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    政大機構典藏 > 商學院 > 資訊管理學系 > 期刊論文 >  Item 140.119/63954
    Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/63954


    Title: 決策樹形式知識合併修剪之研究
    Authors: 林我聰
    馬芳資
    Ma,Fang-tz;Lin,Woo-Tsong
    Contributors: 資管系
    Keywords: 知識整合;決策樹;決策樹合併;決策樹修剪
    Knowledge Integration;Decision Tree;Decision Tree Merging;Decision Tree Pruning
    Date: 2006-06
    Issue Date: 2014-02-18 15:19:33 (UTC+8)
    Abstract: 隨著知識經濟時代的來臨,知識的產生、儲存、應用、整合等已成為重要的討論議題,本研究將針對知識整合此一議題進行探討;而在知識的呈現方式中,決策樹(Decision Tree)形式知識為樹狀結構,可用圖形化方式加以呈現,它的結構簡單且易於瞭解,本研究擬針對決策樹形式知識來探討其知識整合的課題。本研究提出一個決策樹合併修剪方法DTBMPA (Decision-Tree-Based Merging-Pruning Approach)以整合既有/原始的決策樹形式知識;此方法包括三個主要程序:決策樹合併、修剪,和驗證,其做法是先將兩棵原始樹經由合併程序結合成一棵合併樹,再透過修剪程序產生修剪樹,最後由驗證程序來評估修剪樹的準確度。此決策樹合併修剪方法藉由合併程序來擴大樹的知識,再利用修剪程序來修剪合併後樹的過度分支。在本研究的實驗中,合併樹的準確度優於原始一棵樹的比率有90%,而修剪樹的準確度大於或等於合併樹的比率有80%。在統計檢定中,合併樹和修剪樹的準確度優於原始一棵樹的準確度達顯著差異;而修剪樹與合併樹的準確度雖無顯著差異。然在節點數的比較上,修剪樹的節點數較合併樹的節點數平均約少了15%。
    Relation: 電子商務研究, 4(2), 123-156
    Source URI: http://www.airitilibrary.com/Publication/alDetailedMesh?DocID=17262364-200606-4-2-123-156-a
    Data Type: article
    Appears in Collections:[資訊管理學系] 期刊論文

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