南華大學機構典藏系統:Item 987654321/6266
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    Please use this identifier to cite or link to this item: http://nhuir.nhu.edu.tw/handle/987654321/6266


    Title: 應用支援向量迴歸於國際旅遊需求之預測
    Authors: 陳寬裕;何嘉惠;蕭宏誠
    Keywords: 支援向量機
    支援向量迴歸
    類神經網路
    國際旅遊需求
    Date: 2004-06-01
    Issue Date: 2010-12-21 15:34:20 (UTC+8)
    Publisher: 南華大學旅遊事業經營學系
    Abstract: 本研究將運用支援向量迴歸技術(Support Vector Regression,SVR)建構國際旅遊需求之預測模型。為了建構穩健、可信賴的預測模型,需慎選建構模型時所必需的參數σ2、C和ε。因此先使用格子點法(grid method)配合5-fold交叉驗證技術於訓練資料集上,以求得各種不同參數組合下的交叉驗證MAPE (mean absolute percentage error),再藉由本研究所提出的,以支援向量的數量為主、評估交叉驗證MAPE為輔的參數選取機制,篩選出最佳的參數組合,最後再利用此參數組合建構實際的支援向量迴歸預測模型。此外研究中使用了敏感度分析技術(sensitivity analysis),以證明不當的選取參數將使模型容易陷於過度擬合(over-fitting)或不足擬合(under-fitting)的危機中。
    Relation: 旅遊管理研究
    4卷1期
    Appears in Collections:[The Journals of Nanhua University ] Tourism management research
    [Department of Tourism Management, The M.A. Program of Tourism Management and Leisure Environment Management] Tourism management research

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