Fig. 10: Small sample data generation based on feature transformation.
From: Explainable mechanism for production process anomalies based on digital twin
In most cases, steady-state data (e.g., normal operation data) is sufficient, while oscillation data (e.g., abnormal operation data) is scarce, leading to data imbalance. GDT(.) is used to expand the sample data, and the expanded dataset is recorded as S*.
