针对传统多变量灰色模型预测城市用水量存在信息利用不充分的缺陷,依据灰色系统理论中的新信息优先原理,提出一种改进的多变量灰色模型IMGM(1,n),并在灰色关联分析法确定影响城市用水量的主要因素基础上,将IMGM(1,n)应用于深圳市用水量预测,获得了较好的效果,具有可行性和实用性。 Aiming at the defect that traditional multivariate gray model predicts the inadequate utilization of information in urban water use, an improved multivariate gray model IMGM (1, n) is proposed according to the new information priority principle in gray system theory. In the gray relational analysis Law to determine the main factors affecting urban water consumption, based on the IMGM (1, n) applied to the forecast of water consumption in Shenzhen, obtained good results, with feasibility and practicality.