A genetic-based approach to web service composition in geo-distributed cloud environment

被引：88
|
作者：
Wang, Dandan [1 ]
Yang, Yang [1 ]
Mi, Zhenqiang [1 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Comp & Commun Engn, Beijing 100083, Peoples R China
来源：
COMPUTERS & ELECTRICAL ENGINEERING | 2015年 / 43卷
基金：
美国国家科学基金会;
关键词：
Web service; Service composition; Cloud; Geo-distributed datacenters;
D O I：
10.1016/j.compeleceng.2014.10.008
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Independent fine-grain web services can be integrated to a value-added coarse-grain service through service composition technologies in Service Oriented Architecture. With the advent of cloud computing, more and more web services in cloud may provide the same function but differ in performance. In addition, the development of cloud computing presents a geographically distributed manner, which elevates the impact of the network on the QoS of composited web services. Therefore, a significant research problem in service composition is how to select the best candidate service from a set of functionally equivalent services in terms of a service level agreement (SLA). In this paper, we propose a composition model that takes both QoS of services and cloud network environment into consideration. We also propose a web service composition approach based on genetic algorithm for geo-distributed cloud and service providers who want to minimize the SLA violations. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：129 / 141
页数：13
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