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    ASIA unversity > 資訊學院 > 資訊工程學系 > 期刊論文 >  Item 310904400/102196

    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/102196

    Title: Data Preprocessing Issues for Incomplete Medical Datasets
    Authors: Huang, M.-W.;Huang, Min-Wei;林維昭;Lin, Wei-Chao;Che, Chih-Wen;Chen, Chih-Wen;*;Ke, Shih-Wen;Ke, Shih-Wen;Ts, Chih-Fong;Tsai, Chih-Fong;Eber, William;Eberle, William
    Contributors: 資訊工程學系
    Date: 2016-10
    Issue Date: 2017-03-01 14:49:30 (UTC+8)
    Abstract: While there is an ample amount of medical information available for data mining, many of the datasets are unfortunately incomplete – missing relevant values needed by many machine learning algorithms. Several approaches have been proposed for the imputation of missing values, using various reasoning steps to provide estimations from the observed data. One of the important steps in data mining is data preprocessing, where unrepresentative data is filtered out of the data to be mined. However, none of the related studies about missing value imputation consider performing a data preprocessing step before imputation. Therefore, the aim of this study is to examine the effect of two preprocessing steps, feature and instance selection, on missing value imputation. Specifically, eight different medical-related datasets are used, containing categorical, numerical and mixed types of data. Our experimental results show that imputation after instance selection can produce better classification performance than imputation alone. In addition, we will demonstrate that imputation after feature selection does not have a positive impact on the imputation result.
    Relation: EXPERT SYSTEMS
    Appears in Collections:[資訊工程學系] 期刊論文

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