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Exploring the Influence of Dimensionality Reduction on Anomaly Detection Performance in Multivariate Time Series
March 8, 2024, 5:41 a.m. | Mahsun Altin, Altan Cakir
cs.LG updates on arXiv.org arxiv.org
Abstract: This paper presents an extensive empirical study on the integration of dimensionality reduction techniques with advanced unsupervised time series anomaly detection models, focusing on the MUTANT and Anomaly-Transformer models. The study involves a comprehensive evaluation across three different datasets: MSL, SMAP, and SWaT. Each dataset poses unique challenges, allowing for a robust assessment of the models' capabilities in varied contexts. The dimensionality reduction techniques examined include PCA, UMAP, Random Projection, and t-SNE, each offering distinct …
abstract advanced anomaly anomaly detection arxiv cs.lg datasets detection dimensionality evaluation influence integration multivariate paper performance series study time series transformer transformer models type unsupervised
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