population-based sample 中文意思是什麼
population-based sample
解釋
選自人群的樣本- population : n. 1. 人口；人口總數；全體居民；人口的聚居。2. 物的全體[總數]；【生物學】蟲口；種群（量）；群體；族，組，個數；【統計學】對象總體，全域。3. 【物理學】布居；密度。4. 〈罕用語〉殖民。
- based : 基準
- sample : n 1 樣品，貨樣。2 標本；榜樣，實例。3 【統計】典型取樣，抽檢查。4 【電訊】信號瞬時值。5 【冶金】 ...
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The confidence level of inferences about the population based on such a sample is 95 %
用該樣本數據對總體進行推論，置信度為95 % 。 -
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
語料庫分詞質量的評價問題是漢語語料庫的特有問題，已有的簡單隨機抽樣的方法，當語料庫規模變大時，無法精確估計分詞質量評價中語料庫樣本的總體方差，同時，為了保證檢驗的精度，傳統抽樣方法的檢驗費用太高。 -
Based on the data from a sample survey entitled study of population childbearing willing in guangdong conducted by population and family planning committee of guangdong province and population institute of sun yat - sen university in october 2004, this paper analyzes the effect of individual features, policy and motives of chlidbearing on the desired childbearing number of guangdong population
摘要本文利用廣東省人口與計劃生育委員會與中山大學人口研究所2004年10月進行的題為「廣東省人口生育意願研究」的抽樣調查數據，分析了個人因素、政策因素以及生育目的對廣東人口意願生育數量的影響。 -
In this paper, we estimated the magnitude and the proportion of the aged poor population by rural and urban and by provincial - level category in shandong, based on the fifth national census and the " china cross - sectional rural - urban elderly sample survey " conducted by the china aging research center in december 2000
摘要本文利用第五次人口普查數據和中國老齡科研中心於2000年12月組織的「中國城鄉老年人口狀況一次性抽樣調查」數據，經過加權處理后對山東、以及山東分城鄉的貧困老年人口的比例和數量進行了估計。 -
Kde is a non - parametric method which is capable of extracting the population ' s probability density function ( pdf ) based on data sample only without any a prior knowledge about the statistic properties of the data regime. in this thesis, it is conducted the implementation of the kde for monitoring the performance of batch production processes
用核函數法概率密度估計對間歇生產過程進行實時狀態監測的主要優點是它屬于非參數法概率密度估計的一種，不需要數據總體的任何先驗知識或是假設而直接基於實測數據樣本求出總體的概率分佈密度函數，擺脫了對不可靠的先驗知識的依賴。 -
The size of an audience estimated to exist in the population, based on sample information
根據樣本的信息，推斷在總體人口中所存在的某種受眾總量
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