【作者】 陈福集；

【导师】 杨善林；

【作者基本信息】 合肥工业大学 ， 管理科学与工程， 2004， 博士

【摘要】 当前，在世界各国积极倡导的“信息高速公路”的五个应用领域中，“电子政务”被列为第一位。电子政务系统是政府实施信息化建设的主体内容，也是全社会信息化工作的重要组成部分。在电子政务系统建设过程中，各政府常常根据自身的情况和需要，建立以政府的职能机构为中心的信息系统，这些系统往往是采用不同的技术标准、不同的软硬件平台，且各子系统封闭运行，自成一体，形成一个个的信息孤岛。随着电子政务的进一步发展，各个系统在数据共享、信息服务等方面存在的局限性和弊端日趋明显，已成为当前实施电子政务系统急需解决的迫切问题。这也是本文研究的出发点。 本文围绕面向公众的电子服务这一主题，从系统的角度出发，研究了以公众为中心的电子政务“一站式”服务框架，并在此基础上，对面向公众的信息集成和个性化信息服务进行了深入研究。主要研究内容包括： 1．概述了电子政务的内涵；总结了当前实际应用中电子政务的四种基本模式及其内容；较全面地综述了国内外电子政务的发展现状与趋势，并对存在的问题进行了有益的探讨。 2．从总体上研究了电子政务系统的框架，包括系统的分层体系结构、“三网一库”的网络平台。总结了我国政府门户网站的特点，分析了传统上以政府机构为中心的服务模式的结构和弊端，提出了面向公众、以功能驱动的电子政务系统“一站式”服务框架，并研究了这一模式的主要功能。 3．研究了政务信息资源的内容和特点；分析了政府部门对政务信息集成的迫切需求；提出了基于XML电子政务系统信息集成的总体框架，并描述了各个层次模块的功能。 4．研究了基于XML的信息交换模型；探讨了XML文件结构与数据库结构之间的映射类型，提出了基于DOM的XML文件结构与关系数据库结构之间的映射模式，并完成了这一信息交换原型的实现过程。 5．分析了个性化信息服务的用户需求；研究并提出了电子政务系统中基于数据挖掘的个性化信息服务总体框架，并描述了主要模块的功能。 6．深入研究了实现个性化信息服务的主要关键技术：采用基于关键词向量的文档分类挖掘方法来过滤掉与用户兴趣无关或重复的信息；采用基于SOM神经网络模型的聚类挖掘方法，来生成“用户个性化特征模式库”。 Internet的广泛应用和世界信息化进程的加速，对政府在办公方式、管理方式、合肥工业大学博士论文摘要服务方式等领域产生了巨大的影响。面向公众的电子服务是电子政务的核心，也是当前各国的研究热点。利用XML技术、数据挖掘技术，来研究以公众为中心的电子政务“一站式”服务框架、政务信息的集成化管理和个性化信息服务，是政府实施信息化的理论与方法的前沿课题，具有重要的理论意义和广阔的实际应用前景。关键词:电子政务系统、信息集成、个性化信息服务、数据挖掘、XML技术更多还原

【Abstract】 Currently, "E-government" ranks in the first in the five application fields for "information speedway" in the world. E-government system is the main body of governmental information infrastructure. In building e-government systems, each government has designed information systems for centering on the government institutions according to its own condition and requirement, that is, institution-centered e-government. These systems generally adopt different technology standards, different software and hardware platforms. In this case, information resources scatter in different government institutions dependently, and form "information islands". Consequently, as the farther development of e-government, the information sharing in different government institutions and the information service for the public are difficult, and become main issues that should be resolved imminently in e-government.Aiming at public-oriented electronic service, this dissertation researches on the "one-stop service" framework, information integration, information exchange and personalized information service in e-government system.Contributions of this dissertation include:1. Summarizing the connotation of e-government, discussing the four application patterns in e-government, analyzing current states and development tends in e-government, and also probing into the problems existing in current systems.2. Researching on the framework of e-government system on the whole, including the hierarchical architecture and "three networks and one database" platform. After summarizing characteristics of government web portal in our country, analyzing the limitation of service model that centers on the government institutions traditionally, "one-stop service" framework is presented, which is a single, function-driven face to the public. Functions of main modules for this model is also described.3. Discussing the contents and characteristics of government affair information, analyzing the imminent demands for the information integration. Presenting a XML-based information integration framework in e-government system, and describing its main functions.4. Researching on the information exchange model based on XML. Discussing the mapping types between XML file structure and database structure. Putting forward a DOM-based mapping model between XML file structure and relational database structure, and accomplishing prototype of this information exchange.5. After analyzing the user’s demands for personalized information service in e-government system, this dissertation put forward a personalized information serviceframework based on data mining, and describing its main functions.6. Researching on key techniques in the framework, adopting document classification mining to filtrate the information that users are not interested in, and adopting document clustering mining based on SOM to build personalized character database for users.This dissertation emphasizes on the public-oriented electronic service, which is a research hotspot for e-government at present. Using XML technique and data mining to research on "one-stop service", information integration, information exchange and personalized information service, it has important theoretical significance and wide application foreground.更多还原