Qualitative Representation of Dynamic Attributes of Trajectories

Tales Paiva Nogueira (1) , Hervé Martin (2)

1 STEAMER - Spatio-temporal information systems
2 LIG - Laboratoire d'Informatique de Grenoble

Trajectory dynamic characteristics may be a very relevant source of information to analyze the behaviour of moving objects. However, most of existing works on trajectory representation deal only with basic parameters of trajectories, namely space and time. In this paper, we show how some derivatives of the spatio-temporal dimension, e.g. speed, acceleration, direction, may be integrated in trajectory modelling. We address the problem of representing trajectories in a way that qualitative descriptions of trajectories are stored and easily accessed through an ontology called QualiTraj which is also flexible enough to support relevant raw data representation. We validate our proposal with real GPS traces collected from a well-known sports tracking mobile application.

Mots clés: geographical information systems; trajectory analysis; semantic trajectories; dynamic; user profile; ontologies

Domaines: Autre [cs.OH]

Tales Paiva Nogueira, Hervé Martin. Qualitative Representation of Dynamic Attributes of Trajectories. 17th AGILE Conference on Geographic Information Science, Jun 2014, Castellón, Spain. ⟨hal-00987316⟩