统治人类
发表于 2025-3-26 22:43:45
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人类学家
发表于 2025-3-27 04:07:33
Data Warehousing and Knowledge Discovery978-3-540-48298-7Series ISSN 0302-9743 Series E-ISSN 1611-3349
陈腐思想
发表于 2025-3-27 05:56:22
The Outward Transit Pass Questionized is challenging. Several heuristic algorithms have been proposed in the past to tackle with this problem. In this paper, we propose a completely different approach, Genetic Algorithm, to choose materialized views and demonstrate that it is practical and effective compared with heuristic approaches.
沙草纸
发表于 2025-3-27 11:45:48
https://doi.org/10.1057/9781403938367In this work, we discuss issues about designing data in warehouses and make clear why meta objects are really important during designing data warehouse process. Our key ideas are . and .. We harmonize objects and meta objects seamlessly in the design process by these ideas.We discuss an experimental prototype system called . (HOME).
Vulnerary
发表于 2025-3-27 14:13:17
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胖人手艺好
发表于 2025-3-27 18:56:42
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OVERT
发表于 2025-3-27 23:07:50
Dynamic Data Warehouse Design search problem. We design incremental algorithms for selecting a set of new views to additionally materialize in the DW that fits in the extra space, allows a complete rewriting of the new queries over the materialized views and minimizes the combined new query evaluation and new view maintenance cost.
在驾驶
发表于 2025-3-28 05:32:30
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丰满中国
发表于 2025-3-28 08:46:22
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愤怒事实
发表于 2025-3-28 14:05:39
On Schema Evolution in Multidimensional Databasesmework is based on a formal conceptual description of a multidimensional schema and a corresponding schema evolution algebra. Thus, the approach is independent of the actual implementation (e.g. MOLAP or ROLAP). We also describe how the algebra enables a tool supported environment for schema evolution.