Anomaly detection in scientific datasets using sparse representation

A Moon, M Kim, J Chen, SW Son - Proceedings of the First Workshop on …, 2023 - dl.acm.org
As the size and complexity of high-performance computing (HPC) systems keep growing,
scientists' ability to trust the data produced is paramount due to potential data corruption for …

Learning sparse representation with variational auto-encoder for anomaly detection

J Sun, X Wang, N Xiong, J Shao - IEEE Access, 2018 - ieeexplore.ieee.org
Anomaly detection has a wide range of applications in security area such as network
monitoring and smart city/campus construction. It has become an active research issue of …

Anomaly detection via adaptive greedy model

D Hou, Y Cong, G Sun, J Liu, X Xu - Neurocomputing, 2019 - Elsevier
Anomaly detection is one of the fundamental problems within diverse research areas and
application domains. In comparison with most sparse representation based anomaly …

Improving deep unsupervised anomaly detection by exploiting VAE latent space distribution

F Angiulli, F Fassetti, L Ferragina - International Conference on Discovery …, 2020 - Springer
Anomaly detection methods exploiting autoencoders (AE) have shown good performances.
Unfortunately, deep non-linear architectures are able to perform high dimensionality …

Anomaly detection with kernel preserving embedding

H Liu, E Li, X Liu, K Su, S Zhang - ACM Transactions on Knowledge …, 2021 - dl.acm.org
Similarity representation plays a central role in increasingly popular anomaly detection
techniques, which have been successfully applied in various realistic scenes. Until now …

Unsupervised anomaly detection by robust density estimation

B Liu, PN Tan, J Zhou - Proceedings of the AAAI Conference on …, 2022 - ojs.aaai.org
Density estimation is a widely used method to perform unsupervised anomaly detection. By
learning the density function, data points with relatively low densities are classified as …

Extending an anomaly detection benchmark with auto-encoders, isolation forests, and rbms

M Pijnenburg, W Kowalczyk - … , ICIST 2019, Vilnius, Lithuania, October 10 …, 2019 - Springer
In this paper, the recently published benchmark of Goldstein and Uchida [3] for
unsupervised anomaly detection is extended with three anomaly detection techniques …

Dense projection for anomaly detection

D Fu, Z Zhang, J Fan - Proceedings of the AAAI Conference on Artificial …, 2024 - ojs.aaai.org
This work presents a novel method called dense projection for unsupervised anomaly
detection (DPAD). The main idea is maximizing the local density of (normal) training data …

[PDF][PDF] ESAD: end-to-end semi-supervised anomaly detection

C Huang12, F Ye, P Zhao13, Y Zhang… - …, 2021 - bmvc2021-virtualconference.com
This paper explores semi-supervised anomaly detection, a more practical setting for
anomaly detection where a small additional set of labeled samples are provided. We …

Connet: Deep semi-supervised anomaly detection based on sparse positive samples

F Gao, J Li, R Cheng, Y Zhou, Y Ye - IEEE Access, 2021 - ieeexplore.ieee.org
Existing semi-supervised anomaly detection methods usually use a large amount of labeled
normal data for training, which have the problem of high labeling costs. Only a few semi …