Two factors are considered in cluster-validity criterion to enhance the robustness of algorithm and the validity of clustering, one is fuzzy membership and the other is geometric property.
新的目标准则函数考虑了数据集样本的模糊隶属关系和样本几何分布两个方面的因素，使算法的鲁棒性和分类的正确性大大加强。
The relations between the geometric parameters, as well as the heat transfer criterion equations, of the plane spiral-tube are derived.
本文导出了平面螺管几何参数之间的关系及换热准则方程，并对这种换热器进行了设计计算和特点分析。
Considering the initial geometric deflection, the theoretical ultimate load is obtained based on the yielding criterion of the cross-sectional edge stresses.
对于均布轴向荷载与集中荷载共同作用下的压杆，考虑初始几何位移的影响，根据边缘纤维屈服准则得到构件的理论最大荷载。
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