文献类型：期刊文献

中文题名：一种基于权重的云服务搜索算法

英文题名：A CLOUD SERVICE SEARCHING ALGORITHM BASED ON WEIGHT

作者：孙寒玉[1];顾春华[1];万锋[1];杨巍巍[1]

机构：[1]华东理工大学信息科学与工程学院,上海200237

年份：2016

卷号：33

期号：3

起止页码：38

中文期刊名：计算机应用与软件

外文期刊名：Computer Applications and Software

收录：CSTPCD;;CSCD:【CSCD_E2015_2016】；

语种：中文

中文关键词：云计算;服务组合;权重计算;搜索

外文关键词：Cloud computing; Service composition; Weight computation; Searching;

摘要：云计算技术迅猛发展,众多云服务的功能和服务质量有所不同。针对这种情况,提出一种服务权重计算方法。算法通过分析组合服务和原子服务的关系,结合服务实例的可靠性、新鲜度和负载度,计算服务实例权重值并排行,获得最优实例提供服务。数据分析和仿真实验表明,算法有效选择当前最优服务实例,提高云平台的可用性、效率和鲁棒性。
Cloud computing technology is developing rapidly,various functions and qualities of cloud services differ from each other. In view of this,we propose a service weight computation algorithm. The algorithm computes and ranks the weight of service instances by analysing the relationship of atom service and composition service and combining with reliability,novelty and load degree of service instances to obtain best instance for providing service. Data analysis and simulation experiment all show that the algorithm can pick up optimal current service instance,and promote cloud platform＇s high availability,efficiency and robustness.