Web服务的语义化组织和组合应用的设计与实现

发布时间：2018-02-03 04:00

本文关键词： 服务组合语义Web服务服务生成服务组织建模　出处：《北京邮电大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着Web服务技术的发展,越来越多的服务提供者参与到其中,Web服务也在更多的网站和软件中得到应用。更多的应用带来更多的需求,有些较为简单则可以通过单个服务完成,有些较为复杂,需要多个服务配合共同完成。目前已有的多个服务进行组合的方法研究大多含有以下几个缺点：一是使用群体单一,只限于拥有专业知识的行业人员,不具备基础知识的大众无法对其并不了解,也无法直接使用；二是未充分利用服务自身所具备的的语义信息。服务组合时过多的关注在通过操作和参数类型构造业务流程中,在服务选择和匹配时忽略了服务语义信息的重要性,导致匹配精准度和服务查询速度上略有欠缺；三是复杂服务生成后没有立即执行并结果反馈的机制,生成的服务无法验证有效性,并且没有给予使用或调用集成的方法,用户无法看到服务组合的结果也无法试用。针对以上的三个缺点,本文提出了基于图思想的语义概念图服务组织建模方法,以及从普通大众用户的需求输入到最终复杂服务执行与结果反馈的整体过程方法。本文首先从Web服务的组织与组合领域已有研究入手,对行业背景和已有研究现状进行分析,从而确定研究的切入点。之后介绍了本课题在研究中涉及到的相关技术,包括语义服务、服务聚类、业务流程、自然语言处理等方面,这些都会在之后的详细设计中不同程度地得到应用。在具体介绍项目研究过程之前,我们对系统整体的需求和各功能部分的需求进行了说明,在说明中我们介绍了系统的应用场景和功能性能要求、系统整体的架构布局,以及架构中每部分的功能需求。随后我们就研究中提出的语义概念图组织方式和语义化服务生成方法这两个关键技术做了详细阐述,对语义概念图的设计和存储以及服务生成过程中的每一步都进行了细致地讲解,并且通过实验验证了方法的正确性和可用性。在系统的具体实现上,我们选取旅游领域作为实现切入点,对旅游服务系统的整体架构以及服务组织与生成部分的每个模块进行了构造,最后对系统进行测试,服务组织与组合部分的各模块以及整体都运行正常,结果满足需求,达到了预计效果。论文最后对研究过程整体进行了总结和工作展望,对可继续研究的地方进行了说明。
[Abstract]:With the development of Web services technology, more and more service providers participate in the web services are also used in more websites and software, more applications bring more requirements. Some are simpler and can be done through a single service, while others are more complex. Most of the existing research on the combination of multiple services contains the following disadvantages: first, the use of a single group, limited to professional knowledge of the industry personnel. The general public who does not have the basic knowledge is unable to understand it, nor can it be used directly; The other is that the semantic information of service itself is not fully utilized. Too much attention is paid to constructing business process through operation and parameter type when service composition. The importance of service semantic information is neglected in service selection and matching, which leads to a slight lack of matching accuracy and query speed. The third is that the complex service is not executed immediately and the result feedback mechanism, the generated service can not verify the validity, and does not give use or call the integrated method. Users can not see the results of service composition and can not be tried. In view of the above three shortcomings, this paper proposes a semantic concept diagram service organization modeling method based on graph idea. And the whole process method from the general public user's requirement input to the final complex service execution and the result feedback. This paper begins with the existing research on the organization and composition of Web services, and analyzes the industry background and existing research status. In order to determine the starting point of the study. After the introduction of this topic in the research related technologies, including semantic services, service clustering, business processes, natural language processing and so on. All of these will be applied to different degrees in the later detailed design. Before introducing the research process of the project, we explain the requirements of the system as a whole and the requirements of each functional part. In the description, we introduce the application scenarios and functional performance requirements of the system, the overall architecture of the system layout. And the functional requirements of each part of the architecture. Then we give a detailed description of the two key technologies of semantic concept map organization and semantic service generation. The design and storage of semantic concept map and each step in the process of service generation are explained in detail, and the correctness and availability of the method are verified by experiments. We select the tourism field as the starting point of the implementation, the overall structure of the tourism service system and the service organization and generation of each module are constructed, and finally test the system. The service organization and composition part of the modules and the overall operation is normal, the results meet the demand, achieve the expected results. Finally, the research process as a whole is summarized and work prospects. The place where further study can be carried out is explained.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP311.52;TP393.09

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