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Good querying and visualization of moving objects and their trajectories is still an open problem. This thesis investigates three types of moving objects. First, projectiles, whose parabolic motion is difﬁcult to represent. Second, moving objects that slide down a slope. The representation of these objects is challenging because of their accelerating motion. Third, the motion of migrating animals. The motion of migrating animals is challenging because it also involves some spatio-temporal interpolation. The thesis shows a solution to these problems using ideas from physics and an implementation in the MLPQ constraint databases system. The MLPQ implementation enables several complex spatio-temporal queries that are difﬁcult or impossible to implement in other database and GIS systems. The implementation for animal migration uses real migratory sea turtle data obtained from Dr. Lohmann from the University of North Carolina at Chapel Hill.
Advisor: Peter Revesz