基于关键词权重量化方法的服务发现技术研究

Research and application of service discovery based on TF-IDF

对隐式经验核心概念及性质进行了形式化的定义与分析,提出了一个新的服务发现模型——ICSSD模型,该模型解决了扩展发布机制、基于语义本体及扩充服务规约结构的方法所不能解决的问题。在服务的行为和QoS参数随时间的变化而不断变化的过程中,服务的功能与非功能特性的表现和控制问题得到一种可行的解决方案。SR-Service服务推荐系统的开发实践表明,ICSSD模型有效提高了服务发现的效率,同时也为Web服务的发现过程提供了有效的动态管理机制。

This paper proposed the Web service discovery model based on implicit culture, such as ICSSD model. The model solved the problem that functional and nonfunctional characteristics of Web services could be difficult to present and control, since service behavior and QoS parameters could vary over time, and new services could emerge in certain business areas. The application resulted in the process of the development of SR-Serviee prototype system showed that the ICSSD model effectively increased the discovery capability of service and provided the robustness and self-adaptability of service discovery based application, while it also provided a dynamic management mechanism for service automatic discovery.