| 加权证据权模型和逐步证据权模型及其在个旧锡铜矿产资源预测中的应用 |
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| 引用本文： | 张生元,成秋明,张素萍,夏庆霖.加权证据权模型和逐步证据权模型及其在个旧锡铜矿产资源预测中的应用[J].地球科学,2009,34(2). |
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| 作者姓名： | 张生元 成秋明 张素萍 夏庆霖 |
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| 作者单位： | 张生元,ZHANG Sheng-yuan(石家庄经济学院资源与环境工程研究所,河北石家庄050031;中国地质大学地质过程与矿产资源国家重点实验室,湖北武汉,430074);成秋明,夏庆霖,CHENG Qiu-ming,XIA Qing-lin(中国地质大学地质过程与矿产资源国家重点实验室,湖北武汉,430074);张素萍,ZHANG Su-ping(石家庄经济学院资源与环境工程研究所,河北石家庄,050031)
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| 基金项目： | 国家自然科学基金重点项目，地质调查项目，地质过程与矿产资源国家重点实验室开放项目，国家高技术研究发展计划(863计划)，地质过程与矿产资源国家重点实验室科技部专项经费资助项目 |
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| 摘 要： | 为了消除和减弱当证据层不满足条件独立性假设时对预测结果产生的影响,提出了逐步证据权模型和加权证据权模型.加权证据权模型通过对logit模型进行修改,对各个证据层给予一定的权重,以调整由于证据层与其他证据层的条件相关性对模型的影响;逐步证据权模型是将证据层按照一定的顺序逐步加入到模型中,在加入到模型的过程中依次用已经获得的后验概率作为模糊训练层的方法.以个旧锡铜多金属矿产资源预测为例,应用4种证据权模型的后验概率进行异常圈定,结果表明两种新的模型对减弱证据层不满足条件独立性假设所产生的影响是有效的.
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| 关 键 词： | 逐步证据权 加权证据权 logit模型 云南个旧 |
Weighted Weights of Evidence and Stepwise Weights of Evidence and Their Applications in Sn-Cu Mineral Potential Mapping in Gejiu,Yunnan Province,China |
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| ZHANG Sheng-yuan,CHENG Qiu-ming,ZHANG Su-ping,XIA Qing-lin.Weighted Weights of Evidence and Stepwise Weights of Evidence and Their Applications in Sn-Cu Mineral Potential Mapping in Gejiu,Yunnan Province,China[J].Earth Science-Journal of China University of Geosciences,2009,34(2). |
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| Authors: | ZHANG Sheng-yuan CHENG Qiu-ming ZHANG Su-ping XIA Qing-lin |
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| Institution: | ZHANG Sheng-yuan1,2,CHENG Qiu-ming2,ZHANG Su-ping1,XIA Qing-lin21.Institute of Natural Resources , Environment Engineering,Shijiazhuang University of Economics,Shijiazhuang050031,China2.State Key Laboratory of Geological Processes , Mineral Resources,China University of Geosciences,Wuhan430074,China |
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| Abstract: | This paper proposes two kinds of new models of weight of evidence:weighted weights of evidence and stepwise weights of evidence to reduce the influence of correlation among evidence layers when hypothesis of conditional independence is not held.In the weighted weights of evidence model,an adjustment of weight of evidence is made to reduce the influence of correlation among evidence layers.In the stepwise model,each evidence layer is added into the logistic model as if a single layer whose weight can be calc... |
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| Keywords: | stepwise weights of evidence weighted weights of evidence logit model Gejiu of Yunnan Province |
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