APPLYING PPE MODEL BASED ON RAGA TO CLASSIFY AND EVALUATE SOIL GRADE

FU Qiang; LU Tie-guang; FU Hong

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APPLYING PPE MODEL BASED ON RAGA TO CLASSIFY AND EVALUATE SOIL GRADE

FU Qiang, LU Tie-guang, FU Hong

文章导航 > Chinese Geographical Science > 2002 > 12(2): 136-141

FU Qiang, LU Tie-guang, FU Hong. APPLYING PPE MODEL BASED ON RAGA TO CLASSIFY AND EVALUATE SOIL GRADE[J]. 中国地理科学, 2002, 12(2): 136-141.

引用本文:

FU Qiang, LU Tie-guang, FU Hong. APPLYING PPE MODEL BASED ON RAGA TO CLASSIFY AND EVALUATE SOIL GRADE[J]. 中国地理科学, 2002, 12(2): 136-141.

FU Qiang, LU Tie-guang, FU Hong. APPLYING PPE MODEL BASED ON RAGA TO CLASSIFY AND EVALUATE SOIL GRADE[J]. Chinese Geographical Science, 2002, 12(2): 136-141.

Citation:

FU Qiang, LU Tie-guang, FU Hong. APPLYING PPE MODEL BASED ON RAGA TO CLASSIFY AND EVALUATE SOIL GRADE[J]. Chinese Geographical Science, 2002, 12(2): 136-141.

APPLYING PPE MODEL BASED ON RAGA TO CLASSIFY AND EVALUATE SOIL GRADE

1.
College of Hydraulic Power, Sichuan University, Chengdu 610065, P. R. China;
2.
Northeast Agricultural University, Harbin 150030, P. R. China

基金项目: Under the auspices of China Postdoctoral Science Fund and the Youth Fund of Sichuan University(432028).

详细信息

作者简介:
FU Qiang( 1973- ),male,a native of Jinzhou City, Liaoning Province, associate professor, postdoctor in Sichuan Univercity. His research interests include building up mathematical models and its optimization about water saving irrigation, agricultural water resources and agricultural system engineering.

中图分类号: S155

APPLYING PPE MODEL BASED ON RAGA TO CLASSIFY AND EVALUATE SOIL GRADE

1.
College of Hydraulic Power, Sichuan University, Chengdu 610065, P. R. China;
2.
Northeast Agricultural University, Harbin 150030, P. R. China

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, and the final result can be influenced by artificial factors. The essentials of fuzzy synthetically judge is to handle the data of high dimension. That is to reducing the dimension number. The weight matrix in fuzzy theory is corresponding to low dimension projection value of each index. But we can't define whether the weight matrix given by experts is the best projection value or not. So, the authors apply a new technique of falling dimension named projection pursuit 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 disturbance, and acquire preferably effect. Thus, the paper provides a new method to the research of soil classification and grade evaluation.
- RAGA /
- PPE /
- soil classification /
- soil evaluation
Abstract: 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, and the final result can be influenced by artificial factors. The essentials of fuzzy synthetically judge is to handle the data of high dimension. That is to reducing the dimension number. The weight matrix in fuzzy theory is corresponding to low dimension projection value of each index. But we can't define whether the weight matrix given by experts is the best projection value or not. So, the authors apply a new technique of falling dimension named projection pursuit 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 disturbance, and acquire preferably effect. Thus, the paper provides a new method to the research of soil classification and grade evaluation.
- RAGA /
- PPE /
- soil classification /
- soil evaluation

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APPLYING PPE MODEL BASED ON RAGA TO CLASSIFY AND EVALUATE SOIL GRADE

1. College of Hydraulic Power, Sichuan University, Chengdu 610065, P. R. China;

2. Northeast Agricultural University, Harbin 150030, P. R. China

基金项目: Under the auspices of China Postdoctoral Science Fund and the Youth Fund of Sichuan University(432028).

作者简介:
FU Qiang( 1973- ),male,a native of Jinzhou City, Liaoning Province, associate professor, postdoctor in Sichuan Univercity. His research interests include building up mathematical models and its optimization about water saving irrigation, agricultural water resources and agricultural system engineering.

收稿日期: 2001-12-24
刊出日期: 2002-06-20

中图分类号: S155

关键词:

RAGA /

PPE /

soil classification /

soil 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, and the final result can be influenced by artificial factors. The essentials of fuzzy synthetically judge is to handle the data of high dimension. That is to reducing the dimension number. The weight matrix in fuzzy theory is corresponding to low dimension projection value of each index. But we can't define whether the weight matrix given by experts is the best projection value or not. So, the authors apply a new technique of falling dimension named projection pursuit 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 disturbance, and acquire preferably effect. Thus, the paper provides a new method to the research of soil classification and grade evaluation.

English Abstract

FU Qiang, LU Tie-guang, FU Hong. APPLYING PPE MODEL BASED ON RAGA TO CLASSIFY AND EVALUATE SOIL GRADE[J]. 中国地理科学, 2002, 12(2): 136-141.

引用本文:

FU Qiang, LU Tie-guang, FU Hong. APPLYING PPE MODEL BASED ON RAGA TO CLASSIFY AND EVALUATE SOIL GRADE[J]. 中国地理科学, 2002, 12(2): 136-141.

FU Qiang, LU Tie-guang, FU Hong. APPLYING PPE MODEL BASED ON RAGA TO CLASSIFY AND EVALUATE SOIL GRADE[J]. Chinese Geographical Science, 2002, 12(2): 136-141.

Citation:

FU Qiang, LU Tie-guang, FU Hong. APPLYING PPE MODEL BASED ON RAGA TO CLASSIFY AND EVALUATE SOIL GRADE[J]. Chinese Geographical Science, 2002, 12(2): 136-141.

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APPLYING PPE MODEL BASED ON RAGA TO CLASSIFY AND EVALUATE SOIL GRADE

APPLYING PPE MODEL BASED ON RAGA TO CLASSIFY AND EVALUATE SOIL GRADE

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APPLYING PPE MODEL BASED ON RAGA TO CLASSIFY AND EVALUATE SOIL GRADE

1. College of Hydraulic Power, Sichuan University, Chengdu 610065, P. R. China; 2. Northeast Agricultural University, Harbin 150030, P. R. China

English Abstract

APPLYING PPE MODEL BASED ON RAGA TO CLASSIFY AND EVALUATE SOIL GRADE

1. College of Hydraulic Power, Sichuan University, Chengdu 610065, P. R. China; 2. Northeast Agricultural University, Harbin 150030, P. R. China

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目录

1. College of Hydraulic Power, Sichuan University, Chengdu 610065, P. R. China;

2. Northeast Agricultural University, Harbin 150030, P. R. China

1. College of Hydraulic Power, Sichuan University, Chengdu 610065, P. R. China;

2. Northeast Agricultural University, Harbin 150030, P. R. China