| 徐剑波.利用区域化探数据推断地质体空间分布[J].地质与勘探,2019,55(5):1214-1222 |
| 利用区域化探数据推断地质体空间分布 |
| Inferring spatial distribution of geologic bodies by virtue of regional geochemical survey data |
| 投稿时间：2018-06-21 修订日期：2019-05-21 |
| DOI：10.12134/j.dzykt.2019.05.009 |
| 中文关键词: 化探 数据挖掘 随机森林 分类 非平衡数据 |
| 英文关键词: geochemical exploration, data mining, random forest, classification, unbalanced data set |
| 基金项目: |
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| 中文摘要: |
| 区域化探数据可以反映地层的空间分布，利用区域化探数据借助有效的数据挖掘方法,能够提取出其中包含的地质信息，对于覆盖区填图以及矿产勘查有重要意义，其中的关键问题是如何进行数据挖掘。随机森林算法是近年来热门的机器学习方法，本文应用随机森林算法结合非平衡数据集分类方法提出了一种新的化探数据挖掘方法，通过实例研究验证表明该方法准确率高，能够有效的提取出区域化探数据中的地质信息。 |
| 英文摘要: |
| Regional geochemical survey data can be used to infer the spatial distribution of geological bodies in the subsurface. It is of great significance for mapping of covered areas and mineral exploration.To do so, the key problem is how to conduct data mining and extract useful information. The algorithm random forest is a popular machine learning method in recent years. In this paper, we put forward a new method of mining geochemical data by using the random forest algorithm coupled with unbalanced dataset classification. A case study shows that this method has high accuracy and can extract geological information from regional geochemical data effectively. |
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