Dynamic thresholding for video anomaly detection

D Jia, X Zhang, JT Zhou, P Lai, Y Wei - IET Image Processing, 2022 - Wiley Online Library
… use a modified anomaly detection metric. Specifically, if any frame in the ground truth
anomaly segment is detected by our dynamic threshold, we consider the segment to be detected

Detecting spacecraft anomalies using lstms and nonparametric dynamic thresholding

K Hundman, V Constantinou, C Laporte… - Proceedings of the 24th …, 2018 - dl.acm.org
… , precision, and complexity that are inherent in many anomaly detection scenarios. We also
propose a novel dynamic thresholding approach that does not rely on scarce labels or false …

A stacked predictor and dynamic thresholding algorithm for anomaly detection in spacecraft

T Li, M Comer, E Delp, SR Desai… - MILCOM 2019-2019 …, 2019 - ieeexplore.ieee.org
… the anomalies with a dynamic thresholding algorithm, to improve the robustness of our
anomaly detector. … In Section III, we introduce our dynamic thresholding algorithm. In Section IV, …

An attention-based ConvLSTM autoencoder with dynamic thresholding for unsupervised anomaly detection in multivariate time series

T Tayeh, S Aburakhia, R Myers, A Shami - Machine Learning and …, 2022 - mdpi.com
… amount of unsupervised anomaly detection methods have … approach is potentially detecting
anomalies in novel classes … 22], not solving the anomaly detection task described in this work…

Anomaly detection in dynamic networks: a survey

S Ranshous, S Shen, D Koutra… - Wiley …, 2015 - Wiley Online Library
… We first describe four types of anomalies that arise in dynamic networks, providing an intuitive
… use a threshold system as an anomaly detector, GraphScope uses a dynamic threshold, …

Anomaly detection for unmanned aerial vehicle sensor data using a stacked recurrent autoencoder method with dynamic thresholding

V Bell, D Rengasamy, B Rothwell… - arXiv preprint arXiv …, 2022 - arxiv.org
… that dynamic thresholding … a dynamic thresholding strategy and LSTMs, both of which make
use of contextual data, is investigated in this paper as an improvement of anomaly detection

Evaluation of Machine Learning Algorithms for Supervised Anomaly Detection and Comparison between Static and Dynamic Thresholds in Photovoltaic Systems

T Klinsuwan, W Ratiphaphongthon, R Wangkeeree… - Energies, 2023 - mdpi.com
… focused on static thresholds for detecting abnormalities, we introduce a dynamic threshold
approach that significantly improves the efficiency of automatic fault detection. Additionally, …

Anomaly detection in wireless sensor network using machine learning algorithm

IGA Poornima, B Paramasivan - Computer communications, 2020 - Elsevier
… is fed to the threshold method to detect the anomalous data. … a threshold value as input to
the detection algorithm, we presented a dynamic threshold generation method in the detection

Improving the Accuracy of Coal-Rock Dynamic Hazard Anomaly Detection Using a Dynamic Threshold and a Depth Auto-Coding Gaussian Hybrid Model

Y Kong, Z Luo - Sustainability, 2023 - mdpi.com
… of anomaly detection for coal-rock dynamic disasters, this paper proposes an anomaly detection
method based on a dynamic threshold … used as the initial threshold, and the subsequent …

Anomaly scoring for prediction-based anomaly detection in time series

T Li, ML Comer, EJ Delp, SR Desai… - 2020 IEEE …, 2020 - ieeexplore.ieee.org
… 𝑋â|àâ whose prediction error is larger than 𝑇 as an anomaly. … anomaly detection, an LSTM
network is used as the predictor in this paper. For anomaly extraction, a dynamic thresholding