摘要
针对膨胀土胀缩等级分类问题,构造了一种新的区间关联函数,提出了"分类特征体现度越大,权重越大"的权重计算原理,给出了一种新的变权计算方法,将单指标关联函数的最大值作为其评价类的靶心坐标,根据样本与靶心的贴近度,对样本进行分类.将该方法应用于膨胀土的胀缩等级分类,其合理性和有效性得到了验证.
Aiming at the problem of expansive scale of expansive soils, the paper constructs a new interval incidence function. Also, it brings forward a principle of weight calculation which lies in that the clearer the symptom of the classified characteristic is, the bigger the weight is. A new computational method of variable weight is given. The maximum value of incidence function for single index is used to be the eye of target. Also the paper categorizes the sample on the basis of the degree of approaching between samples and targets. The method has been applied to determine expansive scale of expansive soils and its reasonableness and effectiveness is proved by the example.
出处
《数学的实践与认识》
CSCD
北大核心
2008年第16期63-68,共6页
Mathematics in Practice and Theory
关键词
膨胀土
胀缩等级
关联函数
靶心
贴近度
变权
expansive soil
expansive scale
incidence function
eye of target
degree ofapproaching
variable weight
