optimization update for data composition view based on data service

ISCAS OpenIR

	optimization update for data composition view based on data service
	Zhang Peng; Wang Gui-Ling; Ji Guang; Liu Chen
	2011
发表期刊	Jisuanji Xuebao/Chinese Journal of Computers
ISSN	0254-4164
卷号	34 期号:12 页码:2344-2354
摘要	Data service provides unified data model for cross-domain data integration, and generates data view through data services composition. A challenging problem is once a primitive data service is updated, how to propagate the update bottom-up to the top level via several intermediate composite data services, and to ensure the update efficiency of the data view. In this paper, the data operations and their properties are analyzed to facilitate transformation of composite data services, and generate some equivalent composite data services from a user defined composite data service. In addition, the time cost model for the incremental update of a composite data service is built. The model measures the time cost of updating a composite data service within a time unit in terms of the update frequency and data volume of the primitive data services. Based on the model, a data view update optimization algorithm is proposed to minimize the time cost. Experiments show that our approach can effectively improve the update efficiency of the data view.; Data service provides unified data model for cross-domain data integration, and generates data view through data services composition. A challenging problem is once a primitive data service is updated, how to propagate the update bottom-up to the top level via several intermediate composite data services, and to ensure the update efficiency of the data view. In this paper, the data operations and their properties are analyzed to facilitate transformation of composite data services, and generate some equivalent composite data services from a user defined composite data service. In addition, the time cost model for the incremental update of a composite data service is built. The model measures the time cost of updating a composite data service within a time unit in terms of the update frequency and data volume of the primitive data services. Based on the model, a data view update optimization algorithm is proposed to minimize the time cost. Experiments show that our approach can effectively improve the update efficiency of the data view.
收录类别	EI
关键词	Algorithms Microcellular Radio Systems Optimization Query Processing
部门归属	(1) Research Laboratory of Software Integration and Service Computing Institute of Computing Technology Chinese Acad. of Sci. Beijing 100190 China; (2) Graduate University of Chinese Acad. of Sci. Beijing 100049 China
语种	中文
内容类型	期刊论文
URI标识	http://ir.iscas.ac.cn/handle/311060/16168
专题	中国科学院软件研究所
推荐引用方式 GB/T 7714	Zhang Peng,Wang Gui-Ling,Ji Guang,et al. optimization update for data composition view based on data service[J]. Jisuanji Xuebao/Chinese Journal of Computers,2011,34(12):2344-2354.
APA	Zhang Peng,Wang Gui-Ling,Ji Guang,&Liu Chen.(2011).optimization update for data composition view based on data service.Jisuanji Xuebao/Chinese Journal of Computers,34(12),2344-2354.
MLA	Zhang Peng,et al."optimization update for data composition view based on data service".Jisuanji Xuebao/Chinese Journal of Computers 34.12(2011):2344-2354.