OLAP for Trajectories

10 years 3 months ago
OLAP for Trajectories
In this paper, we present an OLAP framework for trajectories of moving objects. We introduce a new operator GROUP TRAJECTORIES for group-by operations on trajectories and present three implementation alternatives for computing groups of trajectories for group-by aggregation: group by overlap, group by intersection, and group by overlap and intersection. We also present an interactive OLAP environment for resolution drill-down/roll-up on sets of trajectories and parameter browsing. Using generated and real life moving data sets, we evaluate the performance of our GROUP TRAJECTORIES operator.
Oliver Baltzer, Frank K. H. A. Dehne, Susanne E. H
Added 19 Oct 2010
Updated 19 Oct 2010
Type Conference
Year 2008
Where DEXA
Authors Oliver Baltzer, Frank K. H. A. Dehne, Susanne E. Hambrusch, Andrew Rau-Chaplin
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