| 特异值的识别、处理及块段平均品位估计 |
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| 引用本文： | 侯景儒,张树泉,黄竞先.特异值的识别、处理及块段平均品位估计[J].地质找矿论丛,1990,5(3):93-103. |
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| 作者姓名： | 侯景儒 张树泉 黄竞先 |
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| 作者单位： | 北京科技大学地质系;北京科技大学地质系;中国有色总公司北京地质所 |
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| 摘 要： |
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| 关 键 词： | 特异值 品位 指示克立格法 |
IDENTIFICATION AND HANDLING OF OUTLIERS AS WELL AS ESTIMATION OF MEAN GRADE OF BOLCKS |
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| Hou Jingru,Zhang Shuquan and Huang Jingxian.IDENTIFICATION AND HANDLING OF OUTLIERS AS WELL AS ESTIMATION OF MEAN GRADE OF BOLCKS[J].Contributions to Geology and Mineral Resources Research,1990,5(3):93-103. |
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| Authors: | Hou Jingru Zhang Shuquan and Huang Jingxian |
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| Institution: | Depart. of Geology, Beijing University of Sciences and technology;Depart. of Geology, Beijing University of Sciences and technology |
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| Abstract: | Outliers problems may be present in sampling surveys. Outliers, called extreme high grade data in geological prospecting and mining engineering, usually correspond to very high grade mineralization. So, outliers is important to geologic studing, ore reserves calculation and data processing. The paper dealt mainly with four questions:1) Concept of outliers and extreme high grade;2) statistical meaning of outliers;3) identification and handling for outliers (including: estimation neighbourhood method and influence coefficient method);4) some nonparametric statistical methods are used for data with ortliers and estimation of mean grade of blocks (including: indicator kriging, lognormal kriging, trimmed means and order-rank statistics). |
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