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Fusing Dictionary Learning and Support Vector Machines for Unsupervised Anomaly Detection
April 8, 2024, 4:11 a.m. | Paul Irofti, Iulian-Andrei H\^iji, Andrei P\u{a}tra\c{s}cu, Nicolae Cleju
cs.CR updates on arXiv.org arxiv.org
Abstract: We study in this paper the improvement of one-class support vector machines (OC-SVM) through sparse representation techniques for unsupervised anomaly detection. As Dictionary Learning (DL) became recently a common analysis technique that reveals hidden sparse patterns of data, our approach uses this insight to endow unsupervised detection with more control on pattern finding and dimensions. We introduce a new anomaly detection model that unifies the OC-SVM and DL residual functions into a single composite objective, …
analysis anomaly detection arxiv class cs.cr cs.lg cs.na data detection hidden improvement insight machines math.na patterns representation study support techniques
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