Une algèbre pour la représentation et la manipulation spatio-temporelle et sémantique des trajectoires d'objets mobiles
Donia Zheni Épouse Triki · HAL (Le Centre pour la Communication Scientifique Directe) · 2015
Nowadays, the increasing development of positioning andwireless communication technologies favors a better real-time integrationand manipulation of large spatial databases. This oers many newopportunities for the development of trajectory databases, but a numberof research challenges are still open as the generated information isoften unstructured, continuous, large and sometimes unpredictable. Theresearch presented in this paper develops a modeling approach that integratesthe semantic, spatial and temporal dimensions when representingspatial trajectories at the abstract and logical levels. A data manipulationlanguage that supports the querying and analysis of large trajectorydatabases is also proposed. The spatial database model is based on algebraicdata types, and a prototype is developed on top of the DBMSPostgreSQL/PostGIS. The whole approach and the prototype developmenthave been experimented and applied to benchmark transportationdata derived from an origin-destination survey in the region of Quebecin Canada.