1) roughness average R_a
平均粗糙度R_α
3) Weighted mean roughness
加权平均粗糙度
1.
This paper introduces the connotations of the decision tree algorithm and the method for constructing of the decision tree algorithm,improves the decision tree algorithm constructed by using the weighted mean roughness,and illustrates the advantages of the improvement algorithm with the example.
介绍了决策树算法的含义和构筑方法,对基于加权平均粗糙度构造决策树算法进行改进,通过实例说明了改进算法的优势。
2.
We presented weighted mean roughness, a new concept based on rough sets theory which is regarded as the criteria for choosing attributes.
基于粗糙集的理论提出了加权平均粗糙度的概念 ,将其作为选择分离属性的标准。
3.
In the process of constructing a decision tree, weighted mean roughness, a new concept based on rough set theory which is regarded as the criteria for choosing attributes is applied.
在构造决策树的过程中,基于粗集的理论运用了加权平均粗糙度的概念,并将其作为选择分离属性的标准。
5) Average roughness angle
平均粗糙角
1.
Surface of hard discontinuities of marble masses is measured,and roughness of the surface is described by average roughness angle.
通过对大理岩硬性结构面表面的量测,采用平均粗糙角描述大理岩硬性结构面表面粗糙度情况;分析不同粗糙度情况下岩样剪切位移与时间的变化规律。
6) mean asperity height of fracture face
裂缝面平均粗糙度
补充资料：平均
①一致；统一：平均如一｜天下平均，合为一家。②均匀；无轻重或多少之分：平均分配｜平均主义。③将总数按份儿均匀计算：平均数｜平均成绩｜平均工资。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条