1) partially missing data
部分缺失数据
1.
If one sampling is under observation completely, there is no missing data, however, when it is not under observation completely and every data may lose with a certain probability, we call this partially missing data.
本文在部分缺失数据的情况下,用已观测到的数据的和的均值对缺失数据进行了补充,分别讨论了特殊指数分布参数的一种渐进无偏估计和无偏估计,并且证明了其中的无偏估计在参数的某一无偏子类中具有最小方差性。
2) missing data
缺失数据
1.
Multiple imputation for analyzing 2×2 cross over design with missing data;
多重填补处理有缺失数据的2×2交叉设计资料的计算机模拟
2.
EM estimation for missing data in medical research;
医学科研中缺失数据的EM估计
3.
Asymptotic behavior of semiparametric regression model under missing data;
缺失数据下半参数回归模型的渐近性质
3) data missing
数据缺失
1.
Firstly,based on correlation analysis,five reference points which were most correlative with the data missing points were obtained,then the data of both reference points and data missing point in the stage were simulated and verified.
首先基于相关性分析,选择与数据缺失监测点应变值相关性最强的5个监测点作为参考点;然后利用未缺失时间段内待恢复监测点和参考点的应变数据进行建模和检验,一半数据用来建立BP神经网络模型,一半数据用来进行模型的检验;最后利用建立的模型对缺失的数据进行恢复,得到了完整的应变监测数据。
4) missing data
数据缺失
1.
We get the estimation of parameters of three-parameter lognormal distribution ba sed on missing data.
本文给出数据缺失场合三参数对数正态分布的参数估计,并通过Monte-Carlo模拟说明了本文方法的可行性。
2.
In particular,with the non-ignorable missing data,how to fill the data to improve the estimation precision.
抽样调查中经常会出现数据缺失现象,尤其是当数据为不可忽略的缺失时,如何对数据进行填充才能使得估计有效便成为需要关注的问题。
3.
Analysis and comparison of methods dealing with missing data of incomplete information system;
文章主要分析和比较在数据缺失或信息不完备的情况下空缺数据的处理方法。
6) partial edentulous jaw
部分牙缺失
1.
Abjective:To evaluate the clinical results of immediate implant function loading in the partial edentulous jaws.
目的:对部分牙缺失种植即刻功能负荷进行临床探讨。
补充资料:21号染色体部分缺失综合征
21号染色体部分缺失综合征
病名。即21q-综合征。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条