Fig. 6From: Blockchain-oriented approach for detecting cyber-attack transactionsStructure of a single Tree and depths of WEIF. The results of normal observation are marked with blue, while the results of abnormal observation are marked with red. a The paths for a normal observation and an abnormal observation are plotted in a single isolation tree. b The depths of an observation in the whole forest are displayed as the radial line and the length of line represents the value of depthBack to article page