, O Aaziz… - 2022 IEEE …, 2022 - ieeexplore.ieee.org
Diagnosing causes of performance variations in High-Performance Computing (HPC)
systems is a daunting chal-lenge due to the systems' scale and complexity. Variations in …