Efficient querying and animation of periodic spatio-temporal databases

2025-01-17 Classification：language Click()
Author：Revesz, P; Cai, MC

Article Title：Efficient querying and animation of periodic spatio-temporal databases

Abstract：
We propose a representation of spatio-temporal objects with continuous and cyclic or acyclic periodic movements. We also describe an extended relational algebra query language for databases with such objects. We show that the new spatio-temporal databases are closed under the extended relational algebra queries, and each fixed relational algebra query can be evaluated in PTIME in the size of the input database.

Keywords: spatio-temporal databases; animation; data model; relational algebra

DOI: 10.1023/A:1016399308282

Source：ANNALS OF MATHEMATICS AND ARTIFICIAL INTELLIGENCE

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