Obedient
发表于 2025-3-26 22:46:41
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不能妥协
发表于 2025-3-27 03:20:01
Answering Joint Queries from Multiple Aggregate OLAP Databases is more expensive computationally than P. Our contribution is in proposing a third new method, called the “Partial-Pre-aggregation” method (PP), which is significantly less expensive than F, but is just as accurate.
Arboreal
发表于 2025-3-27 05:32:38
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我没有命令
发表于 2025-3-27 10:20:05
CPM: A Cube Presentation Model for OLAP novel presentational model for OLAP screens, intuitively based on the geometrical representation of a cube and its human perception in the space. Moreover, we show how the logical and the presentational models are integrated smoothly. Finally, we describe how typical OLAP operations can be easily mapped to the CPM.
轿车
发表于 2025-3-27 13:50:30
An Approach to Enabling Spatial OLAP by Aggregating on Spatial Hierarchyaterialization, which in turn are leveraged by the OLAP system to efficiently answer spatial OLAP queries. Our prototype system shows that the proposed approach could be integrated easily into the existing data warehouse and OLAP systems to support spatial analysis. Preliminary experiment results are also presented.
FLIT
发表于 2025-3-27 19:20:07
A Multidimensional Aggregation Object (MAO) Framework for Computing Distributive Aggregationshow that caching intermediate aggregated data can significantly improve performance. Incremental compensating and full recomputing cache-updating approaches are proposed. Execution plans for deriving the aggregations from MAOs are presented. The proposed data aggregation technique can be applied to data-warehousing, OLAP, and data mining tasks.
拥护
发表于 2025-3-28 01:41:16
MetaCube XTM: A Multidimensional Metadata Approach for Semantic Web Warehousing Systemserogeneous is presented. As a result, the interoperability is accomplished by a schema integration approach based on XTM. Furthermore, important implementation aspects of the MetaCube-XTM prototype, which makes use of the Meta Data Interchange Specification (MDIS), and the Open Information Model, complete the presentation of our approach.
outset
发表于 2025-3-28 02:23:55
Conference proceedings 2003 association rules, association rules and decision trees, clustering, association rule mining, data analysis and discovery, ontologies and improving data quality, queries and data patterns, improving database query engines, and sampling and vector classification..
thyroid-hormone
发表于 2025-3-28 07:43:56
Lecture Notes in Computer Sciencehttp://image.papertrans.cn/d/image/263210.jpg
六边形
发表于 2025-3-28 13:38:45
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