An online identification approach for ship domain model based on AIS data

• Published in: PloS one Vol. 17; no. 3; p. e0265266
• Main Authors: Zhou, Wei, Zheng, Jian, Xiao, Yingjie
• Format: Journal Article
• Language: English
• Published: United States Public Library of Science 10.03.2022; Public Library of Science (PLoS)
• Subjects: Artificial intelligence; Automatic identification systems; Computer and Information Sciences; Decision analysis; Decision making; Engineering and Technology; Engineering research; Evaluation; Health risks; Identification; Identification methods; Information management; Least squares method; Least-Squares Analysis; Marine machinery; Mathematical models; Medicine and Health Sciences; Navigation; Navigation behavior; Navigation safety; Parameters; People and Places; Physical Sciences; Real time; Ship domains; Ships; Statistical analysis; Water transportation; China
• ISSN: 1932-6203; 1932-6203
• DOI: 10.1371/journal.pone.0265266

As an important basis of navigation safety decisions, ship domains have always been a pilot concern. In the past, model parameters were usually obtained from statistics of massive historical cumulative data, but the results were mostly historical analysis and static data, which obviously could not meet the needs of pilots who wish to master the ship domain in real time. To obtain and update the ship domain parameter online in time and meet the real-time needs of maritime applications, this paper obtains CRI as the weight coefficient-based PSO-LSSVM method and proposes to use short-term AIS data accumulation through the risk-weighted least squares method online rolling identification method, which can filter nonhazardous targets and improve the identification accuracy and real-time performance of nonlinear models in the ship domain. The experimental examples show that the method can generate the ship domain dynamically in real time. At the same time, the method can be used to study the dynamic evolution characteristics of the ship domain over the course of navigation, which provides a reference for navigation safety decisions and the analysis of ship navigation behavior.