Nov 15, 2023 · Aggregation functions are methods that combine several values into a single one that can represent the input values. Several important ...
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Queries that use aggregate functions such as SUM and COUNT can perform more efficiently when they use projections that already contain the aggregated data.
Aria, M., Cuccurullo, C.: bibliometrix: an R-tool for comprehensive science mapping analysis. · Batista, T., Bedregal, B., Moraes, R.: Constructing multi-layer ...
New results on pre-aggregation functions ... We analyse some properties of (light) pre-t-norms and the classes of (light) pre-t-norms, providing several examples.
Pre-Aggregation functions · directional monotonicity · p-commutativity · additivity · parallelism · shift-invariance · construction of pre-aggregation functions.
A pre-aggregation is a condensed version of the source data. It specifies attributes from the source, which Cube uses to condense (or crunch) the data.
1) To introduce the concept of pre-aggregation functions. 2) To study the first properties of these new functions. 3) To introduce three different methods for ...
Jul 9, 2024 · To improve query performance, modern OLAP systems use a technique known as practical pre-aggregation, where select combinations of aggregate ...
This paper introduces the family of CF-integrals, which are pre-aggregations functions that generalizes the Choquet integral considering a bivariate ...
To enrich its capacity, the proposed BM-type pre-aggregation function has been customized by utilizing two functions, namely M and M*, respectively. Several ...