A Theory of Spatio-Temporal Database Queries
DBPL '01 Revised Papers from the 8th International Workshop on Database Programming Languages
Time-dependent affine triangulation of spatio-temporal data
Proceedings of the 12th annual ACM international workshop on Geographic information systems
First-order complete and computationally complete query languages for spatio-temporal databases
ACM Transactions on Computational Logic (TOCL)
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We present a data model for movies and movie databases. A movie is considered a 2-dimensional semi-algebraic figure that can change in time. We give a number of computability results concerning movies: it can be decided whether a frame of a movie is only a topologically transformation of another frame; a movie has a finite number of scenes and cuts and these can be effectively computed.Based on these computability results we define an SQL-like query language for movie databases. This query language supports most movie editing operations like cutting, pasting and selection of scenes.