Amigo Herrero, DanielSánchez Pedroche, DavidGarcía Herrero, JesúsMolina López, José Manuel2023-06-292023-06-292021-10-30Amigo D, Sánchez Pedroche D, García J, Molina JM. Review and classification of trajectory summarisation algorithms: From compression to segmentation. International Journal of Distributed Sensor Networks. 2021;17(10). doi:10.1177/155014772110507291550-1329https://hdl.handle.net/10016/37673With the continuous development and cost reduction of positioning and tracking technologies, a large amount of trajectories are being exploited in multiple domains for knowledge extraction. A trajectory is formed by a large number of measurements, where many of them are unnecessary to describe the actual trajectory of the vehicle, or even harmful due to sensor noise. This not only consumes large amounts of memory, but also makes the extracting knowledge process more difficult. Trajectory summarisation techniques can solve this problem, generating a smaller and more manageable representation and even semantic segments. In this comprehensive review, we explain and classify techniques for the summarisation of trajectories according to their search strategy and point evaluation criteria, describing connections with the line simplification problem. We also explain several special concepts in trajectory summarisation problem. Finally, we outline the recent trends and best practices to continue the research in next summarisation algorithms.eng© The Author(s) 2021Atribución 3.0 Españatrajectory summarisationtrajectory segmentationtrajectory compressiondata compressionDouglas-Peuckerspatial data analysistrajectory partitioningresearch articleInformáticahttps://doi.org/10.1177/15501477211050729open access11027International Journal of Distributed Sensor Networks17AR/0000032762