云计算环境下自适应的可信服务组合动态协同研究

项目名称： 云计算环境下自适应的可信服务组合动态协同研究

项目编号： No.61472005

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 自动化技术、计算机技术

项目作者： 张佩云

作者单位： 安徽师范大学

项目金额： 80万元

中文摘要： 云计算环境下服务资源共享是近年来兴起的一个重要研究方向。目前的研究多注重对单个服务的利用，对服务组合协同共享的研究工作相对较少，且很少考虑如何满足用户个性化需求与可信协同问题，本项目针对上述问题，研究云计算环境下面向用户个性化需求的服务组合动态协同调度模型，此模型采用层次任务分析法对业务流程进行分解，并扩展对信任度及需求的描述；基于最优化理论与数据挖掘等方法，设计云环境下自适应可信服务组合动态协同算法，该算法通过计算信任度及QoS，发现可信优化服务，并借助上下文情境及自适应动态协同机制调控服务自治协同工作，以支持满足用户个性化需求的可信服务组合协同流程的可靠运行；设计与实现原型系统，验证模型和算法的有效性。本项目将为云环境下服务组合建模提供可行的理论框架和易于被用户接受的解决方案，此外，所提出的自适应可信服务组合动态协同方法将进一步拓展云环境下服务资源共享的应用领域。

中文关键词： 云计算；可信服务组合；动态协同；自适应

英文摘要： The sharing of service resources is an important research direction in the cloud computing environment in recent years. Current researches focus on the utilization of a single service,and comparatively,less work is done related to the service composition collaboration.And it rarely considers how to meet the personalized requirements of users and trusted collaboration. Aimed at the problems, the project studies the dynamic collaborative model of service composition which is oriented to the personalized requirements in the cloud computing environment. The model utilizes the hierarchical task analysis method to decompose business processes and expands the description of the trust and users' requirements. Based on the optimization theory and data mining methods, we design the dynamic collaboration algorithm of the self-adaptive trust service composition in the cloud environment .The algorithm computes the trust values and QoS to find the optimization services. And based on the dynamic collaborative context situational and the self-adaptive mechanism for dynamic collaboration, it can make the services work autonomously,so that the reliable implementation for trust services composition process can be supported to meet the personalized requirements of users. To verify the validity of the model and algorithms, we design and implement prototype system and focus on the application in the field of B2B. The project will provide the feasible theoretical framework for the services composition modeling and easily accepted solutions for users in the cloud computing environment. In addition, the proposed approach of self-adaptive trust service composition collaboration will further expand the fields of service resources sharing applications in cloud environment.

英文关键词： cloud computing;trust service composition;dynamic collaboration;self-adaption