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研究生: 王師凱
Shih-Kai Wang
論文名稱: Expedite Searching Processes via Virtual Links in P2P Systems
指導教授: 陳宜欣
Yi-Shin Chen
口試委員:
學位類別: 碩士
Master
系所名稱: 電機資訊學院 - 資訊工程學系
Computer Science
論文出版年: 2008
畢業學年度: 96
語文別: 英文
論文頁數: 24
中文關鍵詞: 搜尋虛擬連結效率
相關次數: 點閱:2下載:0
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  • P2P網路的研究者經常使用以興趣為基礎的捷徑來加速搜尋的過程。然而,近來提出的技術中,捷徑的數目會隨著興趣數的增加而成指數上升。
    為了解決這個問題,我們採用significant characteristics的概念,不論興趣數的多寡,其值都是一個常數。我們提出的方法是以significant characteristics為基礎來建立捷徑,所以捷徑的數目可以很容易地控制住。

    在本篇論文中,我們引進了數種方法來辨別significant characteristics。並且也提出不同的利用significant characteristics的搜尋方法。

    我們的實驗結果顯示所提出的方法在P2P系統中可以達到很好的效率。本篇研究也指出以significant characteristics為基礎的方法是可以加速在動態環境中的query過程。


    Chinese Abstract ii Abstract iii Acknowledgement iv List of Tables vii List of Figures viii 1 Introduction 1 2 Related Work 4 3 Methodology 7 3.1 Motivations of our Framework . . . . . . . . . . . . . . . . . . . . . . . . 7 3.2 Virtual Links Creation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.2.1 Forming groups by significant characteristics . . . . . . . . . . . . 8 3.2.2 Candidate Selection . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.2.3 Establish Virtual Links . . . . . . . . . . . . . . . . . . . . . . . . 11 3.3 Search With Virtual Links . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4 Performance Evaluation 13 4.1 Experimental Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.2 Experimental Results - Synthetic Data . . . . . . . . . . . . . . . . . . . . 14 4.3 Experimental Results - Real Data . . . . . . . . . . . . . . . . . . . . . . . 15 5 Conclusion and Future Work 21 References 23

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