In the telecom domain, precise forecasting of time series patterns, such as cell key performance indicators (KPIs), plays a pivotal role in enhancing service quality and operational efficiency. State-of-the-art forecasting approaches prioritize forecasting accuracy at the expense of computational performance, rendering them less suitable for data-intensive applications encompassing systems with a multitude of time series variables. To address this issue, we introduce QBSD, a live forecasting approach tailored to optimize the trade-off between accuracy and computational complexity. We have evaluated the performance of QBSD against state-of-the-art forecasting approaches on publicly available datasets. We have also extended this investigation to our curated network KPI dataset, now publicly accessible, to showcase the effect of dynamic operating ranges that varies with time. The results demonstrate that the proposed method excels in runtime efficiency compared to the leading algorithms available while maintaining competitive forecast accuracy.

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