| 企业协同服务组合的在线选择方法 | |
| 沈益民 ; 范玉顺 ; SHEN Yi-min ; FAN Yu-shun | |
| 2010-05-12 ; 2010-05-12 | |
| 关键词 | 企业协同 面向服务体系结构 服务组合 服务选择 服务质量 在线决策 enterprise cooperation service-oriented architecture service composition service selection quality of service online decision TP311.5 |
| 其他题名 | Online selection approach for service composition in enterprises coordination |
| 中文摘要 | 针对如何选择适当的服务,使服务质量达到最优化的目标,提出一种迭代的在线服务选择方法。服务请求者无需等待全部服务提供者做出响应,只需在候选提供者陆续到达的过程中,对选择的服务进行同步更新,就可逐步获得更好的服务质量。基于组合的多级化,采用四种基本服务质量算子及其偏微分,来降低在线最优解判定的计算复杂度。对于非线性的服务质量场合,采用任务遍历和增量确认技术提高算法效率。在线算法并不占用使用者的有效时间,因此其实际时间消耗几乎为零,而且该方法还可用于改进传统离线算法的性能。; An iterative online methodology of service selection was proposed to solve the problem of selecting appropriate service providers so as to realize the Quality of Service(QoS) optimization.With this approach,the service requester renewed the chosen services during the arriving process of providers to obtain better QoS gradually,instead of waiting until all the candidates responded to the request.Based on transforming composed service to hierarchical structure,four basic QoS operators and their partial differentials were put forward to reduce the computation complexity of determining on-line optimal solution.For non-linear QoS environment,Non-linear Increment Algorithm(NIA) with increment-confirmation and task-ergodic techniques was applied to improve computation efficiency.The actual time consumed by this approach was near zero because the online algorithm didn't occupy the user's effective time.The achieved solution could also be applied to improve the performance of the traditional offline algorithms. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/28748]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 沈益民,范玉顺,SHEN Yi-min,等. 企业协同服务组合的在线选择方法[J],2010, 2010. |
| APA | 沈益民,范玉顺,SHEN Yi-min,&FAN Yu-shun.(2010).企业协同服务组合的在线选择方法.. |
| MLA | 沈益民,et al."企业协同服务组合的在线选择方法".(2010). |
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