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Genetic Modeling of GIS-Based Cell Clusters and Its Application in Mineral Resources Prediction
作者姓名:ZhangZhenfei  HuGuangdao  YangMingguo  XiaQinglin  JiJinseng  GaoFengliang
作者单位:[1]InstituteofMathematicalGeologyandRemoteSensing,ChinaUniversityofGeosciences,Wuhan430074 [2]DepartmentofGeosciencesandLandResources,ChanganUniversity,Xian710054
基金项目:Theworkispartiallysupportedby“idforBackboneTeachersinUniversities” ( 2 0 00)fromMinistryofEducationofChina.
摘    要:This paper presents a synthetic analysis method for multi-sourced geological data from geo-graphic information system (GIS). In the previous practices of mineral resources prediction, a usually adopted methodology has been statistical analysis of cells delimitated based on thoughts of random sam-pling. That might lead to insufficient utilization of local spatial information, for a cell is treated as a point without internal structure. We now take “cell dusters“, L e. , spatial associations of cells, as basic units of statistics, thus the spatial configuration information of geological variables is easier to be detected and utilized, and the accuracy and reliability of prediction are improved. We build a linear multi-discriminating model for the dusters via genetic algorithm. Both the right-judgment rates and the in-class vs. betweewclass distance ratios are considered to form the evolutional adaptive values of the population. An application of the method in gold mineral resoerces prediction in east Xinjiang, China is presented.

关 键 词:遗传模型  矿产资源预报  多重判别方法  遗传算法  GIS  新疆  地理信息系统  地质勘探

Genetic Modeling of GIS-Based Cell Clusters and Its Application in Mineral Resources Prediction
ZhangZhenfei HuGuangdao YangMingguo XiaQinglin JiJinseng GaoFengliang.Genetic Modeling of GIS-Based Cell Clusters and Its Application in Mineral Resources Prediction[J].Journal of China University of Geosciences,2003,14(1):85-89,94.
Authors:ZHANG Zhenfei  HU Guangdao  Yang Mingguo  XIA Qinglin  Ji Jinseng  Gao Fengliang
Abstract:This paper presents a synthetic analysis method for multi-sourced geological data from geographic information system (GIS). In the previous practices of mineral resources prediction, a usually adopted methodology has been statistical analysis of cells delimitated based on thoughts of random sampiing. That might lead to insufficient utilization of local spatial information, for a cell is treated as a point without internal structure. We now take "cell clusters", i. e. , spatial associations of cells, as basic units of statistics, thus the spatial configuration information of geological variables is easier to be detected and utilized, and the accuracy and reliability of prediction are improved. We build a linear multi-discriminating model for the clusters via genetic algorithm. Both the right-judgment rates and the in-class vs. between-class distance ratios are considered to form the evolutional adaptive values of the population. An application of the method in gold mineral resources prediction in east Xinjiang, China is presented.
Keywords:mineral resources prediction  multi  discrimination  genetic algorith m  GIS  Xinjiang  
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