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一种新的应用变精度粗糙集的决策树构造方法 被引量:3
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作者 王越 万洪 《重庆理工大学学报(自然科学)》 CAS 2013年第11期58-64,共7页
决策树分类方法是一种有效的数据挖掘分类方法,但在构造决策树的过程中,节点属性选择的标准直接影响分类的效果。对此,应用变精度粗糙集的理论提出了变精度决策分类熵和信息决策熵的概念,并把信息决策熵作为节点属性选择的标准。信息决... 决策树分类方法是一种有效的数据挖掘分类方法,但在构造决策树的过程中,节点属性选择的标准直接影响分类的效果。对此,应用变精度粗糙集的理论提出了变精度决策分类熵和信息决策熵的概念,并把信息决策熵作为节点属性选择的标准。信息决策熵综合考虑了属性的当前分类能力和属性之间的依赖关系,克服了只突出属性分类能力的缺点。理论和实例分析结果表明:与经典的ID3决策树算法及其他算法相比,该算法能得到简洁高效的决策树。 展开更多
关键词 决策 变精度粗糙集 变精度决策分类 信息决策熵
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Application of Matter-element and Information Entropy in Distribution Analysis of Railway Stations Dealing with Refrigeration Containers
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作者 Changfeng Zhu Qingrong Wang 《Journal of Systems Science and Information》 2009年第2期141-146,共6页
Distributing of the railway refrigeration container handling stations is influenced by multitudinous factors, such as technique and equipment conditions, intermodal traffic ability, foreground and social economy condi... Distributing of the railway refrigeration container handling stations is influenced by multitudinous factors, such as technique and equipment conditions, intermodal traffic ability, foreground and social economy conditions of the district. In this paper a maiden adoption of the matter-element is applied to combine with information entropy theory to analyze distributing the railway refrigeration container handling stations based on concerned literature and historical data, and a multi-objective decision-making model on analyzing distributing the railway refrigeration container handling stations is set up based on matter-element and extension model. Based on establishing sutra field and controlled field, we apply relating function of matter- element and extension set to get relating function value of the railway refrigeration container handling stations. Finally a case study is carried out to verify the validity, objectivity and applicability of this model through calculated and compared with traditional analysis methods. Practicality application indicates that this method can avoid subjectivity of weighting, but enhance the extensibility, the model mentioned above has guiding significance and applied value for analyzing distributing the railway refrigeration container handling stations. 展开更多
关键词 container handling stations distribution analysis MATTER-ELEMENT entropy
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