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Position: Home > Articles > Applying RAGA-based PPE Model to Classify and Evaluate Soil Grade Bulletin of Soil and Water Conservation 2002,22 (5) 51-54

基于RAGA的PPE模型在土壤质量等级评价中的应用研究

作  者:
付强;金菊良;门宝辉;梁川
单  位:
合肥工业大学土建学院;东北农业大学水利与建筑学院;四川大学水电学院
关键词:
RAGA;PPE;土壤分类;评价
摘  要:
以往的土壤分类与等级综合评价多是建立在模糊数学 (Fuzzy)基础上的模糊聚类分析与模糊综合评判 ,因此不可避免的涉及权重矩阵人为干扰 ,导致分类与评价结果的人为倾向。本文将高维降维技术——投影寻踪评价模型 (PPE)应用到土壤学科领域 ,利用改进的加速遗传算法 (RAGA)优化投影方向 ,将多维数据指标转换到低维子空间 ,通过寻求最优投影方向及投影函数值来实现对土壤的分类与等级评价 ,避免了主观赋权的人为干扰 ,取得了较好效果 ,可为土壤分类与等级评价研究提供一条新思路
译  名:
Applying RAGA-based PPE Model to Classify and Evaluate Soil Grade
作  者:
FU Qiang 1, JIN Ju liang 2, MEN Bao hui 3, LIANG Chuan 3 (1.College of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China; 2.College of Hydraulic Power, Sichuan University, Chengdu 60065, China;3.College of Architecture, Hefei Industry University, Hefei 230009, China)
关键词:
RAGA; PPE; soil classification; evaluation
摘  要:
The research of soil classification and soil grade evaluation is often based on fuzzy theory. So the traditional method has an inevitable problem about weight matrix which given by some experts. The finally result can be influenced by artificial factor. A new technique of falling dimension named projection pursuit is applied to soil study through using the improved real coding based accelerating genetic algorithm to optimize the projection direction. Thus, it can transfer multi dimension data into one dimension data, through searching for the optimum projection direction to realize the soil classification and its grade evaluation. The method can avoid the artificial disturb, and acquire preferably effect. Thus, it provides a new method to the research of soil classification and grade evaluation.

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