样本分布 meaning in English
sample distribution
sampling distribution
Examples
- To maintain high generalization ability , the most widespread class should be separated at the upper nodes of a binary tree
为了获得较高的推广能力，必须让样本分布广的类处于二叉树的上层节点，才能获得更大的划分空间。 - The results of simulation show that the soft sensor based on the proposed method has high precision and is suitable for time - varying system with samples which distribution is not uniform . 5
工业数据仿真结果表浙江大学博士学位论文明，该方法在线建立的软测量模型精度高，很适合慢时变对象、且训练样本分布不均匀情况下的软测量建模。 - Due to large - scale and imbalanced churn data , an improved svm - imbalance core vector machine svm ( icsvm ) was presented to predict customer churn , which has better arithmetic performance than others based on the test of real telecom data set
基于实际客户流失数据样本数据量大、正负样本分布不平衡的特点，提出了一种改进支持向量机算法，并将其用于电信行业的客户流失预测。 - Nerve network have the ability to automatic orgnanization and automatic studying , and can adapt to find the rule , which is concealed in the sample data . the studying ability of the nerve network is different form the traditional pattern recognition , the latter depend on the knowledge about the ruler of the recognition , while it is not necessary to know the knowledge about the ruler of recognition for the nerve network , which can get the relation of samples from the data . the main job of this paper is about how to apply nerve network to the real time recognition
神经网络具有自组织和自学习能力，能够在学习过程中，自适应地发现蕴涵在样本数据中的内在的特性及规律性，这一自学习的能力与传统模式识别中所采用的方法不相同，后者往往依赖于编程者对识别规则的先验知识，而神经网络对所要处理的对象在样本空间的分布状态无需作任何假设，而是直接从数据中学习样本之间的关系，因而它们还可以解决那些因为不知道样本分布而无法解决的识别问题。 - The thesis analyzes the sample distribution through quantificational and statistical way and hypothesis tests . the thesis discusses the mechanism that leads to the earning management of listed companies and the way through which the earning management come true . the thesis also proposes some suggestion about building up the securities business in our country
本文采用实证研究的方法，选择中国a股上市公司1998 ? 2000年度的净资产收益率( roe )作为研究对象，对样本分布进行了定量的统计分析和假设检验，从理论和实践相结合的角度系统地论述了上市公司盈余管理形成的机制和实现方式，并对如何进一步健全我国证券市场提出了若干建议。