RT Journal Article T1 Review and classification of trajectory summarisation algorithms: From compression to segmentation A1 Amigo Herrero, Daniel A1 Sánchez Pedroche, David A1 García Herrero, Jesús A1 Molina López, José Manuel AB With 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. PB Sage Journals SN 1550-1329 YR 2021 FD 2021-10-30 LK https://hdl.handle.net/10016/37673 UL https://hdl.handle.net/10016/37673 LA eng NO The author(s) disclosed receipt of the following financial support for the research, authorship and/or publication of this article: This work was funded by public research projects of Spanish Ministry of Economy and Competitivity (MINECO), reference TEC2017-88048-C2-2-R DS e-Archivo RD 17 jul. 2024