国土资源科技管理
國土資源科技管理
국토자원과기관리
Scientific and Technological Management of Land and Resources
2008年
4期
71~74
,共null页
农用地定级 粗集理论 支持度 权重
農用地定級 粗集理論 支持度 權重
농용지정급 조집이론 지지도 권중
farmland grading ; theory of rough set ; support ; weight
采用粗集理论的思想，引人支持度的概念，支持度越大，关联越强，定级因素的权重值越大：支持度越小，关联越弱，定级因素的权重值越小，用这种方法所划出的农用地级别能够准确反映农用地等质量的实际水平，使农用地定级成果更具合理性和科学性。以攀枝花市盐边县为例，对该县农用地划出了级别。
採用粗集理論的思想，引人支持度的概唸，支持度越大，關聯越彊，定級因素的權重值越大：支持度越小，關聯越弱，定級因素的權重值越小，用這種方法所劃齣的農用地級彆能夠準確反映農用地等質量的實際水平，使農用地定級成果更具閤理性和科學性。以攀枝花市鹽邊縣為例，對該縣農用地劃齣瞭級彆。
채용조집이론적사상，인인지지도적개념，지지도월대，관련월강，정급인소적권중치월대：지지도월소，관련월약，정급인소적권중치월소，용저충방법소화출적농용지급별능구준학반영농용지등질량적실제수평，사농용지정급성과경구합이성화과학성。이반지화시염변현위례，대해현농용지화출료급별。
This paper marks the farmland grading of Yanbian County as a case study principally by using the theory of rough set to define factors of farmland grading and introduces the idea of support degree. The larger the degree, the more powerful the rele- vance, and the larger the specific gravity of the factors, and vice versa. The application of the method to farmland grading can reflect the quality of farmland and make the grading more scientific and rational.
