In this paper, we present an OLAP framework for moving object data. We introduce a new operator GROUP-TRAJECTORIES for group-by operations on moving object data and present two implementation alternatives for computing groups of moving objects for group-by aggregation: group by overlap and group by intersection. We also present an interactive OLAP environment for resolution drill-down/roll-up on sets of trajectories and parameter browsing. We evaluate the performance of our GROUP-TRAJECTORIES operator by using generated as well as real life moving object datasets. Copyright

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Keywords Group-by operator, Moving object data, OLAP, Online analytical processing, Spatial OLAP
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Journal International Journal of Intelligent Information and Database Systems
Baltzer, O. (Oliver), Dehne, F, & Rau-Chaplin, A. (Andrew). (2013). OLAP for moving object data. International Journal of Intelligent Information and Database Systems, 7(1), 79–112. doi:10.1504/IJIIDS.2013.051745