抽樣比 的英文怎麼說
中文拼音 [chōuyàngbǐ]
抽樣比
英文
sampling fraction-
This article discussed ar modeling method, capon method, music method and mn method four kinds of high resolution algorithms principle and has separately made the computer simulation in the ideal situation to the above four algorithms. through the comparison, the beam width of high resolution algorithm is much narrower than conventional beamforming method. then unifies the actual utilization, discussed the influence of time delay unbalance, time domain sampling, plane wave supposition and array element with scope and phase not identically to the beamforming and made the computer simulation
本文首先討論了ar模型法、 capon法、 music法和mn法四種高解析度演算法的原理，在理想的情況下分別對上述四種演算法作了計算機模擬，通過比較，高解析度演算法的束寬比常規波束形成法窄得多;然後結合實際運用時的情況，重點探討了延時失配、時域抽樣、平面波假設和基陣的幅相不一致對波束形成的影響並做了計算機模擬。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。But if you compare the outturn sample of the present parcel with that of your previ9ous supplies - a sample of which i ' ve brought with me - you will readily see a marked difference in colour
但是你如果把這批貨的抽樣同上一批貨比較一下（我把上批貨的抽樣帶來了）就容易看出顏色明顯不同。Proportion allocation in stratified random sampling
按比例分層隨機抽樣Panic disorder is characterized by the recurrent sudden attacks of physical and emotional anxiety symptoms, phobic avoidance behavior, and impairment of social function. in order to understand its prevalence, symptom patterns, and help seeking behavior, the hong kong mood disorders center of the faculty of medicine, the chinese university of hong kong conducted a large - scale telephone survey from april 16 to 25, 2002. 3, 004 respondents aged 15 to 60 ( 1, 446 males and 1, 558 females ) were randomly selected and interviewed
驚恐癥是情緒病的一種，香港中文大學醫學院香港健康情緒中心委託香港中文大學香港亞太研究所，于本年4月16至25日以隨機抽樣形式透過電話訪問了3 ， 004位年齡介乎15至60歲的人士，當中1 ， 446為男性， 1 ， 558人為女性，了解香港人患驚恐癥的比例、癥狀及求醫意欲。Two block time - recursive algorithms are developed for the efficient and fast computation of the 1 - d rdgt coefficients and for the fast reconstruction of the original signal from the coefficients in both the critical sampling case and the oversampling case. the two algorithms are implemented respectively by a unified parallel lattice structure. and the computational complexity analysis and comparison show that the proposed algorithms provide a more efficient and faster method for the computation of the discrete gabor transforms
首先論證了一維rdgt系數求解演算法和由變換系數重建原信號演算法，不論是在臨界抽樣條件下還是在過抽樣條件下，都同樣具有塊時間遞歸特性，並提出了相應的塊時間遞歸演算法及其并行格型結構實現方法，計算機模擬驗證了并行格型結構實現的可行性，計算復雜性分析與比較也說明了rdgt塊時間遞歸演算法的并行格型結構在計算時間方面所具有的高速和高效性能。The confidence tests can also bring more convenience in engineering, as that the tests for the percentile and percentage of normal population that are difficult in hypothesis tests can be easily solved by the present method
不但比傳統的正態分佈假設檢驗和抽樣檢驗具有更高的精度，而且更加便於應用，許多假設檢驗和抽樣檢驗難以處理的問題（如母體百分率和百分位值的檢驗） ，採用置信檢驗可以容易地得到解決。Commonly, subgroup size, sampling rate, and control limit are three main parameters in designing a control schemes
通常樣本容量、抽樣比例和控制線的選擇是設計控制圖的三個主要指標。Average production length ( apl ) is introduced as the criterion for measuring control scheme performance. a model is developed with sampling rate and maximum false alarm rate as inputs to determine the optimum subgroup size and control limits as measured by apl
本文以平均運行長度（ apl ）為衡量控制圖有效性的標準，以抽樣比例和最大可接受錯誤報警率為輸入，通過建立模型的方法，確定最佳的樣本容量和控制線參數。However, when upon assessment, a radiation worker ' s estimated annual cumulative exposure is unlikely to exceed a specific proportion of the dose limit, the employer may instead monitor the operation environment or personal doses through sampling
