GA based Feature Selection for Nursing-care Freestyle Text Classification
GA based Feature Selection for Nursing-care Freestyle Text Classification
复制标题
基于遗传算法的护理自由文本分类特征选择
DOI:
10.14864/softscis.2008.0.756.0
复制
发表时间:
2008
期刊:
影响因子:
--
通讯作者:
R. Sakashita
中科院分区:
文献类型:
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作者:
M. Nii;Shigeru Ando;Yutaka Takahashi;A. Uchinuno;R. Sakashita
The nursing care quality improvement is very important in the medical field. Currently, nursing-care freestyle texts (nursing-care data) are collected from many hospitals in Japan by using Web applications. The collected nursing-care data are stored into the database. Some nursing-care experts evaluate the collected data to improve nursing care quality. In order to evaluate the nursing-care data, experts need to read all freestyle texts carefully. However, it is a hard task for each expert to evaluate the data because of huge number of nursing-care data in the database. For reducing workloads to evaluate nursingcare data, we have proposed a support vector machine (SVM) based classification system. In this paper, in order to improve the classification performance, we propose a genetic algorithm (GA) based feature selection method for generating numerical data from collected nursing-care texts. First, we extract nouns and verbs from nursing-care texts using the morphological analysis software “MeCab” and store the extracted terms into a “term list”. Some combinations of terms in the term list are selected by GA with two objectives; (1) maximization of the number of correctly classified texts and (2) minimization of the number of selected terms. And then, we classify the nursing-care numerical data using the SVM. From computer simulation results, we show the effectiveness of our proposed method.
DOI:
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发表时间:
2007
期刊:
Proc.of 2007 IEEE/ICME International Conference on Complex Medical Engineering
影响因子:
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作者:
下津奉久;高橋隆史;下津奉久,高橋隆史;上山英三;上山英三;新居 学;Manabu NII
通讯作者:
Manabu NII
DOI:
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发表时间:
2006
期刊:
Proc. of SCIS & ISIS 2006
影响因子:
--
作者:
下津奉久;高橋隆史;下津奉久,高橋隆史;上山英三;上山英三;新居 学;Manabu NII;Manabu NII;Manabu Nii;Tomoya Sakaguchi
通讯作者:
Tomoya Sakaguchi