By making an analysis of different relations of distance, methodof gravity center, methodofmeanvalueof class and method of sum of squares of deviations are compared in this paper.
本文从各种距离之间的关系来对重心法、类平均法及离差平方和法作一些分析比较。
2
According to the valueof weighted mean roughness the priority of different characteristic information can be distinguished, so the proposed method possesses strong tolerant ability.
按加权平均粗糙集的大小区分层内各特征信息的优先级，具有很强的容错能力。
3
Analyzed the valueof copper of recovery in electrolytic zinc smelter, made a conclusion that the copper was a valued element, mean while, described the method of copper recovery.