The sharing of operation and management information is required by smart grid.The amount of information transmitted in electric power communication systems will increase greatly in the near future.The integrated infor...The sharing of operation and management information is required by smart grid.The amount of information transmitted in electric power communication systems will increase greatly in the near future.The integrated information transmission technology is an important method for transmitting various kinds of information via the existing broadband channels and networks in power systems.To implement integrated information transmission in power systems,the problem about how to guarantee the quality of service(QoS)of the communication services must be dealt with.展开更多
针对互联网中Web服务具有动态变化且迅速增长的特点,提出了一种面向用户需求的服务工作流构造模型.该模型将功能相同或相似的服务聚集成一类服务集合,每类服务集合采用生成树的方式组织,并依据工作流的业务逻辑关系形成业务生成图;同时...针对互联网中Web服务具有动态变化且迅速增长的特点,提出了一种面向用户需求的服务工作流构造模型.该模型将功能相同或相似的服务聚集成一类服务集合,每类服务集合采用生成树的方式组织,并依据工作流的业务逻辑关系形成业务生成图;同时,在重定义粒子群算法的位置、速度、加/减法和乘法的基础上,结合遗传算法中的交叉、变异操作,设计了基于混合粒子群的QoS(quality of service)调度方法,保证在可选服务不断增长时能够满足用户的个性化需求.实验结果表明,该模型能够有效地屏蔽组成工作流的Web服务物理上的变化与差异,较好地组合了Internet中的Web服务资源,适合于虚拟计算环境的应用要求.展开更多
文摘The sharing of operation and management information is required by smart grid.The amount of information transmitted in electric power communication systems will increase greatly in the near future.The integrated information transmission technology is an important method for transmitting various kinds of information via the existing broadband channels and networks in power systems.To implement integrated information transmission in power systems,the problem about how to guarantee the quality of service(QoS)of the communication services must be dealt with.
基金the National Natural Science Foundation of Chinaunder Grant No.60674016(国家自然科学基金)the National High-Tech Research and Development Plan of Chinaunder Grant No.2006AA04Z172(国家高技术研究发展计划(863))+1 种基金the National Science Fund for Distinguished Young Scholars of Chinaunder Grant No.60425310(国家杰出青年科学基金)the Natural Science Foundation of Hu’nan Province of Chinaunder Grant No.05JJ40118(湖南省自然科学基金)
文摘针对互联网中Web服务具有动态变化且迅速增长的特点,提出了一种面向用户需求的服务工作流构造模型.该模型将功能相同或相似的服务聚集成一类服务集合,每类服务集合采用生成树的方式组织,并依据工作流的业务逻辑关系形成业务生成图;同时,在重定义粒子群算法的位置、速度、加/减法和乘法的基础上,结合遗传算法中的交叉、变异操作,设计了基于混合粒子群的QoS(quality of service)调度方法,保证在可选服务不断增长时能够满足用户的个性化需求.实验结果表明,该模型能够有效地屏蔽组成工作流的Web服务物理上的变化与差异,较好地组合了Internet中的Web服务资源,适合于虚拟计算环境的应用要求.
