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- W4285176337 abstract "Timely anomaly detection of key performance indicators (KPIs), <italic xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>e.g.</i> , service response time, error rate, is of utmost importance to Web services. Over the years, many unsupervised deep learning-based anomaly detection approaches have been proposed. To achieve good performance, they require a long period of KPI data for model training, which is not easy to guarantee with frequent service changes. Additionally, the training overhead is too significant for the vast number of KPIs in large-scale Web services. To address the problems, we propose an unsupervised KPI anomaly detection approach, named <italic xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>AnoTransfer</i> , by combining a novel Variational Auto-Encoder (VAE)-based KPI clustering algorithm with an adaptive transfer learning strategy. Extensive evaluation experiments using real-world data collected from several large-scale Web service providers demonstrate that <italic xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>AnoTransfer</i> reduces the average initialization time by 65.71% and improves the training efficiency by 50.62 times, without significantly degrading anomaly detection accuracy." @default.
- W4285176337 created "2022-07-14" @default.
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- W4285176337 date "2022-08-01" @default.
- W4285176337 modified "2023-10-16" @default.
- W4285176337 title "Efficient KPI Anomaly Detection Through Transfer Learning for Large-Scale Web Services" @default.
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- W4285176337 doi "https://doi.org/10.1109/jsac.2022.3180785" @default.
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