设备网格溯源服务的应用  

Application of provenance service in equipment grid

作　　者：殷杰[1] 王跃宣[2] 胡美枝[2] 吴澄[1] 

机构地区：[1]清华大学自动化系,北京100084 [2]清华大学计算机科学与技术系,北京100084

出　　处：《清华大学学报（自然科学版）》2008年第7期1225-1228,共4页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金资助项目(60604033);国家"八六三"高技术项目(2006AA10Z216);西安交通大学机械制造系统工程国家实验室开放基金项目(20060701)

摘　　要：为解决设备网格中资源动态变化造成的实验重现的困难,引入溯源服务。溯源服务以Web服务形式存在,记录设备网格内实验过程中诸如服务调用时间、服务请求者、服务提供者及用户评价等重要信息,形成溯源信息。为提高用户的满意程度,使用模糊变量来描述用户对其实验结果的评价,将溯源信息用于设备池的设备选择算法,增加令用户满意的服务质量好的仪器设备的使用率。实验结果表明:相对于随机调度算法,基于溯源信息的设备选择算法使得用户满意程度达80%。Experiments can not be easily reproduced in equipment grid because of resource fluctuations. Hence the provenance service was imported into the equipment grid in the form of web services to record important information, such as service invoking times, service requests, service provider and user appraisals, which form the provenance information. The user appraisals are evaluated using fuzzy variables to depict their contentment with their experiment results. Provenance information system was implemented in an equipment scheduling algorithm for equipment pools to increase the utilization ratio of high demand items to improve user satisfaction. Simulations show that the provenance based equipment scheduling algorithm increases user satisfaction to 80% compared with the random scheduling algorithm.

关 键 词：计算机网络 设备网格 设备池 溯源 调度 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]