煤田地质与勘探2017，Vol.45Issue(1)：80-84,5.DOI:10.3969/j.issn.1001-1986.2017.01.016
基于Fisher判别分析和质心距评价法的矿井水源判别
Recognition method of mine water source based on Fisher's discriminant analysis and centroid distance evaluation
摘要
Abstract
Water inrush is one of the major disasters in coal mining, water inrush occurs, rapidly and accurately judging water inrush water is vital for flood control. When identifying the mixed water, Fisher discriminant analy-sis method can only confirm the most similar group, resulting in miscalculation, so on the basis of Fisher's dis-criminant analysis theory the centroid distance evaluation method was introduced to eliminate possible mixed water sample data, it can improve the accuracy of determination results. For this purpose, 13 kinds of hydrochemistry ions were selected as a discriminant factor, 30 representative samples as training sample to establish discriminant function model, using the discriminant function model and evaluation index of center of mass, six single water samples taken from specific aquifers and 4 mixed water samples from sump were verified and analized, after in-troduction of centroid distance evaluation and analysis, the discriminant accuracy increased from 60% to 83.3%. The research results show that using the centroid distance evaluation analysis after Fisher discriminant analysis is very useful to improve the accuracy of determination results.关键词
矿井突水/水化学分析/Fisher判别分析法/质心距评价法Key words
mine water inrush/water chemical analysis/Fisher discriminant analysis method/centroid distance evalua-tion method分类
天文与地球科学引用本文复制引用
孙福勋,魏久传,万云鹏,刘传娥..基于Fisher判别分析和质心距评价法的矿井水源判别[J].煤田地质与勘探,2017,45(1):80-84,5.基金项目
国家自然科学基金项目(41372290,51509148) （41372290,51509148）
教育部博士点基金项目(20133718110003) National Natural Science Foundation of China (41372290,51509148) （20133718110003）
Pn. D. Programs Foundation of Ministry of Education of China (20133718110003) （20133718110003）
