Deep learning for anomaly detection in multivariate time series: Approaches, applications, and challenges

G Li, JJ Jung - Information Fusion, 2023 - Elsevier
Anomaly detection has recently been applied to various areas, and several techniques
based on deep learning have been proposed for the analysis of multivariate time series. In …

A review on outlier/anomaly detection in time series data

A Blázquez-García, A Conde, U Mori… - ACM computing surveys …, 2021 - dl.acm.org
Recent advances in technology have brought major breakthroughs in data collection,
enabling a large amount of data to be gathered over time and thus generating time series …

Applications of shapelet transform to time series classification of earthquake, wind and wave data

M Arul, A Kareem - Engineering Structures, 2021 - Elsevier
Autonomous detection of desired events from large databases using time series
classification is becoming increasingly important in civil engineering as a result of continued …

ConvTrans-CL: Ocean time series temperature data anomaly detection based context contrast learning

X Li, Y Chen, X Zhang, Y Peng, D Zhang… - Applied Ocean …, 2024 - Elsevier
Ocean temperature data anomaly detection is instrumental in monitoring environmental
changes and implementing measures to alleviate adverse consequences. This holds …

Time-series anomaly detection using dynamic programming based longest common subsequence on sensor data

TPQ Nguyen, PNK Phuc, CL Yang, H Sutrisno… - Expert Systems with …, 2023 - Elsevier
This study proposes a novel approach to time-series anomaly detection by solving the
longest common subsequence (LCS) problem of two time-series data. The conventional …

Graph embedding-based Anomaly localization for HVAC system

Y Gu, G Li, J Gu, JJ Jung - Journal of Building Engineering, 2023 - Elsevier
As a major energy consumption system in buildings, anomaly detection on multivariate time
series monitored by sensors in HVAC systems has been a significant challenge. However …

A new distributional treatment for time series anomaly detection

KM Ting, Z Liu, L Gong, H Zhang, Y Zhu - The VLDB Journal, 2024 - Springer
Time series is traditionally treated with two main approaches, ie, the time domain approach
and the frequency domain approach. These approaches must rely on a sliding window so …

A one-class Shapelet dictionary learning method for wind turbine bearing anomaly detection

J Zhang, B Zeng, W Shen, L Gao - Measurement, 2022 - Elsevier
Detecting main shaft bearing anomaly is crucial to ensure the safe operation of wind
turbines. However, existing anomaly detection methods have a limitation that anomaly …

[HTML][HTML] Outlier detection for multivariate time series: A functional data approach

Á López-Oriona, JA Vilar - Knowledge-Based Systems, 2021 - Elsevier
A method for detecting outlier samples in a multivariate time series dataset is proposed. It is
assumed that an outlying series is characterized by having been generated from a different …

A new measure between sets of probability distributions with applications to erratic financial behavior

N James, M Menzies - Journal of Statistical Mechanics: Theory …, 2021 - iopscience.iop.org
This paper introduces a new framework to quantify distance between finite sets with
uncertainty present, where probability distributions determine the locations of individual …