FFC-SFCA incorporates Fisher discrimination method with fuzzy theory using fuzzy scatter matrix. By iteratively optimizing the fuzzy Fisher criterion function, the final clustering results are obtained.
FFC-SFCA通过模糊化散布矩阵,将模糊理论引入Fisher判别方法,通过对模糊Fisher准则函数迭代优化实现聚类。
参考来源 - 基于模糊Fisher准则的半模糊聚类算法A very efficient information criterion function means——MDL is presented to estimate the number of poles of the targets.
本文应用一种非常有效的准则函数方法——最小描述长度(MDL)方法来对目标极点数目进行估计,很好地解决了这个难题。
参考来源 - 基于多频和极点特征的高频超视距雷达目标识别·2,447,543篇论文数据,部分数据来源于NoteExpress
文中使用一个全局准则函数控制决策树的增长。
A global criterion function is used to control the growth of the decision tree.
但是,当模型的阶数很高时,无法计算并比较每一个备选模型的准则函数值。
However, when the order of ARMA model is very high, to compare every candidate model's criterion value is computationally infeasible.
AIC与SIC等准则函数方法是arma模型选择过程中经常使用的方法。
Several criteria such as AIC and SIC are usually used in ARMA model selection.
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