针对甘南县节水灌溉模式决策问题,采用高维降维技术——投影寻踪分类模型(PPC),利用基于实数编码的加速遗传算法(RAGA)GG其投影方向,将多维数据指标(样本评价指标)转换到低维子空间,根据投影函数值的大小评价出样本的优劣,从而做出决策,最大限度地避免了模糊综合评判中权重矩阵取值的人为干扰,取得了满意的效果,为节水灌溉模式决策及其他评判决策问题提供一条新的方法与思路。
Throngh applying PPC model base on RAGA in the water saving irrigation decision-making of Gannan County, the authors turn multi-dimensional data into low dimension space. The authors optimize the projection direction according to the value of projection function to make optimum decision. The PPC model can avoid jamming of weight matrix of the method of fuzzy synthesize judg ment, and obtain better result. The research provides a new method and idea for the decision-making of water-saving irrigation mode and other related problems.