[1]刘勇健,刘义建.基于粗糙集的范例推理在泥石流危险性评价中的应用[J].山地学报,2008,(02):223.
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基于粗糙集的范例推理在泥石流危险性评价中的应用()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2008年02期
页码:
223
栏目:
山地学报
出版日期:
2008-03-15

文章信息/Info

作者:
刘勇健;刘义建;
广东工业大学岩土工程研究所;湖南省地质矿产勘查开发局407队 广东广州510006;湖南怀化418000
关键词:
泥石流; 危险性评价; 粗糙集; 范例推理; 相似度量
文献标志码:
A
摘要:
将粗糙集理论和范例推理相结合,建立了基于粗糙集-范例推理的泥石流危险性评价模型。运用粗糙集理论对范例库中的范例进行属性约简和特征向量权值计算,用相似度量理论来实现最相似范例检索,得到泥石流的危险性评价结果。选取了一次泥石流(可能)最大冲出量,泥石流发生频率、流域面积、主沟长度、流域相对高差、流域切割密度、24h最大降雨量、松散固体物质储量共8个因素作为泥石流危险性的影响因子;选取云南东川和西藏八宿等共14条泥石流沟资料进行建模分析。实例研究表明,基于粗糙集-范例推理的泥石流危险性评价结果与实际状态相吻合,该方法具有简便、高效、直观、实用的特点。

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更新日期/Last Update: 2008-03-15