Using the same sample data just discussed above, the following illustrates the difference in cardinality estimates with and without the use of statistical view for the query.
下面使用以上讨论的相同的示例数据,阐释在使用和不使用查询的统计视图的情况下基数估计的差别。
Just under 7% of all American homeowners had this "negative equity" at the end of December 2006 estimates Mr Cagan, using a sample of 32m houses (see chart 1).
Cagan用一个3200万房屋的样本估计:到2006年12月底,不到7%的全美房主拥有这种“负资产物业”(见图一)。
But following the ADP report, which is based on a sample derived from roughly 24 million employees, some economists upgraded their estimates.
但根据ADP的报告,一些经济学家已经上调了预期。ADP的报告是根据从约2,400万名就业人员中抽取的样本得出的。
Point Estimates of parameters and Confidence Interval Interpretation are both means for making inferences about sample data.
对参数特征值估计和可信区间的诠释都是得出样本数据推论的路径。
Regional flood frequency analysis is a useful approach method that avoids the shortness of at-site sample series and estimates design flood for un-gauged area.
区域频率分析能充分利用相似流域组的资料来扩充信息量,克服单站样本系列资料短缺的局限,解决无资料地区设计洪水的估算问题。
The accuracy and precision of estimates of QTL position and effects will be enhanced as the increasing of QTL heritability, sample size and polymorphism information content of molecular marker.
随着QTL遗传力、样本容量和标记信息含量的增大,QTL位置以及效应估计值的准确度和精确度逐步提高。
The standard deviation of a sampling distribution. It is the statistic used to make statements about the accuracy of estimates based on sample information.
抽样分布的标准偏差。统计学上用来说明从样本预测的数据的准确性。
This paper gives Interval Estimates and Hypothetical Test Method of Parameter on Few Sample Uniform Distribution.
本文提出了小样本的均匀分布参数的区间估计和假设检验方法。
A spectral estimator based on the rank-deficient sample covariance matrix was developed to improve the robustness of estimates of the rank-deficient robust Capon filter-bank (RCF) spectral estimator.
为了解决秩亏RCF(robust Capon filter-bank)谱估计方法的估计性能不稳健问题,提出一种基于奇异协方差矩阵的谱 估计 方法。
A spectral estimator based on the rank-deficient sample covariance matrix was developed to improve the robustness of estimates of the rank-deficient robust Capon filter-bank (RCF) spectral estimator.
为了解决秩亏RCF(robust Capon filter-bank)谱估计方法的估计性能不稳健问题,提出一种基于奇异协方差矩阵的谱 估计 方法。
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