“….., X n }, n is the dimension of the KPI vector X. In order to make full use of the information in the indicator data, six features [38] of the normalized KPI data x = (x 1 , x 2 , ..., x n ) are mined as input data for the subsequent anomaly detection algorithm (SLI Algorithm). Different from [38], we consider both local and global features of the data in feature extraction.…”