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研究生： 李韋承
Li, Wei-Cheng
論文名稱： 建構階層式知識地圖及其知識搜尋法之研究
Toward An Ontology-based Hierarchical Knowledge Map and its Effective Knowledge Search Approach
指導教授： 李昇暾
Li, Sheng-Tun
學位類別： 碩士
Master
系所名稱： 管理學院 - 資訊管理研究所
Institute of Information Management
論文出版年： 2005
畢業學年度： 93
語文別： 中文
論文頁數： 64
中文關鍵詞： 自我組織映射圖類神經網路 、資訊擷取 、知識地圖 、本體論 、知識管理 、文件視覺化
外文關鍵詞： Information retrieval, Knowledge map, Self-organizing map, Document visualization
相關次數： 點閱：108  下載：3 
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    • 　　自網際網路(World Wide Web)發明以來，全球資訊量便以指數型態爆炸性的成長，而身處於現在的知識社會，每個人對於資訊的需求也與日俱增；但是，如此龐大的資訊卻又造成了資訊過載，使得傳統的資訊檢索工具已無法因應知識工作者所需，是以如何能夠在一片茫茫的資訊洪流中，找尋相關且有用的資訊，便成為知識管理的一個重要的課題，也因而一套更有效的資訊瀏覽工具是有其必要性。在新進發展的各種瀏覽工具中，知識地圖利用了電腦的強大運算功能，臨摹地理學上製圖的方式，彙整大量的資料，整理出有用的資訊，以視覺化的地圖方式，有系統地表達出文件分布概況，以提供整體性的瀏覽，進而轉換成知識；而樹狀階層式的表達方式，則有助於使用者概觀地了解此份知識文件的結構，還可以摺疊冗贅的知識地圖，或是將粗略的知識地圖精緻化。本計劃將提出一個新的建置階層式知識地圖的方法論，其利用本體論主導文件特徵擷取，再根據文件彼此間的相似度，輔以非監督式階層式自我組織映射圖類神經演算法，配合視覺化之圖形工具，分析知識文件所隱含的語意架構，建構出適合知識工作者瀏覽之階層式知識地圖，最後再以客觀的衡量標準，以驗證本研究所提出的瀏覽模式工具之實用性與效度。

    　Since the emergence of the Internet, the amount of information has been grown exponentially. Everyone, as a member of knowledge society, is eager for the assistance and advantage brought by information. However, such a huge amount of information not only results in information overloading but also makes traditional information-retrieval tools incapable of dealing with this situation effectively. Thus, a more intelligent information searching and browsing methodology becomes the key issue in digging out useful knowledge in the so-called information smoke. In particular, knowledge map has been shown as a successful tool for tackling the issue. Knowledge maps can take the advantage of computer strength in powerful computation ability, imitate drafting techniques of geography field, compile innumerous data and useful information and then demonstrate the implicit relationship existing the knowledge objects in a visual map. In addition, it provides a whole picture for knowledge works when browsing so that they can benefit from the knowledge sharing and distribution. Moreover, a tree-like hierarchy can help them understand how the architecture of knowledge documents is set instantly in a general view point or how superfluous knowledge maps can be folded up. In this project, we will propose a new methodology of constructing a hierarchical knowledge map which mainly involves ontology-guided feature extraction, conceptual relationship construction by the hierarchical growing self-organizing map algorithm, visualization of the implicit semantic relationships The effectiveness and efficiency the proposed methodology will be justified by performing experiments on real-world applications.

    中文摘要......................................................................................................I 英文摘要.....................................................................................................II 目錄............................................................................................................III 圖目錄........................................................................................................V 第一章 緒論...................................................................................................................................6 第一節 研究背景..........................................................................................................................6 第二節 研究動機..........................................................................................................................7 第三節 研究目的..........................................................................................................................9 第四節 研究範圍與限制............................................................................................................10 第五節 研究流程........................................................................................................................11 第六節 論文架構........................................................................................................................11 第二章 文獻探討.........................................................................................................................13 第一節 知識的簡介....................................................................................................................13 一、 知識的定義........................................................................................................................13 二、 知識管理............................................................................................................................14 第二節 本體論...........................................................................................................................15 一、 本體論的定義.....................................................................................................................15 二、 本體論與知識管理.............................................................................................................16 第三節 資訊檢索........................................................................................................................17 一、 資訊檢索之介紹.................................................................................................................17 二、 本體論與資訊檢索.............................................................................................................19 第四節 文件分群........................................................................................................................20 一、 分群法之基本介紹.............................................................................................................20 二、 自我組織映射圖.................................................................................................................21 三、 增長階層式自我組織映射圖.............................................................................................23 四、 資訊檢索與文件分群.........................................................................................................26 第五節 知識地圖........................................................................................................................26 一、 知識地圖的定義.................................................................................................................27 二、 近年來知識地圖的發展.....................................................................................................27 三、 知識地圖相關技術.............................................................................................................28 第三章 研究方法.........................................................................................................................30 第一節 知識地圖的整體架構....................................................................................................30 第二節 基本特徵值取得............................................................................................................32 一、 資料預先處理.....................................................................................................................32 二、 文件特徵擷取.....................................................................................................................32 第三節 利用本體論的特徵擷取................................................................................................33 一、 本體論的驗證.....................................................................................................................33 二、 本體論描述符號解釋.........................................................................................................34 三、 特徵擴張方法.....................................................................................................................34 第四節 文件分群與地圖呈現....................................................................................................37 一、 文件分群............................................................................................................................37 二、 地圖呈現............................................................................................................................38 第五節 搜尋機制........................................................................................................................39 一、 知識地圖的瀏覽.................................................................................................................39 二、 關鍵字查詢........................................................................................................................40 第四章 實作與驗證.....................................................................................................................41 第一節 系統架構........................................................................................................................41 一、 系統配置與元件.................................................................................................................41 二、 系統功能............................................................................................................................44 三、 系統介面簡介.....................................................................................................................45 第二節 實驗範圍........................................................................................................................49 一、 資料蒐集領域.....................................................................................................................49 二、 實驗材料............................................................................................................................50 第三節 系統驗證........................................................................................................................51 一、 指標值簡介........................................................................................................................51 二、 知識地圖的判讀.................................................................................................................53 三、 指標值分析........................................................................................................................55 第五章 結論與建議......................................................................................................................57 第一節 結論...............................................................................................................................57 一、 加入本體論的文件分析法.................................................................................................57 二、 找出知識領域文件的架構.................................................................................................57 三、 視覺化的知識瀏覽法.........................................................................................................58 第二節 未來研究方向................................................................................................................58 一、 複合字的解析方法.............................................................................................................58 二、 中文字的解析方法.............................................................................................................58 參考文獻...........................................................................................................................59

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