| 基于粗糙集理论的边坡稳定性评价中因素权重确定方法的研究 |
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| 引用本文： | 王广月,崔海丽,李倩.基于粗糙集理论的边坡稳定性评价中因素权重确定方法的研究[J].岩土力学,2009,30(8):2418-2422. |
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| 作者姓名： | 王广月 崔海丽 李倩 |
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| 作者单位： | 山东大学,土建与水利学院,济南,250061 |
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| 摘 要： | 为了准确计算影响边坡稳定性的各个因素的权重,应用粗糙集理论对原始数据进行挖掘,在实测数据离散化的基础上,将权重确定问题转化为粗糙集中属性重要性评价问题,建立了关于边坡稳定性评价的关系数据模型,经过属性值特征化建立了知识系统,在数据分析下通过分析评判方法对评价对象的支持度和重要性,计算出边坡稳定性评价模型的权重.该方法克服了传统权重确定方法的主观性,使得边坡稳定性评价方法更具客观性,从而提高了边坡稳定性评价的精度,通过实例说明该方法更加合理有效.
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| 关 键 词： | 边坡稳定性 粗糙集理论 属性重要性 |
| 收稿时间： | 2008-04-28 |
Investigation of method for determining factors weights in evaluating slope stability based on rough set theory |
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| WANG Guang-yue,CUI Hai-li,LI Qian.Investigation of method for determining factors weights in evaluating slope stability based on rough set theory[J].Rock and Soil Mechanics,2009,30(8):2418-2422. |
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| Authors: | WANG Guang-yue CUI Hai-li LI Qian |
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| Institution: | School of Civil and Hydraulic Engineering, Shandong University, Jinan 250061, China |
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| Abstract: | To compute the weight factors that influence slope stability accurately, rough sets theory is used to analysis the raw data. Based on discretization of the measured data, the significance of attributes among rough sets is estimated instead of weight determination, and a relation data model about slope stability assessment is established. A knowledge system is built through making attribute value into eigenvalue. During data analysis, the weight of a slope stability assessment model is computed by analyzing the support and significance of forecasting method for the predicted object. The proposed approach overcomes the subjectivity of traditional weight determination method, improving the precision of risk assessment for slope stability. At last, an example is given to show the effectivity and rationality of this new method. |
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| Keywords: | slope stability rough set theory importance of attribute |
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