| 基于闭合模式的高维基因表达谱多类分类 |
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| 引用本文： | 李宏,李翔,吴敏,陈松乔,易丽君.基于闭合模式的高维基因表达谱多类分类[J].中南大学学报(自然科学版),2008,39(5). |
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| 作者姓名： | 李宏 李翔 吴敏 陈松乔 易丽君 |
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| 作者单位： | 中南大学,信息科学与工程学院,湖南,长沙,410083 |
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| 基金项目： | 国家自然科学基金，中南大学校科研和教改项目 |
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| 摘 要： | 针对多类高维基因表达谱的特点,提出一种基于闭合模式的多类分类算法CBCP,即根据垂直格式的数据集采用路径枚举的方法挖掘闭合模式,极大地减少了冗余模式的产生.然后,对所有闭合模式进行排序,通过覆盖训练集建立分类器.针对分类器无法识别的样本提出权重算法进行判断,克服了使用Default类预测不精确的问题.研究结果表明,CBCP与经典分类算法如CBA和C4.5相比具有更高的预测准确率,并且在基因数大幅增加而样本数不变的情况下仍具有较强的稳定性,证明CBCP的可扩展性强,适用于高维数据集的多类分类预测.
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| 关 键 词： | 关联规则 闭合模式 多类别 权重算法 |
Multi-class classification of high-dimension gene expression profile based on closed patterns |
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| LI Hong,LI Xiang,WU Min,CHEN Song-qiao,YI Li-jun.Multi-class classification of high-dimension gene expression profile based on closed patterns[J].Journal of Central South University:Science and Technology,2008,39(5). |
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| Authors: | LI Hong LI Xiang WU Min CHEN Song-qiao YI Li-jun |
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| Institution: | LI Hong,LI Xiang,WU Min,CHEN Song-qiao,YI Li-jun(School of Information Science , Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | According to the characteristics of multi-class high-dimension gene expression profile,a new multi-class classification algorithm(CBCP) based on closed pattern was designed.Firstly an approach called path enumeration was proposed to mine closed patterns based on the vertical formatted data-table,which can reduce most redundant patterns.Then closed patterns were sorted and used to cover train dataset for building the classifier.The unrecognized samples were classified by weight algorithm,which can overcome t... |
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| Keywords: | association rules closed pattern multi-class weight algorithm |
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