Deep learning for anomaly detection in time-series data: Review, analysis, and guidelines

K Choi, J Yi, C Park, S Yoon - IEEE access, 2021 - ieeexplore.ieee.org
As industries become automated and connectivity technologies advance, a wide range of
systems continues to generate massive amounts of data. Many approaches have been …

[HTML][HTML] Forecasting: theory and practice

F Petropoulos, D Apiletti, V Assimakopoulos… - International Journal of …, 2022 - Elsevier
Forecasting has always been at the forefront of decision making and planning. The
uncertainty that surrounds the future is both exciting and challenging, with individuals and …

Anomaly detection, localization and classification using drifting synchrophasor data streams

A Ahmed, KS Sajan, A Srivastava… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
With ongoing automation and digitization of the electric power system, several Phasor
Measurement Units (PMUs) have been deployed for monitoring and control. PMU data can …

Forecasting with time series imaging

X Li, Y Kang, F Li - Expert Systems with Applications, 2020 - Elsevier
Feature-based time series representations have attracted substantial attention in a wide
range of time series analysis methods. Recently, the use of time series features for forecast …

Anomaly detection in high-dimensional data

PD Talagala, RJ Hyndman… - Journal of Computational …, 2021 - Taylor & Francis
The HDoutliers algorithm is a powerful unsupervised algorithm for detecting anomalies in
high-dimensional data, with a strong theoretical foundation. However, it suffers from some …

An autocorrelation-based LSTM-autoencoder for anomaly detection on time-series data

H Homayouni, S Ghosh, I Ray… - … conference on big …, 2020 - ieeexplore.ieee.org
Data quality significantly impacts the results of data analytics. Researchers have proposed
machine learning based anomaly detection techniques to identify incorrect data. Existing …

On normalization and algorithm selection for unsupervised outlier detection

S Kandanaarachchi, MA Muñoz, RJ Hyndman… - Data Mining and …, 2020 - Springer
This paper demonstrates that the performance of various outlier detection methods is
sensitive to both the characteristics of the dataset, and the data normalization scheme …

Multivariate time series anomaly detection: Missing data handling and feature collaborative analysis in robot joint data

B Yang, W Long, Y Zhang, Z **, J Jiao, Y Li - Journal of Manufacturing …, 2024 - Elsevier
The efficient operation of industrial robots relies on reliable anomaly detection systems, but
the problem of missing data caused by sensor failures, data transmission errors, and system …

Constructing a control chart using functional data

M Flores, S Naya, R Fernández-Casal, S Zaragoza… - Mathematics, 2020 - mdpi.com
This study proposes a control chart based on functional data to detect anomalies and
estimate the normal output of industrial processes and services such as those related to the …

A linear time method for the detection of collective and point anomalies

ATM Fisch, IA Eckley… - Statistical Analysis and …, 2022 - Wiley Online Library
The challenge of efficiently identifying anomalies in data sequences is an important
statistical problem that now arises in many applications. Although there has been substantial …