简单随机抽样 meaning in Chinese
simple random sampling
simplex random sampling
Examples
- Precision of simple random sampling
简单随机抽样精密度 - Simple random sampling
简单随机抽样 - A new sign test based on double - ranked set sampling is proposed , and its asymptotic distribution was obtained ; and the asymptotic efficiency relative to under srs and rss was discussed , which show that this test had higher efficiency
摘要提出基于重排序集抽样的符号检验，给出相应的极限分布，并讨论了相对于基于简单随机抽样和排序集抽样的符号检验统计量的渐近效率，得出此检验具有较高的功效。 - The present methods for testing the large - scale corpus segmentation have the following faults : a . it is difficult to exactly estimating the variance of population ; b . the sampling quantity is too large to test the corpus segmentation . to solve the given problems , we put forward the testing method based on clustering , which sorts the sample of corpus into many group by clustering them
语料库分词质量的评价问题是汉语语料库的特有问题，已有的简单随机抽样的方法，当语料库规模变大时，无法精确估计分词质量评价中语料库样本的总体方差，同时，为了保证检验的精度，传统抽样方法的检验费用太高。 - The following merits can gain by using the clustering method : a . the sampling quantity can be reduced by using the method to test the segmentation of the large - scale corpus ; b . the testing precision can be improved and the variance of population can be estimated more exactly
与已有的简单随机抽样方法相比，本文提出的方法在大规模语料库分词质量评价时，有如下优点； a通过聚类得到语料库抽样样本分词正确率的分层知识，进而在检验中运用分层抽样带来的增益减少检验的费用： b