摘要
针对Simitsis[1,2]等人提出的ETL过程优化算法中存在不足之处,提出了改进的启发式搜索算法,实验证明改进后的算法较好地降低了实际执行的代价,解决了原算法的短视性。
The paper analyzes the shortcomings of the Simitsis's algorithms towards the minimization of the execution of an ETL workflow.Improved algorithms are introduced,and the result of the simulation shows that the improved algorithms amend the per- formance attributes on execution cost and short sight.
出处
《计算机工程与应用》
CSCD
北大核心
2007年第26期169-173,共5页
Computer Engineering and Applications