抽樣不定性 的英文怎麼說

中文拼音 [chōuyàngbùdìngxìng]
抽樣不定性 英文
sample uncertainty
  • 抽 : 動詞1 （把夾在中間的東西拉出; 提取） take out （from in between） 2 （從全部里取出一部分; 騰出） ...
  • 樣 : Ⅰ名詞1. （形狀） appearance; shape 2. （樣品） sample; model; pattern Ⅱ量詞（表示事物的種類） kind; type
  • 不 : 名詞[書面語] （剁物所用的木墩） a block of wood
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 抽樣 : [統計] sample; sampling; specimen; samples draw
  1. Firstly, by numerical and theoretical analysis, the author compares some existent confidence intervals, for example, " exact " confidence interval, wald confidence interval and bayesian confidence interval, and finds some deficiencies points of the confidence intervals, whose modification version has been proposed. also, several better confidence intervals such as are also presented. secondly, for given confidence coefficient and interval width, the author constructs a class of asymptotical two - stage interval estimate procedures. at the same time, under varies restriction of confidence coefflcientent interval width, the optional sample size of the first stage has been computed by numerical computation. the numerical computation shows that the method considered in this dissertation have good properties and applied value

    同時，由於poisson分佈的特性，我們知道不存在其參數區間長度小於0 . 5的置信區間，基於這些情況，我們主要展開了以下兩個方面的研究：一是利用數值計算分析與理論分析的方法對現有的若干置信區間如「精確」置信區間， wald置信區間， bayes置信區間等進行分析比較，發現了一些缺陷，針對這些缺陷，我們進行適當的修正，並得到幾種性質較好的置信區間如：修正大樣本區間jeffreys原則下置信區間二是針對已給定的置信系數與區間長度，我們提出了一種漸近的兩階段區間估計程序，並利用數值計算的方法，在各種置信系數與區間長度限定下，算出了最優的第一階段觀測次數（抽樣量） ，大量數據表明，本文考慮的方法性態良好，具有應用價值。
  2. This paper focuses attention on using probabilistic simulation to describe this stochastic nature, and adopts the sequential monte - carlo algorithm to simulate each element status in photovoltaic system, and calculating responded reliability indices

    本文的重點是運用概率抽樣描述這種不確定性，採用蒙特卡羅序貫模擬對光伏發電各環節狀態進行概率模擬，並計算相關可靠性指標。
  3. First, this paper gives an introduction of some methods of unequal probability sampling, their estimators and variance estimators, including sampling with pps with replacement, methods of sampling without replacement suggested by brewer, durbin, sampford, des raj, murthy, rao - hartley - cochran. then, at the basis of rao and bayless ' s study, we consider that population can be splited two random subpopulations, which are respectively drawn from different infinite super - populations, and compare the stabilities of estimators of the methods that given above. we find that the minor difference between two super - populations has great effect on the efficiency of the estimators for the population with moderately large coefficient of variation ( c. v. )

    本文首先從理論上介紹了若干種不等概率抽樣方法，它們的估計量、估計量的方差及其估計，其中包括有放回ppz及pps抽樣，不放回不等概率抽樣中的brewer 、 durbin 、 sampford 、 desraj ， murthy 、 rao - hartley - cochran等人的方法；其次，在rao和bayless兩人就樣本單元數n = 2的情形對上述抽樣方法進行比較的基礎上，將總體隨機地分成兩個子總體，視每個子總體取自不同的線性超總體，在文中，我們利用計算機實現隨機分組，並通過畫圖比較各方法估計量的穩定性，結果表明，對變異系數c . v . （ x ）較大的總體而言，兩個超總體之間的微小差異將對估計量的穩定性產生很大的影響，從而說明rao和bayless的比較結果還不夠完善。
  4. By means of the law of large number, repeated sampling method and nonlinear regression method, the direct component models are built up for bronze inscription system, seal script system, official script system and song dynasty regular script system

    藉助于大數定律、重復抽樣方法和非線性回歸方法，分別建立了金文、小篆、漢隸和宋楷幾個具有代表性的、不同時代的漢字系統直接構件關系模型。
  5. They have also suggested that the very concept of abstract numbers ? the idea of a oneness, a twoness, a threeness that applies to any class or objects and is a prerequisite for doing anything more mathematically demanding than setting a table ? is itself far from innate

    這也同樣表明：應用於任何類和物體的抽象數字，如，一維性、二重性、三重性是做比擺桌子這類更具數學要求的事情的先決條件? ?這並不是天生就決定了的。
  6. If it is not good enough, optimal control module based on principle component analysis and clustering search will function for optimization. this algorithm makes no request for accurate analytical model and maintains search efficiency and self - adjusting performance by an optimal parameter set derived from process data, which is proved to be effective. by practical running of dcs, a prominent tracing performance is gained and variation of parameters is limited in a small range, which enhance stability and production benefit of sintering process obviously

