Web服务选择中偏好不确定问题的研究

发布时间：2018-06-12 23:38

本文选题：Web服务选择 + 条件偏好　；参考：《计算机学报》2013年02期

【摘要】：应用偏好进行服务选择是Web领域的重要研究方向.在偏好研究中,偏好信息的获得是一个复杂的过程,特别是获取的过程涉及到普通的非专家用户.获取的偏好经常会遇到偏好不完整、偏好冲突的问题,在实际应用中带来很多的问题.文中以条件偏好表示工具CP-net建模用户的偏好,总结了CP-net中出现的不确定性,定义了偏好不完整、偏好冲突.提出了CP-net对应的结果集合上的最优关系与弱化的最优关系.通过CP-net与对应最优关系的分析,提出了CP-net交运算.在此基础上,提出了解决CP-net中不确定问题的方法,并对这个方法进行了优化.最后的实验证明了文中所提出方法的正确性和有效性.
[Abstract]:Application preference for service selection is an important research direction in the field of Web. In the research of preference, the acquisition of preference information is a complicated process, especially the process of obtaining information involves ordinary non-expert users. The obtained preference often encounters the problem of incomplete preference and preference conflict, which brings a lot of problems in practical application. In this paper, the conditional preference representation tool CP-net is used to model user preferences, and the uncertainties in CP-net are summarized, and the incomplete preferences and preference conflicts are defined. The optimal relation and the weakening optimal relation on the result set corresponding to CP-net are proposed. Based on the analysis of CP-net and corresponding optimal relation, CP-net intersection operation is proposed. On this basis, a method to solve the uncertainty problem in CP-net is proposed and optimized. Finally, the experimental results show that the proposed method is correct and effective.
【作者单位】：东南大学计算机科学与工程学院;
【基金】：江苏省自然科学基金项目:面向云服务的自主软件开发方法研究(BK2010417) 国家自然科学基金项目:基于服务组合的“系统的系统”软件机理与方法(61232007)资助
【分类号】：TP393.09;TP311.13

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