Titlebook: Data Warehousing and Knowledge Discovery; 9th International Co Il Yeal Song,Johann Eder,Tho Manh Nguyen Conference proceedings 2007 Springe

Hamper

Chao Yang,Haiyan Chen,Sheng Liu,Sheng Malicit in existing conceptual models. We identify a need to make this relationship more accessible..We introduce the .. It makes the relationship between the business objects and the DWH conceptually visible. The UML Profile is applied to an example.

Vasoconstrictor

neutralize

A UML Profile for Representing Business Object States in a Data Warehouselicit in existing conceptual models. We identify a need to make this relationship more accessible..We introduce the .. It makes the relationship between the business objects and the DWH conceptually visible. The UML Profile is applied to an example.

你正派

Spatio-temporal Aggregations in Trajectory Data Warehouses. Such a measure returns the number of trajectories that lie in a spatial region during a given temporal interval. We devise a novel way to compute an approximate, but very accurate, presence aggregate function, which algebraically combines a bounded amount of measures stored in the base cells of the data cube.

慷慨援助

中古

chuckle

A Clustered Dwarf Structure to Speed Up Queries on Data Cubes facilitate the implementation, we design a partition strategy and a logical clustering mechanism. Experimental results show our methods can effectively improve the query performance on data cubes, and the recursion clustering method is suitable for both point queries and range queries.

oncologist

NAV

constitutional

Linear periodic operators and systemsng or as a querying tool, helping the user in selecting the mostly preferred items. Performance evaluation based on different distributions, populations and dimensionalities show the effectiveness of the proposed scheme.