    燒結過程是一個影響因素復雜、干擾嚴重、具有不確定性的工業過程，傳統的基於對象精確解析模型的優化策略難以奏效，因此在控制參數優化模塊中提出了一種基於主元分析和聚類搜索的優化匹配演算法，該演算法不要求對象的精確模型，其搜索效率和自校正性能依賴于從生產過程歷史數據中抽取的優化參數樣本庫，充分利用了燒結生產過程積累的生產數據所包含的信息，取得了不錯的效果。
  7. In chapter 1, the author first study the two - stage confidece intervals for the variance of a normal distribution, then work out the optimal sample size of the first stage by numerical computations and establish a proof for the non - existence of fixed - size sampling

    在第1章里，作者首先研究了正態總體方差的兩步置信區間，並用數值計算的方法給出了第一步的最優抽樣量，且證明了固定樣本抽樣的不存在性。
  8. The company has devoted, since its inception, to a steady and healthy development mode and is the first of this kind in fuzhou region which products were tested qualified, in accordance with the state quality supervision center of fireproof construction materials gb 86241997 graded methods of inflammation of construction materials, by the zhejiang provincial firefighting brigade. its inflammation meets all standards inscribed in gb 86241997 class a non - flammable and ga 160 - 1997 non - flammable inorganic compound board. fuhong class a inorganic dampproof fireproof board is a kind of novel hi - tech board, a class decoration requirement of the gb 6566 - 2001 standard of state environment protection administration environment protection building material technology requiremen symbolizing your distinguished status and an ideal guarantee of your elegant life

    我司致力於穩健發展，產品為福建省福州地區第一家經省消防總隊抽樣，通過「國家防火建築材料質量監督檢驗中心」按強制性國家標準gb 86241997建築材料燃燒性能分級方法進行防火安全性能型式檢驗，其燃燒性能達到gb 86241997規定的a級不燃性及ga 160 - 1997不燃性無機復合板全項性能合格，並同時通過國家環境保護總局綠色環保建材技術要求之gb 6566 - 2001標準的a類裝修材料要求。
  9. It is the researchful purpose of this paper that the methods of appraising the existing structural reliability basing on own information are found, which will impel the methods of appraising the existing structural develop from applied methods to probability methods. the contents of this paper have mainly four, including : firstly, the normal value of permanent load in the existing structure is ascertained by the way that is called bayes - small capacity, which considers the dates of design and the road - test dates. secondly, by introducing the random variable that is statistical ambiguity, the statistics of loading and resistance of existing structure are researched

    本文研究目的是針對現有結構的特點，建立基於自身信息的現有結構可靠性的實用評定方法，推動我國的現有結構可靠性鑒定方法由實用鑒定法向概率鑒定法發展，主要研究內容包括四個方面：一、結合結構原設計數據和現場抽樣實測數據，研究了恆載標準值的統計推斷方法，提出bayes小樣本統計推斷方法；二、利用統計不定性隨機變量，結合現有結構的特點，提出荷載、抗力變異性的小樣本統計推斷方法；三、分析了現有結構抗力變異性的主要影響因素，並利用實測數據進行了實例分析；四、針對現有結構自身的荷載、抗力統計特性，研究了現有結構承載力的校核表達式，對恆載、抗力分項系數提出修訂建議，建立了基於自身信息的現有結構可靠性實用評定方法。
  10. The beam width is stretched. the algorithm performance has the very big weaken. but the convention beamforming algorithm performance is stabler, time delay unbalance, time domain sampling, plane wave supposition and array element the influence which creates to it is not big

    通過比較，高解析度演算法在考慮上述情況后，波束方向出現偏差，束寬被展寬，幅度有很大的衰減，性能明顯下降;而常規波束形成演算法的性能較穩定，延時失配、時域抽樣、平面波假設和基陣的幅相不一致對其造成的影響不大。
  11. Before we can understand what a particular sample can tell us about the population, we should first understand the uncertainty associated with taking a sample from a given population

    要能夠理解一個具體的樣本究竟能夠傳遞關于總體的什麼樣的信息，我們首先需要理解從一個給定的總體中抽取樣本時究竟有什麼樣的不確定性。
  12. The third part describes the general situations such as the composing, reasons for the work and working treatment of family worker. not only contains the quantitative information of sample research, but also contains qualitative analysis of individual cases

    第三部分對家政服務員構成、從業動因、工作待遇等概況進行了描述，不僅有抽樣調查的定量資料，還有個案訪談的定性分析。
  13. In respect of direct radiation in air and from the ground, real - time measurements are undertaken by 10 fixed stations of the radiation monitoring network ( figure 1 ) which send data back to hko every minute. the air is also sampled at these sites to cover the inhalation pathway. to enable early response, an automatic gamma spectrometry system at ping chau, the station closest to daya bay, continuously samples the air, carries out measurements and transmits the results to hko, all automatically

    該網路由十個固定監測站所組成，不停地測量香港境內空氣及土壤中放射性物質的直接照射，並每分鐘實時把測量結果傳回天文臺總部。此外，每個監測站亦會抽取空氣樣本，監測呼吸途徑中放射性物質。為了在發生事故時能盡快作出應變，天文臺在香港最接近大亞灣的平洲設立了一套自動伽馬譜法系統，不停地收集空氣樣本，作實時實地的輻射測量，並將測量結果全自動地傳送回天文臺。
  14. The sampling could be stochastic and non - scheduled in the implementation of the official sampling procedure

    官方抽樣程序保證了抽樣工作的隨機性和不確定性。
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