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考虑到矿山企业经济运行情况主要由成本利润率、工业净产值、矿山资源回收率以及工业产品销售率等因素决定,利用灰色聚类理论对矿山企业历年经济运行情况进行了定权聚类分析。根据聚类分析结果,由经济运行情况较差的年份构成灾变序列,利用灾变式GM(1,1)模型对经济运行情况较差的年份进行了预测,为矿山企业提前应对,减少经济损失提供了依据。
Considering that the economic operation of mines is mainly determined by such factors as cost-profit rate, net industrial output, recovery rate of mines resources and sales rate of industrial products, the paper uses the gray cluster theory to conduct the fixed-weight cluster analysis on the economic operation of mines in the past years. According to the result of cluster analysis, the catastrophe sequence is composed of the years with poor economic performance, and the disaster-prone GM (1,1) model is used to predict the years with poor economic performance so as to provide the mine enterprises early response and reduce the economic losses The basis.