基于灰色系统理论,对灰色关联分析方法进行改进,包括分辨系数的改进以及采用距离分析法对比较序列进行赋权处理。利用改进的灰色关联分析模型,参考华北地区某矿历年来的突出资料,定量分析该矿4项煤与瓦斯突出的预测指标,确定最优预测指标。 Based on the gray system theory, the gray relational analysis method is improved, including the improvement of the resolution coefficient and the weighted analysis of the comparative sequence using the distance analysis method. By using the improved gray relational analysis model and referring to the prominent data of a certain mine in North China over the years, the forecasting indexes of 4 coal and gas outburst in this mine are quantitatively analyzed to determine the optimal forecasting index.