基于服务工作流的服务动态预取模型  

Service dynamic pre-fetching model based on service workflow

作　　者：李海波[1] 

机构地区：[1]华侨大学计算机科学与技术学院,福建厦门361021

出　　处：《计算机集成制造系统》2014年第3期701-709,共9页Computer Integrated Manufacturing Systems

基　　金：福建省自然科学基金资助项目(2012J01272);厦门市科技计划资助项目(3502z20110013);泉州市科技计划资助项目(2011G5);华侨大学中央高校基本科研业务费资助项目(JB-ZR1147)~~

摘　　要：为了提高服务工作流的整体效率,通过工作流日志挖掘出业务的主要影响因素,再结合服务调用时的主要效率瓶颈,提出服务预取模型。通过该模型可计算出待预取的服务,以此提高服务实例化时缓冲的命中率,缩短用户的访问延迟。实验结果表明,该方法拥有服务工作流的引导优势,能为服务缓冲提供更加精确的预测。To improve the whole workflow efficiency of service workflow,the important business related factors was mined by workflow logs,and the service pre-fetching models were proposed by combining with the main efficiency bottleneck of service call.The prefetching services model was computed by these models to improve the buffer hit ratio in Web service instantiated and to shorten the access delay.Simulation results indicated that this approach had the advantage of Web service workflow and provided a more accurate prediction for Web service buffer.

关 键 词：服务工作流 业务频率 预取模型 依赖 工作流日志 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]