现在我们讨论的唯一的事,就是样本的大小。
In the moment the only thing we are talking about is the size of the sample.
考虑到样本获取的代价性,如何根据训练样本的大小来选择有效分类器是实际分类中需要解决的问题。
How to define training sample size and therefore select classifiers is a problem to solve in actual classification considering the cost of acquisition of samples.
将所有的研究的数据合成,对于分类变量效应指标为风险比,对于连续型变量效应指标为加权均数差,根据研究样本的大小来加权。
Data were pooled across studies, and relative risks for categorical outcomes and weighted mean differences for continuous outcomes, weighted according to study sample size, were calculated.
到2005年8月,使用鲸鱼几乎感觉不到的飞镖枪,已从955鲸鱼身上采集到许多铅笔橡皮大小的样本。
By August 2005 it had collected pencil-eraser sized samples from 955 whales using a dart gun that barely made the animal flinch.
为了得到接近实际的的结果,你一般需要什么样大小的样本?
What kind of sample size do you need to generally get close to that actual?
在2018年,我们是否以及何时从火星上取回一个咖啡杯大小的样本,这也将需要我们地球人的审议。
If and when we bring back a coffee-cup-size sample from Mars in 2018, it will also need Earth-bound scrutiny.
该研究选取不同大小的样本进行了一系列实验室实验,形成了直觉学习过程的计算模型。
The researchers conducted a series of laboratory experiments with groups of various sizes and developed a mathematical model of the intuitive learning process.
他写道,“有时一粒沙子大小的样本中就有超过一千的微生物。”
“Sometimes more than a thousand, ” he wrote, “in anamount of material the size of a grain of sand.”
Weissleder希望微型核磁共振机将帮助医生在不到一小时内完成采集和检测一个针头大小的活体样本, 这样当患者从采集过程的昏睡中苏醒的时候, 就能得知检测结果了.
Weissleder hopes the device would allow a doctor to test a needle biopsy sample within minutes of collecting it and tell the patient the results as soon as he or she awakes from the procedure.
组织应当建立验证计划,包括方法、接受标准、如果可以,样本大小的统计技术。(新增)
The organization shall document verification plans that include methods, acceptance criteria and, as appropriate, statistical techniques with rationale for sample size.
组织应当建立确认计划包括方法、接受标准、如果可以,样本大小的统计技术。(新增)。
The organization shall document validation plans that include methods, acceptance criteria and, as appropriate, statistical techniques with rationale for sample size.
局限性:粪便取样方法已经被标准化了,但是样本大小取决于粪便的稠度。
LIMITATIONS: the fecal sampling method is standardized, but the sample size depends on fecal consistency.
样本大小是该地区,该扫描仪编码内容创建一个单独的像素。
The sample size is the area that the scanner encoder reads to create an individual pixel.
虽然我们有一些有天赋的球员在测试阶段,它还是一个非常小的样本大小。
While we had some talented players in beta, it's still a very small sample size.
但有没有样本大小的方法,你会用它来选择你的样品,可能作出的反应率,潜在的变量和因变量的信息。
But there is no information about your sample size, the method you will use to select your sample, the likely response rate, potential independent and dependent variables.
虽然研究的样本大小符合作者的先天决定的功率计算,在分析两组再断裂发生率之间差异时,可能需要一些重要的临床考虑。
Although the study met the sample size dictated by the authors' apriori power calculation, the difference in the rerupture rate might be considered clinically important by some.
在畜牧和生物试验中,需预先估计试验所需的样本大小。
Sample sizes should be dicided before an experiment in animal science was conducted.
然后,让82名女士来闻气味样本,并且就样本气味的怡人程度、吸引力大小、阳刚指数和浓烈程度打分。
Then, 82 women were asked to sniff the odour samples and judge them on their pleasantness, attractiveness, masculinity and intensity.
为了避免因样本容量大小而造成的误差,我们必须使用t分布。
If we wish to avoid the inaccuracies caused by the size of the sample, we need to use the t distribution.
本文首先研究了样本集大小对线性识别方法和非线性识别方法的影响问题。
Effect of the dataset size on linear and nonlinear methods is firstly discussed.
批处理的大小,这些样本通常很小,在该命令中的50至100克。
The batch size of these samples were typically small, in the order of 50 to 100 grams.
然而,由于本研究受其样本大小、研究范围和时间的限制,其研究结果不能随意应用到任何情况中。
However, due to the various limitations, mainly the research scope, the sample size and time, the results might not be overgeneralized.
科学家们打算在不同的条件下扩大样本大小进行深入研究。
They intend to do further studies with larger sample sizes in different conditions.
该算法引入样本区域密度的概念,根据密度大小按不同的概率选取样本,以修正权矢量。
In this algorithm, sample region density is introduced. Weight vectors are updated under the condition of selecting samples with different probability according to their density.
涉及到设计方法的研究中,需要根据目标人群,抽样方法和技术来选择样本大小。
The involves the methods of design study, target population, sampling method and the techniques that were used to select the sample size.
结果:主要影响样本大小的参数为易感基因频率、环境因素暴露率、基因遗传方式,而疾病的发生率对样本量影响很小。
Results: The most influential parameters of sample size were susceptibility frequency of the genotype, environmental exposure factors in the population, and genetic modes.
系统随机抽样的推荐样本大小是500名儿童。
The recommended sample size for a systematic random sampling is 500 children.
影响抽样误差大小有很多因素,如标志变异程度,样本单位数量的多少,抽样方式方法的选择等。
There are many factors that influence the sampling error, such as, extent of mark variation, amount of sample unit and the choice of sampling method, etc.
影响抽样误差大小有很多因素,如标志变异程度,样本单位数量的多少,抽样方式方法的选择等。
There are many factors that influence the sampling error, such as, extent of mark variation, amount of sample unit and the choice of sampling method, etc.
应用推荐