淡江大學機構典藏:Item 987654321/108198
English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 62805/95882 (66%)
造訪人次 : 3945207      線上人數 : 594
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧：
  • 您可在西文檢索詞彙前後加上"雙引號"，以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋，建議至進階搜尋限定作者欄位，可獲得較完整資料
    •  進階搜尋


    請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/108198


    題名: Sequential estimate of partial area under ROC curve with beta-protection and optimal ratio of cases to controls
    作者: Chen, Shih-Chia;Wang, Charlotte;Chang, Yuan-chin I.
    關鍵詞: Receiving operating characteristic curve;Area under curve;Partial area under curve;Stopping rule;β‐protection
    日期: 2011-05-08
    上傳時間: 2016-11-08 02:10:35 (UTC+8)
    出版者: Elsevier BV * North-Holland
    摘要: Due to new technologies, potential variables are collected in a more efficient manner than before. Thus, how to sift effective variable from an abundance of newly discovered markers is an important issue. To this end, an adaptive sequential method is proposed for estimating the diagnostic power based on the partial area under the receiving operating characteristic curve of variables. However, the estimating accuracy of these performance criteria are usually affected by the sample sizes of two groups, say case and control. Thus, we need to decide which group to sample from as that in a two-armed bandit problem. Sequential confidence interval estimation methods are used to control the accuracy of the estimates. Both two-sided fixed-width and one-sided β‐protected confidence intervals are considered. The proposed methods are proved to be optimal, since they not only guarantee the accuracy of the performance estimates, but also maintain the ratio of cases to controls converging to their corresponding optima in terms of minimization of the variance of the estimate. When the availabilities of two classes are imbalanced or the costs of sampling them are seriously unequal, our method can include suchlike information as a part of its criteria.
    關聯: Journal of Statistical Planning and Inference 141(10), pp.3356-3366
    DOI: 10.1016/j.jspi.2011.04.021
    顯示於類別:[數學學系暨研究所] 期刊論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    index.html0KbHTML144檢視/開啟
    index.html0KbHTML98檢視/開啟
    Sequential estimate of partial area under ROC curve with beta-protection and optimal ratio of cases to controls.pdf202KbAdobe PDF1檢視/開啟

    在機構典藏中所有的資料項目都受到原著作權保護.

    TAIR相關文章

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回饋