Time Series Anomaly Detection using Convolutional Neural Networks in the Manufacturing Process of RAN

The traditional approach of categorizing test results as “Pass” or “Fail” based on fixed thresholds can be labor-intensive and lead to dropping test data. This paper presents a framework to enhance the semi-automated software testing process by detecting deviations in executed data and alerting when anomalous inputs fall outside data-driven thresholds. In detail, the proposed solution utilizes classification with convolutional neural networks and prediction modeling using linear regression, Ridge regression, Lasso regression, and XGBoost. The study also explores transfer learning in a highly correlated use case. Empirical evaluation at a leading Telecom company validates the effectiveness of the approach, showcasing its potential to improve testing efficiency and accuracy. Despite its significance, limitations include the need for further research in different domains and industries to generalize the findings, as well as the potential biases introduced by the selected machine learning models. Overall, this study contributes to the field of semi-automated software testing and highlights the benefits of leveraging data-driven thresholds and machine learning techniques for enhanced software quality assurance processes.