model of data (original) (raw)

Twenty-Third Annual Hawaii International Conference on System Sciences, 1990

Abstract

Aggregation is formalized in terms of the power set and the Cartesian product operators. It is shown that aggregation semantics can be represented by a labeled directed acyclic graph (LDAG). Vertices and edges of this graph are labeled to capture the semantics (constraints) of aggregations. Examples of popular real-world aggregations are given in terms of this LDAG. It is argued

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