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論文中文名稱:整合流形學習與隨機森林於企業危機預警之研究 [以論文名稱查詢館藏系統]
論文英文名稱:The Integrated Methodology of Manifold Learning and Random Forest for Business Distress Prediction [以論文名稱查詢館藏系統]
院校名稱:臺北科技大學
學院名稱:管理學院
系所名稱:商業自動化與管理研究所
畢業學年度:97
出版年度:98
中文姓名:李孟遠
英文姓名:Meng-Yuan Lee
研究生學號:96488060
學位類別:碩士
語文別:中文
口試日期:2009-06-29
論文頁數:54
指導教授中文名:林鳳儀
口試委員中文名:趙莊敏;葉清江
中文關鍵詞:流形學習隨機森林企業危機支持向量機
英文關鍵詞:Manifold learningRandom forestBusiness distressSupport vector machines
論文中文摘要:建構企業危機預警模式已是學術與實務界中長久討論的議題,過去有關企業危機的研究指出人工智慧如支持向量機的優異能力。而隨機森林為Breiman所發展出的新興分類方法,儘管各領域中都有應用隨機森林的研究,也有良好的分類結果,但在財務領域的研究中,隨機森林的應用並不廣泛。因此,本研究提出一整合流形學習與隨機森林的兩階段模式建構程序,來進行企業危機模式之建立。主要研究的程序,首先將輸入資料經由流形學習方法進行資料降維,再將降維之結果當作隨機森林之輸入資料,以利於隨機森林分類正確率之提升,藉此發展一個更為準確的企業危機預警模式。實證結果顯示本研究所提之方法其分類正確率優於單純使用隨機森林和支持向量機,以提供企業或投資者事前洞悉企業危機的徵兆與投資判斷之依據。
論文英文摘要:To construct of the business distress detection model has long been regarded as an important and widely studied issue in the academic and business community. Nowadays, there have been many successful applications of support vector machines (SVM) in business distress detection and data mining problems, where SVM-based models frequently received state-of-the-art results. Recently, random forest (RF) developed by Breiman, have gained popularity due to many attractive features and excellent generalization performance on a wide range of problems. Nevertheless, there has been little work on the application of RF for finance literature. In this paper, we propose a novel model to integrate manifold learning with RF technique, to crease the accuracy for the prediction of business distress. By manifold learning techniques, we can reduce this high dimensional business distress data into a much lower dimensional space, is utilized as a preprocessor to improve business distress prediction capability by RF. The results show that the proposed model provides better classification results than pure RF and support vector machine, can help investors in correct investment decisions.
論文目次:摘 要 i
ABSTRACT ii
誌 謝 iii
目錄 iv
表目錄 v
圖目錄 vi
第一章 緒論 1
1.1 研究動機 1
1.2 研究目的 3
1.3 研究架構 4
第二章 文獻探討 6
2.1 企業危機 6
2.2 企業危機預警模式 9
2.3 流形學習 13
2.4 隨機森林 20
2.5 支持向量機 23
第三章 研究方法 27
3.1 研究樣本與變數選取 28
3.2 模型建立 31
第四章 實證研究 33
4.1 研究結果 33
第五章 結論與建議 46
5.1 結論 46
5.2 建議 47
參考文獻 48
附錄 52
A危機與正常公司配對表 52
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