Sampling Trajectory Streams with Spatiotemporal Criteria
SSDBM '06 Proceedings of the 18th International Conference on Scientific and Statistical Database Management
Semantics of Spatially-Aware Windows Over Streaming Moving Objects
MDM '07 Proceedings of the 2007 International Conference on Mobile Data Management
Window specification over data streams
EDBT'06 Proceedings of the 2006 international conference on Current Trends in Database Technology
Querying geospatial data streams in SECONDO
Proceedings of the 17th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
Event processing and real-time monitoring over streaming traffic data
W2GIS'12 Proceedings of the 11th international conference on Web and Wireless Geographical Information Systems
OCEANUS: a spatio-temporal data stream system prototype
Proceedings of the Third ACM SIGSPATIAL International Workshop on GeoStreaming
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We report on our experience from design and implementation of a powerful map application for managing, querying and visualizing evolving locations of moving objects. Instead of building a specialized spatiotemporal database, we have chosen to retain geographic information in a renowned stream processing engine with native support for spatial features. Through a graphical interface, users are able to specify typical continuous queries (such as range, distance, or nearest neighbor search), and receive incremental results. Moreover, this application offers capabilities for visual display of objects' trajectories and online collection of movement statistics.