基于可变模糊集理论的城市用地适用性评估  

Suitability Evaluation of Urban land Based on Variable Fuzzy Sets Theory

作　　者：安玉伟[1] 姜云[2] 

机构地区：[1]黑龙江科技学院数力系,哈尔滨150027 [2]黑龙江科技学院建筑工程学院,哈尔滨150027

出　　处：《数学的实践与认识》2009年第4期68-74,共7页Mathematics in Practice and Theory

基　　金：黑龙江省教育厅基金项目(1053312)

摘　　要：依据可变模糊集理论,构造了城市用地适用性评估的相对差异函数模型和相对隶属函数模型,建立了求解综合相对隶属度的可变模糊评估模型,并应用该模型对2组待开发利用用地适用性进行了评估.研究表明:可变模糊评估是依据对立相对隶属函数来描述模糊概念,通过参数的可变性,自我验证可变模糊评估方法的可靠性,并通过级别特征值表达了评估对象属于某级别的程度,使评估结果更为精细,从而为城市用地适用性评估提供了一种有效的新方法.Based on varble fuzzy sets theory, the models of relative difference function and relative membership function for urban land suitability evaluation are constructed, and a variable fuzzy evaluation model for synthetic relative membership grade is presented. The suitability of 2-groups urban land is evaluated based on these models. This paper showed that variable fuzzy evaluation method is applied to describe fuzzy concept by opposite relative membership function, and reliability of fuzzy variable evaluation method is also verified itself through variability of parameter. The degree of appraisal object belonging to some grade is showed by grade characteristic number, and the evaluation results are more precision, so a new useful method for urban land suitability evaluation is given.

关 键 词：可变模糊集 城市用地适用性 相对隶属函数 

分 类 号：F293.3[经济管理—国民经济] F224