图2群丛分类多元回归树。
Fig. 2 Multivariate regression tree for associations classification.
SECRET是一个关于可伸缩线形回归树的算法。
SECRET is a new algorithm for scalable linear regression trees.
讨论了分类回归树方法,并介绍了它在开发高校科研决策支持系统中的应用。
Discusses the classification and regression trees method, introduces its application in developing universities 'science research decision support system.
入院次晨白细胞计数位于分类和回归树第三层,也对预后产生有意义的影响。
White blood cell count on 2~ndmorning is also correlated with the prognosis, while it is at the third step.
对于基因数据,则采用回归树分析基因与基因之间、基因与环境之间的交互作用。
For analysis of genomic data, regression tree approaches to the analysis of interactions between genes and between genes and the environment will be used.
CART测试结果表明,分类回归树可以较为满意地完成焊点接头强度的分类、预测任务。
It is shown by the CART test that the classification and regression tree can satisfactorily accomplish the task of classification and prediction of the joint of welded spot.
介绍了一种新的非参数回归RBF神经网络学习算法,该算法将R BF神经网络与回归树结合起来使用。
A new nonparametric regression learning algorithm for RBF neural network is presented. It is a novel method involving a combination between regression trees and RBF networks.
结果当应变量非正态分布时,直接应用现有回归树算法不能得出正确的分析结论;而当存在极端值时这一问题更为严重。
Results Default arithmetic of regression tree can't be used directly under the condition of non-normal distribution, existence of outlier would make the problem more severity.
结论虽然树模型是非参数分析方法,但回归树仍有其适用条件,在使用时需要对这些条件加以检查,必要时应采取相应的处理措施。
Conclusion Regression tree also has its application condition, these condition should be checked before analysis, correspond step should be applied when necessary.
趴在镜子上的蜥蜴稳定在一种颜色——绿色,是春树发新叶的那种嫩绿。每次把它放进去时都回归到这个颜色。
On the mirror the lizard stabilized at one color of green — the green of young leaves on trees in the spring — and returned to that one color each time I tried the experiment.
“这是不是说”,我有些困惑地说,“为了回归纯真状态我们必须再次食用知识之树的果实呢?”
"Does that mean", I said in some bewilderment, "that we must eat again of the tree of knowledge in order to return to the state of innocence?"
运用所拟合的数量化回归模型预测马尾松幼林的树高和胸径可达到较高的精度。
The fitted quantitative regression models could be used to forecast height and DBH of the young stands, and the forecast precision was high.
作者设计并实现了一个基于多变元逐步回归的二叉树分类器。
A binary tree classifier based on multivariate step-wise regression was designed and implemented.
目的探讨树型回归模型更为准确的剪枝技术。
Objective To investigate on the more accurate pruning strategies of regression tree.
这表明,筛选拟合的树高——年龄导向曲线回归方程很好地拟合了样本资料,很好地反映了树高的生长过程。
As showed the curve regression equations of tree height-age relations matched the sample data nicely and reflected the trees' grown process nicely.
该模型通过对使用多个样本集分别训练出的多棵决策树预测函数进行逻辑回归来得到最终的预测函数。
In this model, a logistic regression function is induced from multiple decision trees, which are built based on different training sample sets respectively.
决策树和决策树的组合,是解决分类问题和回归问题比较流行的一类算法。
Decision trees and their ensembles are popular methods for the machine learning tasks of classification and regression.
决策树和决策树的组合,是解决分类问题和回归问题比较流行的一类算法。
Decision trees and their ensembles are popular methods for the machine learning tasks of classification and regression.
应用推荐