面向用户主导问题求解环境的服务组合方法

为提高服务组合的即时性，适应用户业务需求的变化以及服务资源的动态和异构性，提出一种适应用户主导问题求解环境的服务组合方法。探讨了维护服务交互关系的相对稳定性的策略，提出了基于服务相容性的服务聚类规则，基于聚类服务关联图的组合模板构建方法及其最优性的保障手段和组合模板的具体化方法。实验结果表明，该方法可提高服务组合的即时性和适应性，提高服务组合的时间效率。

Approach to service composition in user-oriented problem solving environment

To enable service composition just-in-time and adaptive to the heterogeneous Web services and the variability of business requirements, a service composition approach to the variability of business requirements was proposed. Measures to supply stable cooperation relations of Web services were presented, and rules to service clustering based on the compatibility of Web services were verified. Based on such rules, the approach and algorithm to service composition based on the relative graph of aggregated Web services were also given out. The experiments show the approach can improve the efficiency of service composition comparative to routine approaches, and eventually make service composition more just-in-time and adaptive in user-steering problem solving environments.