【作者】 李发英；

【导师】 朱海滨； 叶柏龙；

【作者基本信息】 湖南大学 ， 软件工程， 2007， 硕士

【摘要】 Web Service是封装成单个实体并发布到网络上以供其他程序使用的功能集合,是新一代部署在网络上的对象组件。Web Service的中心思想是围绕服务的发布(publish)、查找(find)和绑定(bind)展开。为了实现对Web Service的准确定位,为了获得更多的优质服务,需要提供一种高效的服务发现和服务匹配机制。本文提出了基于描述逻辑和本体的Web服务匹配模型,通过两者的有机结合实现语义级服务匹配的智能化。该模型主要包括服务注册模块、推理模块、服务匹配模块、服务提供者和服务需求者五个部分组成。论文对服务匹配算法进行了改进,提出了概念级、功能级和非功能级服务匹配算法。通过分层服务匹配机制,提高了服务匹配的准确率和精确度。最后结合具体实例对服务匹配过程进行了详细分析,对匹配结果产生的多服务返回结果问题,采用自底向上的服务分级方法加以解决。本文提出服务匹配系统在公共信息查询系统CIQS中的具体应用。将基于本体和描述逻辑的服务匹配系统应用到CIQS中,可以提高信息检索的准确性和精确度,克服了传统的基于关键字信息搜索的不足。更多还原

【Abstract】 Web Services are loosely coupled software components delivered over Internet standard technologies. The main idea of Web Service is publishing, finding and binding service.In order to realize precise location of Web Service and get better Web Service, we must provide an efficient Web Service finding and Web Service matching mechanism. A Web Service matching model which can realize intelligent Web Service matching based on description logic and ontology is provided in this paper. The model includes five parts, that is, Web Service regestry, Web Service inference, Web Service matching , Web Service provider and Web Service requestor .A Web Service matching arithmetic is improved in this paper. The service matching arithmetic is three-level matching arithmetic, concept level, function level and nofunction level. Through level-depatching mechanism, correction and precision is improved. Lastly, Web Service matching procedure is analized corresponding concret example. In order to solve multi-service results problem, service depatching method from bottom level to upper level is provided.In order to improve information seaching correction and precision, Web Service matching system based on description logic and ontology is applied to CIQS, as a result, the lack of traditional information seaching based on keyword is avoided.更多还原