摘要
为了构建支持群体决策的数据仓库,分析了传统数据更新算法及数据仓库模型的局限性,提出了一个支持群体决策的多数据仓库模型。该模型在传统数据仓库模型的数据源和数据仓库之间增加中间处理层,支持灵活的多数据仓库数据更新和管理。基于该模型,给出了支持多数据仓库的主动数据更新算法,并证明了算法的正确性和可行性。实验表明,该算法能够为多数据仓库系统有效地更新群体决策信息。
To construct a data warehouse supporting group decisions,a model of multi--data warehouse supporting group decisions was proposed based on limitation analysis of the traditional data refresh algorithm and data warehouse model. Intermediate processing layer was added between data source of tradition data warehouse model and data warehouse in order to support flexible update and management of multi--data warehouse. Based on this model,an active data refresh algorithm to support multi--data warehouse was given. The model and the algorithm were then evaluated and validated through implementations and analysis. Experiments indicated that this method could refresh the group decisions information more effectively in multi--data warehouse.
出处
《计算机集成制造系统》
EI
CSCD
北大核心
2006年第5期772-776,共5页
Computer Integrated Manufacturing Systems
关键词
群体决策
数据仓库
主动数据更新
group decision
data warehouse
active data refresh
