Buoy Position Data Abnormaly Detection Based on Parameter Adaptive DBSCAN Algorithm
In the process of using the telemetry and remote-control system to collect data,it is easy to be disturbed by external factors and generate abnormal location data.To address this problem,a K-nearest neigh-bor optimized parameter adaptive DBSCAN algorithm is proposed to detect the anomalies in buoy position data.The algorithm proposed generates a list of optimal distance values ε in adjacent waters and the number of sam-ple points MinPts through the analysis of the distribution characteristics of the dataset,and the introduction of the Calinsky-Harabas index to score the parameters in the list,and the parameter corresponding to the highest score is used as the optimal parameter to realize the adaptive clustering of DBSCAN algorithm.The experimen-tal results show that the proposed algorithm can adaptively select the optimal parameters and realize the detec-tion of abnormal buoy telemetry position data.
buoy positionabnormal detectiontelemetry and remote control systemDBSCAN algorithmK-nearest neighbor algorithmCH index