但經評估輻射作業對輻射工作人員一年之曝露不可能超過劑量限度之一定比例者，得以作業環境監測或個別劑量抽樣監測代之。In video shot segmentation, an improvement to double - threold shot segmentation algorithm is provided, which uses multi - frame sampling technique and can improve the performance significantly on the detection of gradual transition. an abrupt transition detection algorithm is also developed on the basis of the closest pixels matching in spatio - temporal slice, which decreases the false rate and computing strength greatly
在視頻鏡頭分割方面，提出了一種基於多幀抽樣的雙重比較鏡頭分割演算法，有效地提高了對視頻鏡頭漸變檢測的性能;同時，針對視頻鏡頭突變的檢測，提出了一種基於最近鄰像素匹配的時空切片鏡頭突變檢測演算法，該演算法顯著降低了突變檢測的虛檢率和計算量。This converter includes not only analog parts such as the bandgap voltage reference, voltage pump, sample / hold unit, one bit comparator of high precision, multiply - by - two and difference unit, but also digital parts such as register and multiplexer. so the design of this type of converter is mixed signal design
模數轉換器的內部電路包括基準源、降壓模塊、抽樣保持電路單元、高精度的1bit比較器、倍乘作差單元等模擬電路模塊，以及寄存器組、選擇器等數字電路模塊，屬于數模混合電路。Secondly ， the author point out the problems of development of chinese tourism marketing for example ， the tourism marketing is not perfect ， and the marketing kind is not complete ， and the system of tourism marketing is imperfect and so on in the end ， the author gives some advice how to settle these problems in order to make chinese tourism industry great progress the system of tourism maketing should be meliorated ； model of sales promotion of tourism product should be improved ； new objective tourism marketing should be developed ， for instance ， we should develop education tourism marketing ， rural tourism marketing and the rich residents of tourism marketing many methods of demonstration are adopted ， qualitative analysis and quantitative analysis are integrated ； deductjve reasoning and induction are expioited with ease ； the author anach importance to empoloy relative theorv ， of tourism ， at the same time ， the researching of the calse is emphasized
這篇論文針對我國目前的旅遊市場進行宏觀分析，首先就我國旅遊市場的宏觀背景即國內旅遊市場發展背景和國際旅遊、旅遊市場研究進展和趨勢進行初步探悉，運用現實的統計數據和抽樣調查數據進行分析論證；其次就我國目前旅遊市場的現狀和存在的問題進行闡述和分析，然後針對我國目前旅遊市場的特徵和存在的問題提出發展戰略和解決措施，分析問題的方法上主要採用抽樣調查、比較分析法、演繹與歸納、定量與定性相結合等。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。By sampling survey method, from the aspects of bibliographical availability, the ratio of book forecasting, fields for description, description format, acquisition costs etc., the paper makes a comparative analysis among the main chinese books acquisition bibliographies, including xinhua book news, cip data, national new books information, and bibliographies compiled by publishers, and hope can provide useful experience information for the selecting of library acquisition bibliography
摘要本文採用抽樣調查方法，對新華書目報（社科版與科技版） 、 cip數據、全國新書目和出版社自編書目等國內主要中文圖書采訪書目，從書目可供性、預告率、圖書預告征訂的實際可供時間跨度、著錄欄位、著錄格式（排版顯示格式） 、採集成本等方面進行比較分析，為落實《圖書館采訪工作規范》中的「選擇出最適合於本館使用的書目」提供借鑒。Collect network trending using advanced sampling for days, weeks, or months ; graph, chart or create comparative reports
利用幾天、幾周或幾個月的高級抽樣採集網路趨向；繪制圖表或生成相比較的報告；Techniques and software for statistical sampling, simulation, data analysis and visualization
用於統計抽樣、類比、資料分析及圖像化的方法和軟體。One group was told they ' d be watching a funny movie, the other was not. " blood drawn from experimental subjects just before they watched the video had 27 percent more beta - endorphins and 87 percent more human growth hormone, compared to blood from the control group, which did n ' t anticipate the watching of a humorous video, " explained lee berk of loma linda university
負責此項研究的心理學家李伯克說： 「血液抽樣調查顯示，與第二組不知道要看電影的人相比，第一組被試在看電影之前，血液中氨多酚一種會使人愉快的物質的含量高出27 ，生長激素含量高出87 。 」Rated activity sampling
評比作業抽樣In order to improve the efficiency, we use the sampling points of the sequences to compute the distance of two sequences. the distance of sampling points is used to filter the sequence of the database, so the similarity searching space is reduced and the efficiency of the query is improved
在保持序列變化模式的前提下，使用抽樣點來計算序列之間的dtw距離，並依據抽樣比率和查詢參數選擇過濾距離對序列數據庫進行過濾，實驗結果表明，抽樣過濾的方法明顯提高了查詢效率。分享友人