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Research and Realization of Web 2.0-Based Knowledge Management System

Author: WangZuoRong
Tutor: ChenJianBo；QiKaiYue
School: Shanghai Jiaotong University
Course: Communication and Information System
Keywords: Web 2.0 Knowledge Management System(KMS) Vector Space Model(VSM) hierarchical tagging knowledge evaluating model knowledge life-cycle management model
CLC: TP311.52
Type: Master's thesis
Year: 2009
Downloads: 121
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Abstract


Web 2.0 is a new user-centered interaction pattern. Compared with traditional Web 1.0 model, in Web 2.0, users are not only content consumers but also content generators. More and more new content value-adding patterns and personalized services are being brought forward. To better derive benefits from the Web 2.0 model and develop better Web 2.0 applications, it is of great significance to further analyze and study the information managing techniques, the way to provide personalized content services and possible means to increase the information’value as well as the evaluating method.In this thesis, we firstly study the main characteristics of Web 2.0, especially the key differences compared with Web 1.0. Based on these analyses and with reference to current research findings in the knowledge management field, we analyze the necessity and significance of studying the Web 2.0 Knowledge Management System (KMS), and the main concerns of constructing Web 2.0 KMS.Secondly, based on the new features of Web 2.0, after studying the functional improvement demands of Web 2.0 knowledge management, we design and raise the general structure of KMS, which consists of the knowledge management platform and the application platform. We preliminarily demonstrate that this structure can effectively suit the Web 2.0 user-centered interaction model by applying it to the typical scenario of E-Business circumstances.Thirdly, we further our study on the key technologies in constructing the Web 2.0 KMS: (1)After analyzing the pros and cons of traditional catalog categorizing technologies, a hierarchical tagging technique using Vector Space Model (VSM) is brought forward; and by tracing users’tagging behavior, we could expand the inquiry to provide personalized information retrieving. (2)We bring forward the knowledge evaluating model based on correlation and maturity, with the correlation result being computed by constructing the KMS using VSM technique, while the maturity result being computed by analyzing the retrieved data of the rich interactions between users and the system. (3)We come up with the knowledge maturity value based knowledge life-cycle model, which emphasized knowledge’s complete life-cycle management, and illustrate different behavior patterns of users, system operators and third-party content vendors in different life cycle stages.Lastly, to validate the feasibility of the Web 2.0 KMS model we bring forward and the related key KMS-constructing technologies, we design and implement such a KMS prototype in the view point of a Web 2.0 Wiki. The Web 2.0 Wiki system uses the Web 2.0 KMS model raised above, together with the technologies of the hierarchical tagging, knowledge maturity computing and the knowledge life-cycle model. With this system, we further analyze the effect of the hierarchical tagging. Also we design and conduct experiments to examine the effectiveness of the knowledge maturity value model and knowledge life-cycle model in the aspect of promoting the value-adding process of the knowledge in order to better allocate the system resources. The feasibilities of both the KMS model and the related key technologies are proven by the experiment results, and the Wiki prototype could also provide a reference in constructing a Web 2.0 KMS. .To sum up, our research findings, including the Web 2.0 KMS, the VSM based hierarchical tagging technique, the knowledge value model and the knowledge life-cycle model, provide a sound basis for designing Web 2.0 KMSs and managing Web 2.0 knowledge.

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