Method and device for detecting anomaly of time sequence KPI (Key Performance Indicator) and medium

• Main Author: SU HAIMING
• Format: Patent
• Language: Chinese; English
• Published: 02.08.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention discloses a time sequence KPI anomaly detection method and device and a medium, and relates to the field of cloud computing. The method comprises the following steps: acquiring time sequence data; obtaining an original significance feature sequence of the time series data; decomposing the original saliency feature sequence and obtaining each component after decomposition; fitting the components and adding the values on the fitted components so as to obtain a reconstructed significance feature sequence; obtaining a difference value between the original significance feature sequence and the reconstructed significance feature sequence; and obtaining abnormal data in the time series data according to the difference value. Compared with a method for determining the abnormal point in the time series data by setting a threshold value according to experience, the method provided by the invention is based on the time series data, the saliency characteristics are extracted from the time series data, the e