一种基于条件信息熵的多目标代价敏感属性约简算法的研究 |
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引用本文: | 徐冰心,陈慧萍.一种基于条件信息熵的多目标代价敏感属性约简算法的研究[J].云南民族大学学报(自然科学版),2014(2):141-145. |
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作者姓名: | 徐冰心 陈慧萍 |
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作者单位: | ;1.河海大学物联网工程学院 |
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摘 要: | 代价敏感学习是数据挖掘和机器学习领域的重要课题.已有的研究方法多数针对单目标进行优化,并不适用于多目标代价敏感问题的解决.因此通过分析基于粗糙集领域的单目标代价敏感属性约简问题,定义了多目标代价敏感属性约简问题,并设计了一种简单高效的算法.在4个UCI数据集上的实验结果表明,该算法能获得令人满意的帕累托最优解集,以辅助用户进行方案的选择.
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关 键 词: | 代价敏感学习 粗糙集 属性约简 测试代价 延迟代价 |
Multi- objective cost- sensitive attribute reduction based on conditional information entropy |
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Institution: | ,College of IOT Engineering,Hohai University |
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Abstract: | Cost- sensitive learning is a focus in the field of data mining and the application of machine learning. The existing cost- sensitive learning researches usually focus on the algorithms dealing with a single- objective optimization rather than multi- objective cost- sensitive problems. This research defines and tackles the multi- objective attribute reduction problem with multiple types of cost. Experimental results on four UCI datasets indicate that this approach is effective to obtain satisfactory Pareto- optimal solution set and helpful to users in the scheme selection. |
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Keywords: | cost-sensitive learning rough sets attribute reduction test cost time cost |
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