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Τετάρτη 24 Μαΐου 2017

Fuzzy and uncertain spatio-temporal database models : a constraint-based approach

In this paper a constraint-based generalised object-oriented database model is adapted to manage spatiotemporal information. This adaptation is based on the definition of a new data type, which is suited to handle both temporal and spatial information. Generalised constraints are used to describe spatio-temporal data, to enforce integrity rules on databases, to specify the formal semantics of a database scheme and to impose selection criteria for information retrieval.

http://ift.tt/2qfsWWE

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