Abstract
The SPOT database concept was defined several years ago to provide a declarative framework for probabilistic spatio-temporal databases where even the probabilities are uncertain. Earlier work on SPOT focused on the efficient processing of selection queries and updates. In this paper, we deal with aggregate count queries. First, we propose three alternative semantics for the meaning of such a query. Then, we provide polynomial time algorithms for answering count queries under the various semantics and discuss complexity issues.
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Grant, J., Molinaro, C., Parisi, F. (2013). Aggregate Count Queries in Probabilistic Spatio-temporal Databases. In: Liu, W., Subrahmanian, V.S., Wijsen, J. (eds) Scalable Uncertainty Management. SUM 2013. Lecture Notes in Computer Science(), vol 8078. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-40381-1_20
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DOI: https://doi.org/10.1007/978-3-642-40381-1_20
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