An efficient integrity technology of distributed database

作者：Miao, De-Cheng^*; Xi, Jian-Qing; Liu, Yong; Jia, Lian-Yin

来源：Journal of South China University of Technology(Natural Science Edition), 2012, 40(1): 131-137.

DOI：10.3969/j.issn.1000-565X.2012.01.023

• Checking strategy
• Constraint
• Cost evaluations
• Distributed database
• Integrity tests

In order to develop an efficient integrity technology of distributed database for the evaluation of prospective cost of integrity checking, a new integrity checking strategy is proposed, and two generation algorithms respectively based on the local pretest strategy and the support test strategy are designed. Moreover, a model to evaluate the cost of integrity checking is established by using the dimension-reducing technology of artificial intelligence, which provides a base for the quantitative intercomparsion of cost evaluation of integrity checking. Then, the inte-grity test, the amount of accessed data, the amount of transferred data and the number of sites involved in the computation are verified by some experiments of distributed database system. The results demonstrate that the proposed strategy and algorithms effectively reduce the integrity checking cost of distributed database, and that the established cost evaluation model is of high accuracy.

• 出版日期2012-1
• 单位华南理工大学