arXiv Machine Learning By Wenjing Liu, Yujia Lei, Qu Wang

A Biased Nonnegative Block Term Tensor Decomposition Model for Dynamic QoS Prediction

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arXiv:2605. 04813v2 Announce Type: replace Abstract: With the rapid development of cloud computing and Web services, Quality of Service (QoS) has become a key criterion for service selection and recommendation.

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arXiv Machine Learning
Sep 4

A Two-Stage Forecasting System for CPU Workload Prediction in Private Clouds

A two-stage forecasting system is introduced for predicting CPU workload in private clouds. The model first forecasts customer service requests in Transactions Per Second (TPS) and then estimates future CPU usage from the TPS forecast, both stages using XGBoost within a cascaded architecture. Experiments on real private‑cloud traces show SMAPE below 7% for most applications, with the best case achieving an MAE of 0.7372 and an R² of 0.9185, and stable error accumulation over a 60‑step horizon.

By Ashir Javeed, Anton Borg, H{\aa}kan Grahn, Lars Lundberg, Dhyey Patel, Sogand Shirinbab