Title :
A heuristic for refresh policy selection in heterogeneous environments
Author :
Engström, Henrik ; Chakravarthy, Sharma ; Lings, Brian
Author_Institution :
Univ. of Skovde, Sweden
Abstract :
We address data warehouse maintenance, i.e. how changes to autonomous sources should be detected and propagated to a warehouse. We have extended our work on source characteristics and timings relevant to single source views by exploring data integration from (multiple) heterogeneous sources. We identify relevant maintenance policies and develop a set of heuristics to guide policy choice. On the basis of empirical (testbed) experiments, we claim that resulting selections are good.
Keywords :
data warehouses; distributed databases; software maintenance; data integration; data warehouse maintenance; distributed databases; heterogeneous environment; heuristics; maintenance policy; Costs; Data engineering; Data warehouses; Delay; Quality of service; Surface acoustic waves; Testing; Timing;
Conference_Titel :
Data Engineering, 2003. Proceedings. 19th International Conference on
Print_ISBN :
0-7803-7665-X
DOI :
10.1109/ICDE.2003.1260831
