云计算环境下知识服务研究

发布时间：2018-04-13 15:31

本文选题：云计算 + 知识服务　；参考：《安徽工业大学》2012年硕士论文

【摘要】：21世纪人类已进入知识经济时代，知识在企业中成为一种极其重要的资源，如何充分利用企业的已有知识，如何实现知识在企业内及企业间的传递与共享是企业领导层所关心的重要问题，也是困扰知识管理者的一大难题。近年来，随着信息技术的快速发展，特别是网络技术、通信技术、以及计算机技术的不断进步，为企业知识管理提供了技术支撑，随着云计算模式的产生，任何形式的应用都能以服务的形式存在，为企业知识管理提供了新的研究视角。本文研究在云计算环境下，如何促进企业内部和企业间知识服务的共享与应用，主要工作如下： 1.构建了云计算环境下知识服务概念模型。在面向服务体系结构的基础上，结合云计算架构一切皆是服务特征，构建了云计算环境下企业知识服务的体系结构，进一步分析了知识服务云计算平台实现的四种关键技术，为云计算环境下企业知识服务系统的构建提供技术支撑。 2.阐述了云计算环境下知识服务描述模型。介绍了现有的两种基于本体的服务描述模型，分别是WSDL服务描述模型和OWL-S服务描述模型，并详细描述了基于OWL-S知识服务描述模型及其文件数据模型。 3.阐述了云计算环境下知识服务发现机制。首先介绍了服务发现的两个阶段，即服务匹配和服务绑定。然后提出了三种服务匹配模型和算法，分别是，针对输入输出参数概念匹配的功能属性匹配模型、基于语法的对服务名称和服务文本描述进行语句相似度匹配的基本属性匹配、针对非功能属性的服务性能匹配，这三者结合在一起，能够根据用户服务请求查找相似度最好的服务，并简要分析了服务绑定机制。 4.提出了云计算环境下知识服务质量评价模型。构建了云计算环境下服务性能评价指标体系、选取二级模糊综合评价模型评价单个已绑定服务的性能，，为企业知识服务提供者和知识服务请求者提供参考。
[Abstract]:In the 21st century, human beings have entered the era of knowledge economy, knowledge has become an extremely important resource in enterprises, how to make full use of the existing knowledge of enterprises,How to realize the transfer and sharing of knowledge within and among enterprises is an important issue concerned by the leaders of enterprises, and it is also a difficult problem that puzzles the knowledge managers.In recent years, with the rapid development of information technology, especially the continuous progress of network technology, communication technology and computer technology, it provides technical support for enterprise knowledge management, and with the emergence of cloud computing model,Any form of application can exist in the form of service, which provides a new research perspective for enterprise knowledge management.This paper studies how to promote the sharing and application of knowledge services within and among enterprises in the cloud computing environment. The main work is as follows:1.The conceptual model of knowledge service in cloud computing environment is constructed.On the basis of service-oriented architecture, combined with the service characteristics of cloud computing architecture, this paper constructs the architecture of enterprise knowledge service in cloud computing environment, and further analyzes the four key technologies of knowledge services cloud computing platform.It provides technical support for the construction of enterprise knowledge service system in cloud computing environment.2.The description model of knowledge service in cloud computing environment is described.This paper introduces two kinds of ontology based service description models, namely, WSDL service description model and OWL-S service description model, and describes the description model of knowledge service based on OWL-S and its file data model in detail.3.The mechanism of knowledge service discovery in cloud computing environment is expounded.First, two phases of service discovery, namely service matching and service binding, are introduced.Then, three kinds of service matching models and algorithms are proposed. They are: for the function attribute matching model of concept matching of input and output parameters, the basic attribute matching of statement similarity matching for service name and service text description based on syntax is proposed.According to the service performance matching of non-functional attributes, the three can find the most similar service according to the user service request, and briefly analyze the service binding mechanism.4.The evaluation model of knowledge service quality in cloud computing environment is proposed.The evaluation index system of service performance in cloud computing environment is constructed, and a two-level fuzzy comprehensive evaluation model is selected to evaluate the performance of a single bound service, which provides a reference for enterprise knowledge service providers and knowledge service requesters.
【学位授予单位】：安徽工业大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP3

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