Abstract
This paper presents a context information extraction process over Automatic Identification System (AIS) real world ship data, building a system with the capability to extract representative points of a trajectory cluster. With the trajectory cluster, the study proposes the use of trajectory segmentation algorithms to extract representative points of each trajectory and then use the K-means algorithm to obtain a series of centroids over all the representative points. These centroids combined, form a new representative trajectory of the cluster. The results show a suitable approach with several compression algorithms that are compared with a metric based on the Perpendicular Euclidean Distance.
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Acknowledgement
This research was partially funded by public research projects of Spanish Ministry of Science and Innovation, references PID2020-118249RB-C22 and PDC2021-121567-C22 - AEI/https://doi.org/10.13039/501100011033, and by the Madrid Government (Comunidad de Madrid-Spain) under the Multiannual Agreement with UC3M in the line of Excellence of University Professors, reference EPUC3M17.
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Sánchez Pedroche, D., García, J., Molina, J.M. (2023). Compression of Clustered Ship Trajectories for Context Learning and Anomaly Detection. In: García Bringas, P., et al. 17th International Conference on Soft Computing Models in Industrial and Environmental Applications (SOCO 2022). SOCO 2022. Lecture Notes in Networks and Systems, vol 531. Springer, Cham. https://doi.org/10.1007/978-3-031-18050-7_16
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