Modelling and systems: Integrating web data and geographic knowledge into spatial databases ; Object-relational spatial indexing ; Indexing multi-dimensional trajectories for similarity queries -- Query processing and optimization: Approximate computation of distance-base queries ; Saptial joins: algorithms, cost models and optimization techniques -- Moving objects: Applications of moving objects databases ; Management of large moving objects databases: indexing, benchmarking and uncertainty in movement representation -- Data mining: Mining in spatio-temporal databases ; Similary learning in GIS: an overview of definitions prerequisites and challenges

1. Database management
2. Geographic information systems